Acetone

Formula: C₃H₆O
Molecular weight: 58.0791
IUPAC Standard InChI: InChI=1S/C3H6O/c1-3(2)4/h1-2H3
IUPAC Standard InChIKey: CSCPPACGZOOCGX-UHFFFAOYSA-N
CAS Registry Number: 67-64-1
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript.
Isotopologues:
- Acetone-D6
Other names: 2-Propanone; β-Ketopropane; Dimethyl ketone; Dimethylformaldehyde; Methyl ketone; Propanone; Pyroacetic ether; (CH3)2CO; Dimethylketal; Ketone propane; Ketone, dimethyl-; Chevron acetone; Rcra waste number U002; UN 1090; Sasetone; Propan-2-one; NSC 135802
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Information on this page:
Other data available:
- Reaction thermochemistry data: reactions 51 to 85
- Henry's Law data
- IR Spectrum
- Mass spectrum (electron ionization)
- UV/Visible spectrum
- Vibrational and/or electronic energy levels
- Gas Chromatography
Data at other public NIST sites:
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	-52.23 ± 0.14	kcal/mol	Cm	Wiberg, Crocker, et al., 1991	ALS
Δ_fH°_gas	-51.90 ± 0.12	kcal/mol	Cm	Chao and Zwolinski, 1976	ALS
Δ_fH°_gas	-51.99 ± 0.16	kcal/mol	Eqk	Buckley and Herington, 1965	ALS
Δ_fH°_gas	-51.72	kcal/mol	Cm	Pennington and Kobe, 1957	ALS
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_gas	-435.32 ± 0.20	kcal/mol	Ccb	Miles and Hunt, 1941	Corresponding Δ_fHº_gas = -51.78 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference	Comment
12.36	100.	Chao J., 1986	p=1 bar. Recommended values agree with results of statistical calculations [ Pennington R.E., 1957, Chao J., 1976] within 0.5-2.8 J/mol*K.; GT
13.43	150.
14.63	200.
16.99	273.15
17.93 ± 0.026	298.15
18.00	300.
22.00	400.
25.832	500.
29.207	600.
32.130	700.
34.656	800.
36.843	900.
38.740	1000.
40.382	1100.
41.807	1200.
43.043	1300.
44.116	1400.
45.050	1500.

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference	Comment
19.26 ± 0.19	332.6	Chao J., 1976	Experimental data [ Vilcu R., 1975] differ substantially from data selected here. Their correctness seems to be doubtful (see [ Kabo G.J., 1995]). Please also see Bennewitz K., 1938, Collins B.T., 1949, Pennington R.E., 1957.; GT
19.35 ± 0.19	334.
19.48 ± 0.038	338.2
19.92 ± 0.20	347.8
19.93 ± 0.20	348.
20.80 ± 0.21	363.
20.84 ± 0.041	371.2
20.92 ± 0.21	372.3
21.33 ± 0.21	378.
21.95 ± 0.22	393.
22.21 ± 0.045	405.2
22.51 ± 0.22	408.
22.30	410.
23.13 ± 0.46	422.6
23.76 ± 0.48	428.
24.02 ± 0.48	438.
23.58 ± 0.048	439.2

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_liquid	-59.60 ± 0.15	kcal/mol	Cm	Wiberg, Crocker, et al., 1991	ALS
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_liquid	-423.4	kcal/mol	Ccb	Guinchant, 1918	Corresponding Δ_fHº_liquid = -63.7 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δ_cH°_liquid	-431.21	kcal/mol	Ccb	Emery and Benedict, 1911	Corresponding Δ_fHº_liquid = -55.88 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity	Value	Units	Method	Reference	Comment
S°_liquid	47.90	cal/mol*K	N/A	Kelley, 1929	DH
S°_liquid	47.80	cal/mol*K	N/A	Parks, Kelley, et al., 1929	Extrapolation below 90 K, 54.0 J/mol*K. Revision of previous data.; DH
S°_liquid	52.70	cal/mol*K	N/A	Parks and Kelley, 1928	Extrapolation below 70 K, 60.04 J/mol*K.; DH
S°_liquid	52.01	cal/mol*K	N/A	Parks and Kelley, 1925	Extrapolation below 90 K, 71.63 J/mol*K.; DH

Constant pressure heat capacity of liquid

C_p,liquid (cal/mol*K)	Temperature (K)	Reference	Comment
29.983	298.15	Malhotra and Woolf, 1991	T = 278 to 323 K. Cp(liq) = 1.337 + 2.7752x10-3(T/K) kJ/kg*K (278.15 to 323.15 K).; DH
29.589	298.15	Costas, Yao, et al., 1989	DH
30.26	298.15	Petrov, Peshekhodov, et al., 1989	T = 258.15, 278.15, 298.15, 318.15 K.; DH
30.26	298.15	Al'per, Peshekhodov, et al., 1986	DH
29.59	298.15	Costas and Patterson, 1985	T = 283.15, 298.15, 313.15 K.; DH
29.59	298.15	Costas and Patterson, 1985, 2	DH
30.09	298.15	Saluja, Peacock, et al., 1979	DH
31.00	298.	Deshpande and Bhatagadde, 1971	T = 298 to 318 K.; DH
30.19	293.	Rastorguev and Ganiev, 1967	T = 293 to 333 K.; DH
30.010	298.2	Low and Moelwyn-Hughes, 1962	T = 253 to 308 K.; DH
30.650	298.	Staveley, Tupman, et al., 1955	T = 288 to 323 K.; DH
30.69	302.4	Phillip, 1939	DH
29.80	298.	Trew and Watkins, 1933	DH
29.80	298.	Trew, 1932	DH
29.799	296.99	Kelley, 1929	T = 16 to 298 K. Value is unsmoothed experimental datum.; DH
29.71	260.	Mitsukuri and Hara, 1929	T = 200 to 260 K.; DH
29.59	298.4	Parks and Kelley, 1928	T = 70 to 289 K. Value is unsmoothed experimental datum.; DH
29.80	289.4	Parks and Kelley, 1925	T = 70 to 290 K. Value is unsmoothed experimental datum.; DH
30.09	293.2	Williams and Daniels, 1925	T = 20 to 40°C.; DH
28.99	283.	Bramley, 1916	Mean value, 0 to 20°C.; DH
32.00	298.	von Reis, 1881	T = 289 to 352 K.; DH

Constant pressure heat capacity of solid

C_p,solid (cal/mol*K)	Temperature (K)	Reference	Comment
23.	173.	Maass and Walbauer, 1925	T = 93 to 173 K.; DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity	Value	Units	Method	Reference	Comment
T_boil	329.3 ± 0.3	K	AVG	N/A	Average of 117 out of 129 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_fus	178.7 ± 0.9	K	AVG	N/A	Average of 11 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_triple	178.5	K	N/A	Wilhoit, Chao, et al., 1985	Uncertainty assigned by TRC = 0.3 K; TRC
T_triple	176.6	K	N/A	Kelley, 1929, 2	Crystal phase 1 phase; Uncertainty assigned by TRC = 0.15 K; deduced from appearance of a small maximum in heat capacity; TRC
T_triple	177.6	K	N/A	Parks and Kelley, 1928, 2	Uncertainty assigned by TRC = 0.3 K; TRC
T_triple	177.6	K	N/A	Parks and Kelley, 1925, 2	Uncertainty assigned by TRC = 0.2 K; TRC
Quantity	Value	Units	Method	Reference	Comment
T_c	508. ± 2.	K	AVG	N/A	Average of 19 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
P_c	48. ± 4.	atm	AVG	N/A	Average of 9 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
ρ_c	4.63	mol/l	N/A	Campbell and Chatterjee, 1969	Uncertainty assigned by TRC = 0.05 mol/l; TRC
ρ_c	4.03	mol/l	N/A	Campbell and Chatterjee, 1968	Uncertainty assigned by TRC = 0.026 mol/l; TRC
ρ_c	4.79	mol/l	N/A	Kobe, Crawford, et al., 1955	Uncertainty assigned by TRC = 0.17 mol/l; TRC
ρ_c	4.70	mol/l	N/A	Rosenbaum, 1951	Uncertainty assigned by TRC = 0.02 mol/l; TRC
ρ_c	4.34	mol/l	N/A	Herz and Neukirch, 1923	Uncertainty assigned by TRC = 0.03 mol/l; TRC
Quantity	Value	Units	Method	Reference	Comment
Δ_vapH°	7.474	kcal/mol	N/A	Majer and Svoboda, 1985
Δ_vapH°	7.48	kcal/mol	N/A	Ambrose, Ellender, et al., 1975	AC
Δ_vapH°	7.09 ± 0.001	kcal/mol	V	Mathews, 1926	ALS

Reduced pressure boiling point

T_boil (K)	Pressure (atm)	Reference	Comment
329.3	0.026	Buckingham and Donaghy, 1982	BS

Enthalpy of vaporization

Δ_vapH (kcal/mol)	Temperature (K)	Method	Reference	Comment
6.96	329.3	N/A	Majer and Svoboda, 1985
7.67	308.	N/A	Soni, Ramjugernath, et al., 2008	Based on data from 298. to 318. K.; AC
7.15	344.	A	Stephenson and Malanowski, 1987	Based on data from 329. to 488. K.; AC
7.86	228.	A	Stephenson and Malanowski, 1987	Based on data from 178. to 243. K.; AC
8.08	254.	A	Stephenson and Malanowski, 1987	Based on data from 203. to 269. K.; AC
7.31	338.	A	Stephenson and Malanowski, 1987	Based on data from 323. to 379. K.; AC
7.05	389.	A	Stephenson and Malanowski, 1987	Based on data from 374. to 464. K.; AC
7.10	472.	A	Stephenson and Malanowski, 1987	Based on data from 457. to 508. K.; AC
7.84	274.	A	Stephenson and Malanowski, 1987	Based on data from 259. to 351. K. See also Ambrose, Sprake, et al., 1974 and Ambrose, Ellender, et al., 1975.; AC
7.82	276.	A,EB	Stephenson and Malanowski, 1987	Based on data from 261. to 328. K. See also Boublík and Aim, 1972.; AC
7.62	300.	EB	Baliah and Gnanasekaran, 1986	Based on data from 285. to 329. K.; AC
6.24	373.	C	Dmitriev, Kachurina, et al., 1986	AC
5.19	423.	C	Dmitriev, Kachurina, et al., 1986	AC
3.66	473.	C	Dmitriev, Kachurina, et al., 1986	AC
2.2	498.	C	Dmitriev, Kachurina, et al., 1986	AC
7.60	319.	N/A	Castellari, Francesconi, et al., 1984	Based on data from 305. to 333. K.; AC
7.79	285.	N/A	Sokolov, Zhilina, et al., 1963	Based on data from 278. to 293. K.; AC
7.43	319.	N/A	Brown and Smith, 1957	Based on data from 310. to 329. K.; AC
6.952	338.	C	Pennington and Kobe, 1957	ALS
8.4	253.	MG	Felsing and Durban, 1926	Based on data from 204. to 339. K.; AC
7.67	293.	MG	Felsing and Durban, 1926	Based on data from 204. to 339. K.; AC
7.34	313.	MG	Felsing and Durban, 1926	Based on data from 204. to 339. K.; AC

Enthalpy of vaporization

Δ_vapH = A exp(-βT_r) (1 − T_r)^β
Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
T_r = reduced temperature (T / T_c)

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Temperature (K)	A (kcal/mol)	β	T_c (K)	Reference	Comment
300. to 345.	11.22	0.2826	508.2	Majer and Svoboda, 1985

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)

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Temperature (K)	A	B	C	Reference	Comment
259.16 to 507.60	4.41877	1312.253	-32.445	Ambrose, Sprake, et al., 1974	Coefficents calculated by NIST from author's data.

Enthalpy of fusion

Δ_fusH (kcal/mol)	Temperature (K)	Reference	Comment
1.366	176.62	Kelley, 1929	DH
1.37	176.6	Domalski and Hearing, 1996	AC
1.360	177.6	Parks and Kelley, 1928	DH
1.140	178.5	Maass and Walbauer, 1925	DH
1.360	177.6	Parks and Kelley, 1925	DH

Entropy of fusion

Δ_fusS (cal/mol*K)	Temperature (K)	Reference	Comment
7.734	176.62	Kelley, 1929	DH
7.65	177.6	Parks and Kelley, 1928	DH
6.38	178.5	Maass and Walbauer, 1925	DH
7.655	177.6	Parks and Kelley, 1925	DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Reactions 1 to 50

+ Acetone = ( • Acetone )

By formula: Cl^- + C₃H₆O = (Cl^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14. ± 2.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	18.2	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Δ_rS°	19.6	cal/mol*K	PHPMS	French, Ikuta, et al., 1982	gas phase; M
Δ_rS°	17.1	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
Δ_rS°	19.7	cal/mol*K	N/A	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.08 ± 0.20	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
Δ_rG°	7.30	kcal/mol	TDAs	Hiraoka, Morise, et al., 1986	gas phase; B
Δ_rG°	8.80 ± 0.30	kcal/mol	TDAs	Sieck, 1985	gas phase; B
Δ_rG°	8.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Δ_rG°	7.9 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B

C₃H₇O⁺ + Acetone = (C₃H₇O⁺ • Acetone )

By formula: C₃H₇O⁺ + C₃H₆O = (C₃H₇O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.7	kcal/mol	PHPMS	Meot-Ner (Mautner) and Sieck, 1991	gas phase; M
Δ_rH°	30.0	kcal/mol	PHPMS	Szulejko and McMahon, 1991	gas phase; M
Δ_rH°	29.6	kcal/mol	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rH°	31.5	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Δ_rH°	30.1	kcal/mol	PHPMS	Lau, Saluja, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.2	cal/mol*K	PHPMS	Meot-Ner (Mautner) and Sieck, 1991	gas phase; M
Δ_rS°	30.6	cal/mol*K	PHPMS	Szulejko and McMahon, 1991	gas phase; M
Δ_rS°	29.3	cal/mol*K	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rS°	30.9	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Δ_rS°	30.4	cal/mol*K	PHPMS	Lau, Saluja, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₃H₇O₂⁺ + Acetone = (C₃H₇O₂⁺ • Acetone )

By formula: C₃H₇O₂⁺ + C₃H₆O = (C₃H₇O₂⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.0	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.4	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₄H₉O⁺ + Acetone = (C₄H₉O⁺ • Acetone )

By formula: C₄H₉O⁺ + C₃H₆O = (C₄H₉O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.0	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.6	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.9	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₄H₉O⁺ + Acetone = (C₄H₉O⁺ • Acetone )

By formula: C₄H₉O⁺ + C₃H₆O = (C₄H₉O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.4	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.1	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₅H₁₁O⁺ + Acetone = (C₅H₁₁O⁺ • Acetone )

By formula: C₅H₁₁O⁺ + C₃H₆O = (C₅H₁₁O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.5	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	19.9	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₃H₅O^- + = Acetone

By formula: C₃H₅O^- + H⁺ = C₃H₆O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	368.8 ± 2.1	kcal/mol	D-EA	Brinkman, Berger, et al., 1993	gas phase; B
Δ_rH°	369.0 ± 2.1	kcal/mol	G+TS	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B
Δ_rH°	369.6 ± 2.6	kcal/mol	G+TS	Cumming and Kebarle, 1978	gas phase; B
Δ_rH°	367.6 ± 1.8	kcal/mol	EIAE	Muftakhov, Vasil'ev, et al., 1999	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	361.9 ± 2.0	kcal/mol	IMRE	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B
Δ_rG°	362.4 ± 2.0	kcal/mol	IMRE	Cumming and Kebarle, 1978	gas phase; B

C₃H₉Si⁺ + Acetone = (C₃H₉Si⁺ • Acetone )

By formula: C₃H₉Si⁺ + C₃H₆O = (C₃H₉Si⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	45.0	kcal/mol	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.4	cal/mol*K	N/A	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
31.2	468.	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

+ Acetone = ( • Acetone )

By formula: Na⁺ + C₃H₆O = (Na⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.2 ± 1.0	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	30.8 ± 0.5	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	See 96KLA/AND?; RCD
Δ_rH°	24.4	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD
Δ_rH°	33.4 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21000.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	See 96KLA/AND?; RCD
Δ_rS°	26.1	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
24.1	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Cu⁺ • C₃H₆O) + C₃H₆O = (Cu⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	50.2 ± 1.7	kcal/mol	CIDT	Chu, 2002	RCD
Δ_rH°	15.5	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.0	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

+ Acetone = ( • Acetone )

By formula: Cu⁺ + C₃H₆O = (Cu⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.5 ± 1.0	kcal/mol	CIDT	Chu, 2002	RCD
Δ_rH°	14.9	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.4	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

+ = 2 + Acetone

By formula: H₂O + C₅H₁₂O₂ = 2CH₄O + C₃H₆O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	4.86 ± 0.01	kcal/mol	Cm	Wiberg, Morgan, et al., 1994	liquid phase; ALS
Δ_rH°	4.88 ± 0.01	kcal/mol	Cm	Wiberg and Squires, 1979	liquid phase; Heat of hydrolysis; ALS
Δ_rH°	4.8836 ± 0.0067	kcal/mol	Cm	Wiberg and Squires, 1979, 2	liquid phase; solvent: Water; Hydrolysis; ALS
Δ_rH°	-3.95 ± 0.05	kcal/mol	Cm	Stern and Dorer, 1962	liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 3.69 ± 0.05 kcal/mol; Heat of hydrolysis; ALS

C₃H₉Sn⁺ + Acetone = (C₃H₉Sn⁺ • Acetone )

By formula: C₃H₉Sn⁺ + C₃H₆O = (C₃H₉Sn⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37.4	kcal/mol	PHPMS	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.9	cal/mol*K	N/A	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.2	kcal/mol	PHPMS	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

( • 4 Acetone ) + Acetone = ( • 5 Acetone )

By formula: (H₄N⁺ • 4C₃H₆O) + C₃H₆O = (H₄N⁺ • 5C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.1	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	N/A	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	215.	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; Entropy change calculated or estimated; M

CN^- + Acetone = (CN^- • Acetone )

By formula: CN^- + C₃H₆O = (CN^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.7 ± 3.5	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.5	cal/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.0 ± 2.3	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (Cl^- • 2C₃H₆O) + C₃H₆O = (Cl^- • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.4 ± 2.0	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.	cal/mol*K	N/A	Hiraoka, Takimoto, et al., 1986	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.8 ± 4.5	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; Entropy estimated; B

+ Acetone =

By formula: H₂ + C₃H₆O = C₃H₈O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-16.43 ± 0.10	kcal/mol	Cm	Wiberg, Crocker, et al., 1991	liquid phase; ALS
Δ_rH°	-13.20	kcal/mol	Eqk	Buckley and Herington, 1965	gas phase; ALS
Δ_rH°	-13.24 ± 0.10	kcal/mol	Chyd	Dolliver, Gresham, et al., 1938	gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -13.4 ± 0.1 kcal/mol; At 355 °K; ALS

+ Acetone = ( • Acetone )

By formula: C₂H₃O₂^- + C₃H₆O = (C₂H₃O₂^- • C₃H₆O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.7 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.9	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	9.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Cl^- • C₃H₆O) + C₃H₆O = (Cl^- • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.5 ± 1.0	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.3	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.4 ± 2.2	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; B

C₆H₅NO₂^- + Acetone = (C₆H₅NO₂^- • Acetone )

By formula: C₆H₅NO₂^- + C₃H₆O = (C₆H₅NO₂^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.20 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.3	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.40 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B

+ Acetone = ( • Acetone )

By formula: NO₂^- + C₃H₆O = (NO₂^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.90 ± 0.10	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.9	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.20 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B

(CAS Reg. No. 15520-32-8 • 4294967295 Acetone ) + Acetone = CAS Reg. No. 15520-32-8

By formula: (CAS Reg. No. 15520-32-8 • 4294967295C₃H₆O) + C₃H₆O = CAS Reg. No. 15520-32-8

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.6 ± 1.0	kcal/mol	N/A	Ramond, Davico, et al., 2000	gas phase; B
Δ_rH°	3.6 ± 2.2	kcal/mol	Ther	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B

+ Acetone = ( • Acetone )

By formula: C₅H₅^- + C₃H₆O = (C₅H₅^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.5 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.8	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

+ Acetone = ( • Acetone )

By formula: C₄H₄N^- + C₃H₆O = (C₄H₄N^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.5	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (K⁺ • 2C₃H₆O) + C₃H₆O = (K⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.	kcal/mol	HPMS	Sunner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.	cal/mol*K	HPMS	Sunner, 1984	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
9.2	293.	ES/HPMS	Blades, Klassen, et al., 1995	gas phase; M

(C₃H₇O⁺ • 2 Acetone ) + Acetone = (C₃H₇O⁺ • 3 Acetone )

By formula: (C₃H₇O⁺ • 2C₃H₆O) + C₃H₆O = (C₃H₇O⁺ • 3C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.5	kcal/mol	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.0	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M

(C₃H₇O⁺ • Acetone ) + Acetone = (C₃H₇O⁺ • 2 Acetone )

By formula: (C₃H₇O⁺ • C₃H₆O) + C₃H₆O = (C₃H₇O⁺ • 2C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.2	kcal/mol	PHPMS	Hiraoka, Morise, et al., 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.0	cal/mol*K	PHPMS	Hiraoka, Morise, et al., 1986	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (C₂H₃O₂^- • C₃H₆O) + C₃H₆O = (C₂H₃O₂^- • 2C₃H₆O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.8	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.9	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M

CH₆N⁺ + Acetone = (CH₆N⁺ • Acetone )

By formula: CH₆N⁺ + C₃H₆O = (CH₆N⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.0	kcal/mol	PHPMS	Meot-Ner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.2	cal/mol*K	PHPMS	Meot-Ner, 1984	gas phase; M

C₃H₅O^- + Acetone = (C₃H₅O^- • Acetone )

By formula: C₃H₅O^- + C₃H₆O = (C₃H₅O^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	>25.90	kcal/mol	IMRB	Sheldon and Bowie, 1983	gas phase; MeOH..F- + Me2CO ->; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	>19.70	kcal/mol	IMRB	Sheldon and Bowie, 1983	gas phase; MeOH..F- + Me2CO ->; B

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Al⁺ • C₃H₆O) + C₃H₆O = (Al⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.3	kcal/mol	HPMS	Bauschlicher, Bouchard, et al., 1991	gas phase; laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.7	cal/mol*K	HPMS	Bauschlicher, Bouchard, et al., 1991	gas phase; laser desorption; M

+ Acetone = ( • Acetone )

By formula: NO^- + C₃H₆O = (NO^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.0	kcal/mol	ICR	Reents and Freiser, 1981	gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M

+ Acetone = ( • Acetone )

By formula: K⁺ + C₃H₆O = (K⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.4	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD
Δ_rH°	26.	kcal/mol	HPMS	Sunner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.	cal/mol*K	HPMS	Sunner, 1984	gas phase; M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (Na⁺ • 2C₃H₆O) + C₃H₆O = (Na⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.0	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • 3 Acetone ) + Acetone = ( • 4 Acetone )

By formula: (Na⁺ • 3C₃H₆O) + C₃H₆O = (Na⁺ • 4C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.3	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Na⁺ • C₃H₆O) + C₃H₆O = (Na⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.2 ± 0.1	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.6	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (H₄N⁺ • 2C₃H₆O) + C₃H₆O = (H₄N⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.8	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • 3 Acetone ) + Acetone = ( • 4 Acetone )

By formula: (H₄N⁺ • 3C₃H₆O) + C₃H₆O = (H₄N⁺ • 4C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.1	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (H₄N⁺ • C₃H₆O) + C₃H₆O = (H₄N⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.3	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.9	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (C₄H₄N^- • C₃H₆O) + C₃H₆O = (C₄H₄N^- • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.7	kcal/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	19.0	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (C₅H₅^- • C₃H₆O) + C₃H₆O = (C₅H₅^- • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.8	kcal/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	16.4	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M

+ Acetone = ( • Acetone )

By formula: H₄N⁺ + C₃H₆O = (H₄N⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.3	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

+ Acetone = ( • Acetone )

By formula: Li⁺ + C₃H₆O = (Li⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	44.5	kcal/mol	ICR	Staley and Beauchamp, 1975	gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M

C₂H₇OS⁺ + Acetone = (C₂H₇OS⁺ • Acetone )

By formula: C₂H₇OS⁺ + C₃H₆O = (C₂H₇OS⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.1	kcal/mol	PHPMS	Lau, Saluja, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.5	cal/mol*K	PHPMS	Lau, Saluja, et al., 1980	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (K⁺ • C₃H₆O) + C₃H₆O = (K⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.	kcal/mol	HPMS	Sunner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	HPMS	Sunner, 1984	gas phase; M

= + Acetone

By formula: C₃H₈O = H₂ + C₃H₆O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.20	kcal/mol	Eqk	Buckley and Herington, 1965	gas phase; ALS
Δ_rH°	13.514	kcal/mol	Eqk	Kolb and Burwell, 1945	gas phase; ALS

+ Acetone = ( • Acetone )

By formula: Mg⁺ + C₃H₆O = (Mg⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	67. ± 5.	kcal/mol	ICR	Operti, Tews, et al., 1988	gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M

+ = Acetone +

By formula: HBr + C₃H₅BrO = C₃H₆O + Br₂

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.4 ± 2.0	kcal/mol	Eqk	King, Golden, et al., 1971	gas phase; Heat of bromination at 516-618 K; ALS

+ Acetone =

By formula: C₂H₂Cl₂OS + C₃H₆O = C₅H₈Cl₂O₂S

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-6.5 ± 0.1	kcal/mol	Eqk	Horii, Kawamura, et al., 1972	liquid phase; solvent: CD3COCD3; NMR; ALS

+ Acetone =

By formula: C₂H₄OS + C₃H₆O = C₅H₁₀O₂S

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-6.5 ± 0.2	kcal/mol	Eqk	Horii, Kawamura, et al., 1972	liquid phase; solvent: CD3COCD3; NMR; ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, References, Notes

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
MM - Michael M. Meot-Ner (Mautner)
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₃H₆O⁺ (ion structure unspecified)

Quantity	Value	Units	Method	Reference	Comment
IE (evaluated)	9.703 ± 0.006	eV	N/A	N/A	L
Quantity	Value	Units	Method	Reference	Comment
Proton affinity (review)	194.	kcal/mol	N/A	Hunter and Lias, 1998	HL
Quantity	Value	Units	Method	Reference	Comment
Gas basicity	186.9	kcal/mol	N/A	Hunter and Lias, 1998	HL

Electron affinity determinations

EA (eV)	Method	Reference	Comment
0.00152	EFD	Desfrancois, Abdoul-Carime, et al., 1994	EA: 1.5 meV. Dipole-bound state.; B

Proton affinity at 298K

Proton affinity (kcal/mol)	Reference	Comment
>194.8	Bouchoux, Buisson, et al., 2003	MM
>194.6	Bouchoux, Buisson, et al., 2003	MM
>194.2 ± 0.05	Bouchoux, Buisson, et al., 2003	MM
194.0 ± 0.81	Bouchoux and Salpin, 1999	T = 301K; Re-evaluated thermokinetic parametric fitting by the authors using reference base GBs and PAs from Hunter and Lias, 1998; MM
194.0 ± 0.81	Bouchoux and Salpin, 1999	T = 298K; MM

Gas basicity at 298K

Gas basicity (review) (kcal/mol)	Reference	Comment
187.5	Bouchoux, Buisson, et al., 2003	MM
187.0	Bouchoux, Buisson, et al., 2003	MM
186.9 ± 0.05	Bouchoux, Buisson, et al., 2003	MM
186.9 ± 0.36	Bouchoux and Salpin, 1999	T = 301K; Re-evaluated thermokinetic parametric fitting by the authors using reference base GBs and PAs from Hunter and Lias, 1998; MM
186.9 ± 0.36	Bouchoux and Salpin, 1999	T = 298K; MM

Ionization energy determinations

IE (eV)	Method	Reference	Comment
9.70	PI	Traeger, McLouglin, et al., 1982	LBLHLM
9.694 ± 0.006	PI	Trott, Blais, et al., 1978	LLK
9.68	PI	Staley, Wieting, et al., 1977	LLK
9.709 ± 0.005	PE	Hernandez, Masclet, et al., 1977	LLK
9.71 ± 0.03	EI	Mouvier and Hernandez, 1975	LLK
9.71 ± 0.01	PE	Mouvier and Hernandez, 1975	LLK
9.71	PE	Tam, Yee, et al., 1974	LLK
9.71	S	Ogata, Kitayama, et al., 1974	LLK
9.700 ± 0.001	PI	Knowles and Nicholson, 1974	LLK
9.705	S	Huebner, Celotta, et al., 1973	LLK
9.71 ± 0.01	PI	Potapov and Sorokin, 1972	LLK
9.75 ± 0.025	PE	Johnstone and Mellon, 1972	LLK
9.72	PE	Brundle, Robin, et al., 1972	LLK
9.74	EI	Johnstone, Mellon, et al., 1971	LLK
9.71 ± 0.01	PE	Cocksey, Eland, et al., 1971	LLK
9.74 ± 0.03	EI	Johnstone, Mellon, et al., 1970	RDSH
9.68	PE	Dewar and Worley, 1969	RDSH
9.71 ± 0.01	PI	Potapov, Filyugina, et al., 1968	RDSH
9.7 ± 0.1	EI	Dorman, 1965	RDSH
9.68 ± 0.02	PI	Murad and Inghram, 1964	RDSH
9.67	PE	Al-Joboury and Turner, 1964	RDSH
9.71 ± 0.03	PI	Vilesov, 1960	RDSH
9.71 ± 0.03	PI	Vilesov and Terenin, 1957	RDSH
9.69 ± 0.01	PI	Watanabe, 1954	RDSH
9.705	S	Watanabe, 1954	RDSH
9.8	PE	Bieri, Asbrink, et al., 1982	Vertical value; LBLHLM
9.72	PE	Kobayashi, 1978	Vertical value; LLK
9.68	PE	Benoit and Harrison, 1977	Vertical value; LLK
9.71 ± 0.02	PE	Young and Cheng, 1976	Vertical value; LLK
9.5	PE	Rao, 1975	Vertical value; LLK
9.70	PE	Kimura, Katsumata, et al., 1975	Vertical value; LLK
9.709	PE	Aue, Webb, et al., 1975	Vertical value; LLK
9.71	PE	Kelder, Cerfontain, et al., 1974	Vertical value; LLK
9.72	PE	Hentrich, Gunkel, et al., 1974	Vertical value; LLK

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
CH₃⁺	15.61	?	PE	Powis and Danby, 1979	LLK
CH₃⁺	15.2	?	EI	Majer, Olavesen, et al., 1971	LLK
CH₃⁺	14.93	?	EI	Potzinger and Bunau, 1969	RDSH
CH₃⁺	15.36	?	EI	Haney and Franklin, 1969	RDSH
C₂H₂O⁺	10.7 ± 0.1	CH₄	EI	Shigorin, Filyugina, et al., 1966	RDSH
C₂H₃⁺	16.9	?	EI	Kanomata, 1961	RDSH
C₂H₃O⁺	10.38	CH₃	PI	Traeger, McLouglin, et al., 1982	LBLHLM
C₂H₃O⁺	12.22	CH₃	PE	Powis and Danby, 1979	LLK
C₂H₃O⁺	10.52 ± 0.02	CH₃	PI	Trott, Blais, et al., 1978	LLK
C₂H₃O⁺	10.36	CH₃	PI	Staley, Wieting, et al., 1977	LLK
C₂H₃O⁺	10.30	CH₃	EI	Mouvier and Hernandez, 1975	LLK
C₂H₃O⁺	10.42 ± 0.03	CH₃	PI	Potapov and Sorokin, 1972	LLK
C₂H₃O⁺	10.28 ± 0.05	CH₃	EI	Johnstone and Mellon, 1972	LLK
C₂H₃O⁺	11.3	CH₃	EI	Majer, Olavesen, et al., 1971	LLK
C₂H₃O⁺	10.28	CH₃	EI	Johnstone, Mellon, et al., 1970	RDSH
C₂H₃O⁺	10.42	CH₃	PI	Potapov, Filyugina, et al., 1968	RDSH
C₂H₃O⁺	10.2 ± 0.1	CH₃	EI	Dorman, 1965	RDSH
C₂H₃O⁺	10.37	CH₃	PI	Murad and Inghram, 1964, 2	RDSH
C₃H₄O⁺	15.2 ± 0.15	H₂	EI	Shigorin, Filyugina, et al., 1966	RDSH
C₃H₅O⁺	13.1 ± 0.2	H	EI	Potapov and Shigorin, 1966	RDSH

De-protonation reactions

C₃H₅O^- + = Acetone

By formula: C₃H₅O^- + H⁺ = C₃H₆O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	368.8 ± 2.1	kcal/mol	D-EA	Brinkman, Berger, et al., 1993	gas phase; B
Δ_rH°	369.0 ± 2.1	kcal/mol	G+TS	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B
Δ_rH°	369.6 ± 2.6	kcal/mol	G+TS	Cumming and Kebarle, 1978	gas phase; B
Δ_rH°	367.6 ± 1.8	kcal/mol	EIAE	Muftakhov, Vasil'ev, et al., 1999	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	361.9 ± 2.0	kcal/mol	IMRE	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B
Δ_rG°	362.4 ± 2.0	kcal/mol	IMRE	Cumming and Kebarle, 1978	gas phase; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

Data compiled as indicated in comments:
RCD - Robert C. Dunbar
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

+ Acetone = ( • Acetone )

By formula: Ag⁺ + C₃H₆O = (Ag⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.2 ± 4.5	kcal/mol	RAK	Ho, Yang, et al., 1997	RCD

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Al⁺ • C₃H₆O) + C₃H₆O = (Al⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.3	kcal/mol	HPMS	Bauschlicher, Bouchard, et al., 1991	gas phase; laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.7	cal/mol*K	HPMS	Bauschlicher, Bouchard, et al., 1991	gas phase; laser desorption; M

CH₆N⁺ + Acetone = (CH₆N⁺ • Acetone )

By formula: CH₆N⁺ + C₃H₆O = (CH₆N⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.0	kcal/mol	PHPMS	Meot-Ner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.2	cal/mol*K	PHPMS	Meot-Ner, 1984	gas phase; M

CN^- + Acetone = (CN^- • Acetone )

By formula: CN^- + C₃H₆O = (CN^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.7 ± 3.5	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.5	cal/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.0 ± 2.3	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

C₂H₃O⁺ + Acetone = (C₂H₃O⁺ • Acetone )

By formula: C₂H₃O⁺ + C₃H₆O = (C₂H₃O⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.5	kcal/mol	PI	Trott, Blais, et al., 1978	gas phase; M

+ Acetone = ( • Acetone )

By formula: C₂H₃O₂^- + C₃H₆O = (C₂H₃O₂^- • C₃H₆O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.7 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.9	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	9.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (C₂H₃O₂^- • C₃H₆O) + C₃H₆O = (C₂H₃O₂^- • 2C₃H₆O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.8	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.9	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M

C₂H₇OS⁺ + Acetone = (C₂H₇OS⁺ • Acetone )

By formula: C₂H₇OS⁺ + C₃H₆O = (C₂H₇OS⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.1	kcal/mol	PHPMS	Lau, Saluja, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.5	cal/mol*K	PHPMS	Lau, Saluja, et al., 1980	gas phase; M

C₃H₅O⁺ + Acetone = (C₃H₅O⁺ • Acetone )

By formula: C₃H₅O⁺ + C₃H₆O = (C₃H₅O⁺ • C₃H₆O)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
8.3	295.	FA	Mackay, Rakshit, et al., 1982	gas phase; M

C₃H₅O^- + Acetone = (C₃H₅O^- • Acetone )

By formula: C₃H₅O^- + C₃H₆O = (C₃H₅O^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	>25.90	kcal/mol	IMRB	Sheldon and Bowie, 1983	gas phase; MeOH..F- + Me2CO ->; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	>19.70	kcal/mol	IMRB	Sheldon and Bowie, 1983	gas phase; MeOH..F- + Me2CO ->; B

C₃H₆O⁺ + Acetone = (C₃H₆O⁺ • Acetone )

By formula: C₃H₆O⁺ + C₃H₆O = (C₃H₆O⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.4	kcal/mol	PI	Trott, Blais, et al., 1978	gas phase; Δ_rH>; M

C₃H₇O⁺ + Acetone = (C₃H₇O⁺ • Acetone )

By formula: C₃H₇O⁺ + C₃H₆O = (C₃H₇O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.7	kcal/mol	PHPMS	Meot-Ner (Mautner) and Sieck, 1991	gas phase; M
Δ_rH°	30.0	kcal/mol	PHPMS	Szulejko and McMahon, 1991	gas phase; M
Δ_rH°	29.6	kcal/mol	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rH°	31.5	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Δ_rH°	30.1	kcal/mol	PHPMS	Lau, Saluja, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.2	cal/mol*K	PHPMS	Meot-Ner (Mautner) and Sieck, 1991	gas phase; M
Δ_rS°	30.6	cal/mol*K	PHPMS	Szulejko and McMahon, 1991	gas phase; M
Δ_rS°	29.3	cal/mol*K	PHPMS	Hiraoka and Takimoto, 1986	gas phase; M
Δ_rS°	30.9	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Δ_rS°	30.4	cal/mol*K	PHPMS	Lau, Saluja, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

(C₃H₇O⁺ • Acetone ) + Acetone = (C₃H₇O⁺ • 2 Acetone )

By formula: (C₃H₇O⁺ • C₃H₆O) + C₃H₆O = (C₃H₇O⁺ • 2C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.2	kcal/mol	PHPMS	Hiraoka, Morise, et al., 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.0	cal/mol*K	PHPMS	Hiraoka, Morise, et al., 1986	gas phase; M

(C₃H₇O⁺ • 2 Acetone ) + Acetone = (C₃H₇O⁺ • 3 Acetone )

By formula: (C₃H₇O⁺ • 2C₃H₆O) + C₃H₆O = (C₃H₇O⁺ • 3C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.5	kcal/mol	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.0	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M

C₃H₇O₂⁺ + Acetone = (C₃H₇O₂⁺ • Acetone )

By formula: C₃H₇O₂⁺ + C₃H₆O = (C₃H₇O₂⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.0	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.4	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₃H₉Si⁺ + Acetone = (C₃H₉Si⁺ • Acetone )

By formula: C₃H₉Si⁺ + C₃H₆O = (C₃H₉Si⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	45.0	kcal/mol	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.4	cal/mol*K	N/A	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
31.2	468.	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

C₃H₉Sn⁺ + Acetone = (C₃H₉Sn⁺ • Acetone )

By formula: C₃H₉Sn⁺ + C₃H₆O = (C₃H₉Sn⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37.4	kcal/mol	PHPMS	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.9	cal/mol*K	N/A	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.2	kcal/mol	PHPMS	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

+ Acetone = ( • Acetone )

By formula: C₄H₄N^- + C₃H₆O = (C₄H₄N^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.5	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (C₄H₄N^- • C₃H₆O) + C₃H₆O = (C₄H₄N^- • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.7	kcal/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	19.0	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M

C₄H₉O⁺ + Acetone = (C₄H₉O⁺ • Acetone )

By formula: C₄H₉O⁺ + C₃H₆O = (C₄H₉O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.0	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.6	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.9	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₄H₉O⁺ + Acetone = (C₄H₉O⁺ • Acetone )

By formula: C₄H₉O⁺ + C₃H₆O = (C₄H₉O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.4	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.1	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

+ Acetone = ( • Acetone )

By formula: C₅H₅^- + C₃H₆O = (C₅H₅^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.5 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.8	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (C₅H₅^- • C₃H₆O) + C₃H₆O = (C₅H₅^- • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.8	kcal/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	16.4	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M

C₅H₁₁O⁺ + Acetone = (C₅H₁₁O⁺ • Acetone )

By formula: C₅H₁₁O⁺ + C₃H₆O = (C₅H₁₁O⁺ • C₃H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.5	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	19.9	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₆H₅NO₂^- + Acetone = (C₆H₅NO₂^- • Acetone )

By formula: C₆H₅NO₂^- + C₃H₆O = (C₆H₅NO₂^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.20 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.3	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.40 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B

+ Acetone = ( • Acetone )

By formula: Cl^- + C₃H₆O = (Cl^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14. ± 2.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	18.2	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Δ_rS°	19.6	cal/mol*K	PHPMS	French, Ikuta, et al., 1982	gas phase; M
Δ_rS°	17.1	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
Δ_rS°	19.7	cal/mol*K	N/A	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.08 ± 0.20	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
Δ_rG°	7.30	kcal/mol	TDAs	Hiraoka, Morise, et al., 1986	gas phase; B
Δ_rG°	8.80 ± 0.30	kcal/mol	TDAs	Sieck, 1985	gas phase; B
Δ_rG°	8.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Δ_rG°	7.9 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Cl^- • C₃H₆O) + C₃H₆O = (Cl^- • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.5 ± 1.0	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.3	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.4 ± 2.2	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; B

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (Cl^- • 2C₃H₆O) + C₃H₆O = (Cl^- • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.4 ± 2.0	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.	cal/mol*K	N/A	Hiraoka, Takimoto, et al., 1986	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.8 ± 4.5	kcal/mol	TDAs	Hiraoka, Takimoto, et al., 1986	gas phase; Entropy estimated; B

+ Acetone = ( • Acetone )

By formula: Cr⁺ + C₃H₆O = (Cr⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.8 ± 3.3	kcal/mol	RAK	Lin, Chen, et al., 1997	RCD

+ Acetone = ( • Acetone )

By formula: Cu⁺ + C₃H₆O = (Cu⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.5 ± 1.0	kcal/mol	CIDT	Chu, 2002	RCD
Δ_rH°	14.9	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.4	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Cu⁺ • C₃H₆O) + C₃H₆O = (Cu⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	50.2 ± 1.7	kcal/mol	CIDT	Chu, 2002	RCD
Δ_rH°	15.5	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.0	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (Cu⁺ • 2C₃H₆O) + C₃H₆O = (Cu⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.3 ± 0.5	kcal/mol	CIDT	Chu, 2002	RCD

( • 3 Acetone ) + Acetone = ( • 4 Acetone )

By formula: (Cu⁺ • 3C₃H₆O) + C₃H₆O = (Cu⁺ • 4C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.6 ± 1.2	kcal/mol	CIDT	Chu, 2002	RCD

+ Acetone = ( • Acetone )

By formula: H₄N⁺ + C₃H₆O = (H₄N⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.3	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (H₄N⁺ • C₃H₆O) + C₃H₆O = (H₄N⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.3	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.9	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (H₄N⁺ • 2C₃H₆O) + C₃H₆O = (H₄N⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.8	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • 3 Acetone ) + Acetone = ( • 4 Acetone )

By formula: (H₄N⁺ • 3C₃H₆O) + C₃H₆O = (H₄N⁺ • 4C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.1	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; M

( • 4 Acetone ) + Acetone = ( • 5 Acetone )

By formula: (H₄N⁺ • 4C₃H₆O) + C₃H₆O = (H₄N⁺ • 5C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.1	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	N/A	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	215.	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1996	gas phase; Entropy change calculated or estimated; M

+ Acetone = ( • Acetone )

By formula: I^- + C₃H₆O = (I^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.0 ± 1.0	kcal/mol	TDAs	Caldwell, Masucci, et al., 1989	gas phase; B,M

+ Acetone = ( • Acetone )

By formula: K⁺ + C₃H₆O = (K⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.4	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD
Δ_rH°	26.	kcal/mol	HPMS	Sunner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.	cal/mol*K	HPMS	Sunner, 1984	gas phase; M

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (K⁺ • C₃H₆O) + C₃H₆O = (K⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.	kcal/mol	HPMS	Sunner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	HPMS	Sunner, 1984	gas phase; M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (K⁺ • 2C₃H₆O) + C₃H₆O = (K⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.	kcal/mol	HPMS	Sunner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.	cal/mol*K	HPMS	Sunner, 1984	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
9.2	293.	ES/HPMS	Blades, Klassen, et al., 1995	gas phase; M

( • 3 Acetone ) + Acetone = ( • 4 Acetone )

By formula: (K⁺ • 3C₃H₆O) + C₃H₆O = (K⁺ • 4C₃H₆O)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.0	293.	ES/HPMS	Blades, Klassen, et al., 1995	gas phase; M

+ Acetone = ( • Acetone )

By formula: Li⁺ + C₃H₆O = (Li⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	44.5	kcal/mol	ICR	Staley and Beauchamp, 1975	gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M

+ Acetone = ( • Acetone )

By formula: Mg⁺ + C₃H₆O = (Mg⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	67. ± 5.	kcal/mol	ICR	Operti, Tews, et al., 1988	gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M

+ Acetone = ( • Acetone )

By formula: Mn⁺ + C₃H₆O = (Mn⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.0 ± 3.3	kcal/mol	RAK	Lin, Chen, et al., 1997	RCD

+ Acetone = ( • Acetone )

By formula: NO^- + C₃H₆O = (NO^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.0	kcal/mol	ICR	Reents and Freiser, 1981	gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M

+ Acetone = ( • Acetone )

By formula: NO₂^- + C₃H₆O = (NO₂^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.90 ± 0.10	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.9	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.20 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B

+ Acetone = ( • Acetone )

By formula: Na⁺ + C₃H₆O = (Na⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.2 ± 1.0	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	30.8 ± 0.5	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	See 96KLA/AND?; RCD
Δ_rH°	24.4	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD
Δ_rH°	33.4 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21000.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	See 96KLA/AND?; RCD
Δ_rS°	26.1	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
24.1	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD

( • Acetone ) + Acetone = ( • 2 Acetone )

By formula: (Na⁺ • C₃H₆O) + C₃H₆O = (Na⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.2 ± 0.1	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.6	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • 2 Acetone ) + Acetone = ( • 3 Acetone )

By formula: (Na⁺ • 2C₃H₆O) + C₃H₆O = (Na⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.0	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • 3 Acetone ) + Acetone = ( • 4 Acetone )

By formula: (Na⁺ • 3C₃H₆O) + C₃H₆O = (Na⁺ • 4C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.3	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M., Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups, J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]

Chao and Zwolinski, 1976
Chao, J.; Zwolinski, B.J., Ideal gas thermodynamic properties of propanone and 2-butanone, J. Phys. Chem. Ref. Data, 1976, 5, 319-328. [all data]

Buckley and Herington, 1965
Buckley, E.; Herington, E.F.G., Equilibria in some secondary alcohol + hydrogen + ketone systems, Trans. Faraday Soc., 1965, 61, 1618-1625. [all data]

Pennington and Kobe, 1957
Pennington, R.E.; Kobe, K.A., The thermodynamic properties of acetone, J. Am. Chem. Soc., 1957, 79, 300-305. [all data]

Miles and Hunt, 1941
Miles, C.B.; Hunt, H., Heats of combustion. I. The heat of combustion of acetone, J. Phys. Chem., 1941, 45, 1346-1359. [all data]

Chao J., 1986
Chao J., Thermodynamic properties of key organic oxygen compounds in the carbon range C1 to C4. Part 2. Ideal gas properties, J. Phys. Chem. Ref. Data, 1986, 15, 1369-1436. [all data]

Pennington R.E., 1957
Pennington R.E., The thermodynamic properties of acetone, J. Am. Chem. Soc., 1957, 79, 300-305. [all data]

Chao J., 1976
Chao J., Ideal gas thermodynamic properties of propanone and 2-butanone, J. Phys. Chem. Ref. Data, 1976, 5, 319-328. [all data]

Vilcu R., 1975
Vilcu R., Determination of heat capacities of some alcohols and ketones in vapor phase, Rev. Roum. Chim., 1975, 20, 603-609. [all data]

Kabo G.J., 1995
Kabo G.J., Thermodynamic properties, conformation, and phase transitions of cyclopentanol, J. Chem. Thermodyn., 1995, 27, 953-967. [all data]

Bennewitz K., 1938
Bennewitz K., Molar heats of vapor organic compounds, Z. Phys. Chem. (Leipzig), 1938, B39, 126-144. [all data]

Collins B.T., 1949
Collins B.T., The heat capacity of organic vapors. VI. Acetone, J. Am. Chem. Soc., 1949, 71, 2929-2930. [all data]

Guinchant, 1918
Guinchant, M.J., Etude sur la fonction acide dans les derives metheniques et methiniques, Ann. Chem., 1918, 10, 30-84. [all data]

Emery and Benedict, 1911
Emery, A.G.; Benedict, F.G., The heat of combustion of compounds of physiological importance, Am. J. Physiol., 1911, 28, 301-307. [all data]

Kelley, 1929
Kelley, K.K., The heats capacities of isopropyl alcohol and acetone from 16 to 298 °K and the corresponding entropies and free energies, J. Am. Chem. Soc., 1929, 51, 1145-1150. [all data]

Parks, Kelley, et al., 1929
Parks, G.S.; Kelley, K.K.; Huffman, H.M., Thermal data on organic compounds. V. A revision of the entropies and free energies of nineteen organic compounds, J. Am. Chem. Soc., 1929, 51, 1969-1973. [all data]

Parks and Kelley, 1928
Parks, G.S.; Kelley, K.K., The application of the third law of thermodynamics to some organic reactions, J. Phys. Chem., 1928, 32, 734-750. [all data]

Parks and Kelley, 1925
Parks, G.S.; Kelley, K.K., Thermal data on organic compounds. II. The heat capacities of five organic compounds. The entropies and free energies of some homologous series of aliphatic compounds, J. Am. Chem. Soc., 1925, 47, 2089-2097. [all data]

Malhotra and Woolf, 1991
Malhotra, R.; Woolf, L.A., Thermodynamic properties of propanone (acetone) at temperatures from 278 K to 323 K and pressures up to 400 Mpa, J. Chem. Thermodynam., 1991, 23, 867-876. [all data]

Costas, Yao, et al., 1989
Costas, M.; Yao, Z.; Patterson, D., Complex formation and self-association in ternary mixtures, J. Chem. Soc., Faraday Trans., 1989, 1 85(8), 2211-2227. [all data]

Petrov, Peshekhodov, et al., 1989
Petrov, A.N.; Peshekhodov, P.B.; Al'per, G.A., Heat capacity of non-aqueous solutions of non-electrolyts with N,N-dimethylformamide as a base, Sbornik Nauch. Trud., Termodin. Rast. neelect., Ivanovo, Inst. nevod. rast., 1989, Akad. [all data]

Al'per, Peshekhodov, et al., 1986
Al'per, G.A.; Peshekhodov, P.B.; Nikiforov, M.Yu.; Petrov, A.N.; Krestov, G.A., Specific heats and features of the intermolecular interactions in the system chloroform-acetone, Zhur. Obshchei Khim., 1986, 56(8), 1688-1691. [all data]

Costas and Patterson, 1985
Costas, M.; Patterson, D., Heat capacities of water + organic-solvent mixtures, J. Chem. Soc., Faraday Trans. 1, 1985, 81, 2381-2398. [all data]

Costas and Patterson, 1985, 2
Costas, M.; Patterson, D., Self-association of alcohols in inert solvents, J. Chem. Soc., Faraday Trans. 1, 1985, 81, 635-654. [all data]

Saluja, Peacock, et al., 1979
Saluja, P.P.S.; Peacock, L.A.; Fuchs, R., Enthalpies of interaction of aliphatic ketones with polar and nonpolar solvents, J. Am. Chem. Soc., 1979, 101, 1958-1962. [all data]

Deshpande and Bhatagadde, 1971
Deshpande, D.D.; Bhatagadde, L.G., Heat capacities at constant volume, free volumes, and rotational freedom in some liquids, Aust. J. Chem., 1971, 24, 1817-1822. [all data]

Rastorguev and Ganiev, 1967
Rastorguev, Yu.L.; Ganiev, Yu.A., Study of the heat capacity of selected solvents, Izv. Vyssh. Uchebn. Zaved. Neft Gaz. 10, 1967, No.1, 79-82. [all data]

Low and Moelwyn-Hughes, 1962
Low, D.I.R.; Moelwyn-Hughes, E.A., The heat capacities of acetone, methyl iodide and mixtures thereof in the liquid state, Proc. Roy. Soc. (London), 1962, A267, 384-394. [all data]

Staveley, Tupman, et al., 1955
Staveley, L.A.K.; Tupman, W.I.; Hart, K.R., Some thermodynamice properties of the systems benzene + ethylene dichloride, benzene + carbon tetrachloride, acetone + chloroform, and acetone + carbon disulphide, Trans. Faraday Soc., 1955, 51, 323-342. [all data]

Phillip, 1939
Phillip, N.M., Adiabatic and isothermal compressibilities of liquids, Proc. Indian Acad. Sci., 1939, A9, 109-120. [all data]

Trew and Watkins, 1933
Trew, V.C.G.; Watkins, G.M.C., Some physical properties of mixtures of certain organic liquids, Trans. Faraday Soc., 1933, 29, 1310-1318. [all data]

Trew, 1932
Trew, V.C.G., Physical properties of mixtures of acetone and bromoform, Trans. Faraday Soc., 1932, 28, 509-514. [all data]

Mitsukuri and Hara, 1929
Mitsukuri, S.; Hara, K., Specific heats of acetone, methyl-, ethyl-, and n-propyl-alcohols at low temperatures, Bull. Chem. Soc. Japan, 1929, 4, 77-81. [all data]

Williams and Daniels, 1925
Williams, J.W.; Daniels, F., The specific heats of binary mixtures, J. Am. Chem. Soc., 1925, 47, 1490-1503. [all data]

Bramley, 1916
Bramley, A., The study of binary mixtures. Part IV. Heats of reaction and specific heats, J. Chem. Soc. (London), 1916, 109, 496-515. [all data]

von Reis, 1881
von Reis, M.A., Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht, Ann. Physik [3], 1881, 13, 447-464. [all data]

Maass and Walbauer, 1925
Maass, O.; Walbauer, L.J., The specific heats and latent heats of fusion of ice and of several organic compounds, J. Am. Chem. Soc., 1925, 47, 1-9. [all data]

Wilhoit, Chao, et al., 1985
Wilhoit, R.C.; Chao, J.; Hall, K.R., Thermodynamic Properties of Key Organic Compounds in the Carbon Range C1 to C4. Part 1. Properties of Condensed Phases, J. Phys. Chem. Ref. Data, 1985, 14, 1. [all data]

Kelley, 1929, 2
Kelley, K.K., The heat capacities of isopropyl alcohol and acetone from 16 to 298 K and the corresponding entropies and free energies, J. Am. Chem. Soc., 1929, 51, 1145-51. [all data]

Parks and Kelley, 1928, 2
Parks, G.S.; Kelley, K.K., The application of the third law of thermodynamics to some organic reactions, J. Phys. Chem., 1928, 32, 734-50. [all data]

Parks and Kelley, 1925, 2
Parks, G.S.; Kelley, K.K., Thermal Data on Organic Compounds II. The Heat Capacities of Five Organic Compounds. The Entropies and Free Energies of Some Homologous Series of Aliphatic Compounds, J. Am. Chem. Soc., 1925, 47, 2089-97. [all data]

Campbell and Chatterjee, 1969
Campbell, A.N.; Chatterjee, R.M., The critical constants and orthobaric densities of acetone, chloroform benzene, and carbon tetrachloride, Can. J. Chem., 1969, 47, 3893-8. [all data]

Campbell and Chatterjee, 1968
Campbell, A.N.; Chatterjee, R.M., Orthobaric Data of Certain Pure Liquids in the Neighborhood of the Critical Point, Can. J. Chem., 1968, 46, 575-81. [all data]

Kobe, Crawford, et al., 1955
Kobe, K.A.; Crawford, H.R.; Stephenson, R.W., Critical Properties and Vapor Pressures of Some Ketones, Ind. Eng. Chem., 1955, 47, 1767-72. [all data]

Rosenbaum, 1951
Rosenbaum, M., , M.S. Thesis, Univ. Tex., Austin, TX, 1951. [all data]

Herz and Neukirch, 1923
Herz, W.; Neukirch, E., On Knowldge of the Critical State, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1923, 104, 433-50. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Ambrose, Ellender, et al., 1975
Ambrose, D.; Ellender, J.H.; Lees, E.B.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of organic oxygen compounds XXXVIII. Vapour pressures of some aliphatic ketones, The Journal of Chemical Thermodynamics, 1975, 7, 5, 453-472, https://doi.org/10.1016/0021-9614(75)90275-X . [all data]

Mathews, 1926
Mathews, J.H., The accurate measurement of heats of vaporization of liquids, J. Am. Chem. Soc., 1926, 48, 562-576. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Soni, Ramjugernath, et al., 2008
Soni, Minal; Ramjugernath, Deresh; Raal, J. David, Vapor--Liquid Equilibrium for Binary Systems of 2,3-Pentanedione with Diacetyl and Acetone, J. Chem. Eng. Data, 2008, 53, 3, 745-749, https://doi.org/10.1021/je7005924 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Ambrose, Sprake, et al., 1974
Ambrose, D.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of organic oxygen compounds XXXIII. The vapour pressure of acetone, The Journal of Chemical Thermodynamics, 1974, 6, 7, 693-700, https://doi.org/10.1016/0021-9614(74)90119-0 . [all data]

Boublík and Aim, 1972
Boublík, T.; Aim, K., Heats of vaporization of simple non-spherical molecule compounds, Collect. Czech. Chem. Commun., 1972, 37, 11, 3513-3521, https://doi.org/10.1135/cccc19723513 . [all data]

Baliah and Gnanasekaran, 1986
Baliah, V.; Gnanasekaran, K., Search for hydrogen bonding in thiophenols through heats of vaporization measurements, Indian J. Chem., Sect A, 1986, 25, 7, 673. [all data]

Dmitriev, Kachurina, et al., 1986
Dmitriev, Yu.G.; Kachurina, N.S.; Wang, C.H.; Kochubei, V.V., Thermochemical properties of complex glycidol esters, Vestn. L'vov. Politekh. Inst., 1986, 201, 29. [all data]

Castellari, Francesconi, et al., 1984
Castellari, Carlo; Francesconi, Romolo; Comelli, Fabio; Ottani, Stefano, Vapor-liquid equilibria in binary systems containing 1,3-dioxolane at isobaric conditions. 6. Binary mixtures of 1,3-dioxolane with acetone, J. Chem. Eng. Data, 1984, 29, 3, 283-284, https://doi.org/10.1021/je00037a016 . [all data]

Sokolov, Zhilina, et al., 1963
Sokolov, V.V.; Zhilina, L.P.; Mischenko, K.P., Zh. Prikl. Khim. (Leningrad), 1963, 36, 750. [all data]

Brown and Smith, 1957
Brown, I.; Smith, F., Liquid-vapour equilibria viii. The systems acetoke +benzene and acetone +carbon tetrachloride at 45«65533»C, Aust. J. Chem., 1957, 10, 4, 423-621, https://doi.org/10.1071/CH9570423 . [all data]

Felsing and Durban, 1926
Felsing, W.A.; Durban, S.A., THE VAPOR PRESSURES, DENSITIES, AND SOME DERIVED QUANTITIES FOR ACETONE, J. Am. Chem. Soc., 1926, 48, 11, 2885-2893, https://doi.org/10.1021/ja01690a020 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Sieck, 1985
Sieck, L.W., Thermochemistry of Solvation of NO₂^- and C₆H₅NO₂^- by Polar Molecules in the Vapor Phase. Comparison with Cl^- and Variation with Ligand Structure., J. Phys. Chem., 1985, 89, 25, 5552, https://doi.org/10.1021/j100271a049 . [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl^-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl^- = RHCl^-, Can. J. Chem., 1982, 60, 1907. [all data]

Hiraoka, Takimoto, et al., 1986
Hiraoka, K.; Takimoto, H.; Morise, K.; Shoda, T.; Nakamura, S., Ion-Molecule Reactions in Gaseous Acetone, Bull. Chem. Soc. Japan, 1986, 59, 7, 2247, https://doi.org/10.1246/bcsj.59.2247 . [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

Bofdanov and McMahon, 2002
Bofdanov, B.; McMahon, T.B., Structures, Thermochemistry, and Infrared Spectra of Chloride Ion-Fluorinated Acetone Complexes and Neutral Fluorinated Acetones in the Gas Phase: Experiment and Theory, Int. J. Mass Spectrom., 2002, 219, 3, 593-613, https://doi.org/10.1016/S1387-3806(02)00745-5 . [all data]

Hiraoka, Morise, et al., 1986
Hiraoka, K.; Morise, K.; Nishijima, T.; Nakamura, S.; Nakazato, M.; Ohkuma, K., Gas Phase Ion Equilibria Studies of Protons and Chloride Ions in Propanol and Acetone, Int. J. Mass Spectrom. Ion Proc., 1986, 68, 1-2, 99, https://doi.org/10.1016/0168-1176(86)87071-9 . [all data]

Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria, J. Am. Chem. Soc., 1984, 106, 517. [all data]

Meot-Ner (Mautner) and Sieck, 1991
Meot-Ner (Mautner), M.; Sieck, L.W., Proton affinity ladders from variable-temperature equilibrium measurements. 1. A reevaluation of the upper proton affinity range, J. Am. Chem. Soc., 1991, 113, 12, 4448, https://doi.org/10.1021/ja00012a012 . [all data]

Szulejko and McMahon, 1991
Szulejko, J.E.; McMahon, T.B., A Pulsed Electron Beam, Variable Temperature, High Pressure Mass Spectrometric Reevaluation of the Proton Affinity Difference Between 2-Methylpropene and Ammonia, Int. J. Mass Spectrom. Ion Proc., 1991, 109, 279, https://doi.org/10.1016/0168-1176(91)85109-Y . [all data]

Hiraoka and Takimoto, 1986
Hiraoka, K.; Takimoto, H., Gas-Phase Stabilities of Symmetric Proton-Held Dimer Cations, J. Phys. Chem., 1986, 90, 22, 5910, https://doi.org/10.1021/j100280a090 . [all data]

Larson and McMahon, 1982
Larson, J.W.; McMahon, T.B., Formation, Thermochemistry, and Relative Stabilities of Proton - Bound dimers of Oxygen n - Donor Bases from Ion Cyclotron Resonance Solvent - Exchange Equilibria Measurements, J. Am. Chem. Soc., 1982, 104, 23, 6255, https://doi.org/10.1021/ja00387a016 . [all data]

Grimsrud and Kebarle, 1973
Grimsrud, E.P.; Kebarle, P., Gas Phase Ion Equilibria Studies of the Solvation of the Hydrogen Ion by Methanol, Dimethyl Ether and Water. Effect of Hydrogen Bonding, J. Am. Chem. Soc., 1973, 95, 24, 7939, https://doi.org/10.1021/ja00805a002 . [all data]

Lias, Liebman, et al., 1984
Lias, S.G.; Liebman, J.F.; Levin, R.D., Evaluated gas phase basicities and proton affinities of molecules heats of formation of protonated molecules, J. Phys. Chem. Ref. Data, 1984, 13, 695. [all data]

Keesee and Castleman, 1986
Keesee, R.G.; Castleman, A.W., Jr., Thermochemical data on Ggs-phase ion-molecule association and clustering reactions, J. Phys. Chem. Ref. Data, 1986, 15, 1011. [all data]

Lau, Saluja, et al., 1980
Lau, Y.K.; Saluja, P.P.S.; Kebarle, P., The Proton in Dimethyl Sulfoxide and Acetone. Results from Gas - Phase Ion Equilibria Involving (Me2SO)nH+ and (Me2CO)nH+, J. Am. Chem. Soc., 1980, 102, 25, 7429, https://doi.org/10.1021/ja00545a004 . [all data]

Brinkman, Berger, et al., 1993
Brinkman, E.A.; Berger, S.; Marks, J.; Brauman, J.I., Molecular Rotation and the Observation of Dipole-Bound States of Anions, J. Chem. Phys., 1993, 99, 10, 7586, https://doi.org/10.1063/1.465688 . [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P., Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A), Can. J. Chem., 1978, 56, 1. [all data]

Muftakhov, Vasil'ev, et al., 1999
Muftakhov, M.V.; Vasil'ev, Y.V.; Mazunov, V.A., Determination of electron affinity of carbonyl radicals by means of negative ion mass spectrometry, Rapid Commun. Mass Spectrom., 1999, 13, 12, 1104-1108, https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1104::AID-RCM619>3.0.CO;2-C . [all data]

Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J., A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases, Can. J. Chem., 1986, 74, 59. [all data]

Armentrout and Rodgers, 2000
Armentrout, P.B.; Rodgers, M.T., An Absolute Sodium Cation Affinity Scale: Threshold Collision-Induced Dissociation Experiments and ab Initio Theory, J. Phys. Chem A, 2000, 104, 11, 2238, https://doi.org/10.1021/jp991716n . [all data]

Hoyau, Norrman, et al., 1999
Hoyau, S.; Norrman, K.; McMahon, T.B.; Ohanessian, G., A Quantitative Basis for a Scale of Na+ Affinities of Organic and Small Biological Molecules in the Gas Phase, J. Am. Chem. Soc., 1999, 121, 38, 8864, https://doi.org/10.1021/ja9841198 . [all data]

Klassen, Anderson, et al., 1996
Klassen, J.S.; Anderson, S.G.; Blades, A.T.; Kebarle, P., Reaction Enthalpies for M+L = M+ + L, Where M+ = Na+ and K+ and L = Acetamide, N-Methylacetamide, N,N-Dimethylacetamide, Glycine, and Glycylglycine, from Determinations of the Collision-Induced Dissociation Thresholds, J. Phys. Chem., 1996, 100, 33, 14218, https://doi.org/10.1021/jp9608382 . [all data]

Guo, Conklin, et al., 1989
Guo, B.C.; Conklin, B.J.; Castleman, A.W., Thermochemical Properties of Ion Complexes Na+(M)n in the Gas Phase, J. Am. Chem. Soc., 1989, 111, 17, 6506, https://doi.org/10.1021/ja00199a005 . [all data]

McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G., An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions, Chem. Eur. J., 2000, 6, 16, 2931, https://doi.org/10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7 . [all data]

Chu, 2002
Chu, Y., Solvation of Copper Ions by Acetone. Structures and Sequential Binding Energies of Cu+(acetone)x, x=1-4 From Collision-Induced Dissociation and Theoretical Studies, J. Am. Soc. Mass Spectrom., 2002, 13, 5, 453, https://doi.org/10.1016/S1044-0305(02)00355-0 . [all data]

El-Shall, Schriver, et al., 1989
El-Shall, M.S.; Schriver, K.E.; Whetten, R.L.; Meot-Ner (Mautner), M., Ion/Molecule Clustering Thermochemistry by Laser Ionization High - Pressure Mass Spectrometry, J. Phys. Chem., 1989, 93, 24, 7969, https://doi.org/10.1021/j100361a002 . [all data]

Wiberg, Morgan, et al., 1994
Wiberg, K.B.; Morgan, K.M.; Maltz, H., Thermochemistry of carbonyl reactions. 6. A study of hydration equilibria, J. Am. Chem. Soc., 1994, 116, 11067-11077. [all data]

Wiberg and Squires, 1979
Wiberg, K.B.; Squires, R.R., Thermodynamics of hydrolysis aliphatic ketals. An entropy component of steric effects, J. Am. Chem. Soc., 1979, 101, 5512-5515. [all data]

Wiberg and Squires, 1979, 2
Wiberg, K.B.; Squires, R.R., A microprocessor-controlled system for precise measurement of temperature changes. Determination of the enthalpies of hydrolysis of some polyoxygenated hydrocarbons, J. Chem. Thermodyn., 1979, 11, 773-786. [all data]

Stern and Dorer, 1962
Stern, J.H.; Dorer, F.H., Standard heats of formation of 2,2-Dimethoxypropane (1), and 2,2 -Diethoxypropane (1). Group additivity theory and calculated heats of formation and five ketals, J. Phys. Chem., 1962, 66, 97-99. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Stone and Splinter, 1984
Stone, J.A.; Splinter, D.E., A high-pressure mass spectrometric study of the binding of (CH₃)₃Sn⁺ to lewis bases in the gas phase, Int. J. Mass Spectrom. Ion Processes, 1984, 59, 169. [all data]

Meot-Ner (Mautner), Sieck, et al., 1996
Meot-Ner (Mautner), M.; Sieck, L.W.; Liebman, J.F.; Scheiner, S., Complexing of the Ammonium Ion by Polyethers. Comparative Complexing Thermochemistry of Ammonium, Hydronium, and Alkali Cations, J. Phys. Chem., 1996, 100, 16, 6445, https://doi.org/10.1021/jp9514943 . [all data]

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids, J. Am. Chem. Soc., 1987, 109, 6230. [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO₂-, NO₃-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]

Dolliver, Gresham, et al., 1938
Dolliver, M.A.; Gresham, T.L.; Kistiakowsky, G.B.; Smith, E.A.; Vaughan, W.E., Heats of organic reactions. VI. Heats of hydrogenation of some oxygen-containing compounds, J. Am. Chem. Soc., 1938, 60, 440-450. [all data]

Meot-ner, 1988
Meot-ner, M., Ionic Hydrogen Bond and Ion Solvation. ₆. Interaction Energies of the Acetate Ion with Organic Molecules. Comparison of CH₃COO^- with Cl^-, CN^-, and SH^-, J. Am. Chem. Soc., 1988, 110, 12, 3854, https://doi.org/10.1021/ja00220a022 . [all data]

Ramond, Davico, et al., 2000
Ramond, T.M.; Davico, G.E.; Schwartz, R.L.; Lineberger, W.C., Vibronic structure of alkoxy radicals via photoelectron spectroscopy, J. Chem. Phys., 2000, 112, 3, 1158-1169, https://doi.org/10.1063/1.480767 . [all data]

Meot-ner, 1988, 2
Meot-ner, M., The Ionic Hydrogen Bond and Solvation. 7. Interaction Energies of Carbanions with Solvent Molecules, J. Am. Chem. Soc., 1988, 110, 12, 3858, https://doi.org/10.1021/ja00220a022 . [all data]

Sunner, 1984
Sunner, J. Kebarle, Ion - Solvent Molecule Interactions in the Gas Phase. The Potassium Ion and Me2SO, DMA, DMF, and Acetone, J. Am. Chem. Soc., 1984, 106, 21, 6135, https://doi.org/10.1021/ja00333a002 . [all data]

Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P., Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I, J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019 . [all data]

Meot-Ner, 1984
Meot-Ner, (Mautner)M., The Ionic Hydrogen Bond and Ion Solvation. 1. -NH+ O-, -NH+ N- and -OH+ O- Bonds. Correlations with Proton Affinity. Deviations Due to Structural Effects, J. Am. Chem. Soc., 1984, 106, 5, 1257, https://doi.org/10.1021/ja00317a015 . [all data]

Sheldon and Bowie, 1983
Sheldon, J.C.; Bowie, J.H., The Reactions of {F^-..HOMe} and {MeCO₂^-..HF} Negative Ions with Acetaldehyde and Acetone., Aust. J. Chem., 1983, 36, 2, 289, https://doi.org/10.1071/CH9830289 . [all data]

Bauschlicher, Bouchard, et al., 1991
Bauschlicher, C.W.; Bouchard, F.; Hepburn, J.W.; McMahon, T.B.; Surjasasmita, I.; Roth, L.M.; Gord, J.R., On the Structure of Al(Acetone)2+, Int. J. Mass Spectrom. Ion Proc., 1991, 109, 15, https://doi.org/10.1016/0168-1176(91)85094-3 . [all data]

Reents and Freiser, 1981
Reents, W.D.; Freiser, B.S., Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes, J. Am. Chem. Soc., 1981, 103, 2791. [all data]

Farid and McMahon, 1978
Farid, R.; McMahon, T.B., Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy, Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0 . [all data]

Staley and Beauchamp, 1975
Staley, R.H.; Beauchamp, J.L., Intrinsic Acid - Base Properties of Molecules. Binding Energies of Li+ to pi - and n - Donor Bases, J. Am. Chem. Soc., 1975, 97, 20, 5920, https://doi.org/10.1021/ja00853a050 . [all data]

Dzidic and Kebarle, 1970
Dzidic, I.; Kebarle, P., Hydration of the Alkali Ions in the Gas Phase. Enthalpies and Entropies of Reactions M+(H2O)n-1 + H2O = M+(H2O)n, J. Phys. Chem., 1970, 74, 7, 1466, https://doi.org/10.1021/j100702a013 . [all data]

Kolb and Burwell, 1945
Kolb, H.J.; Burwell, R.L., Jr., Equilibrium in the dehydrogenation of secondary propyl and butyl alcohols, J. Am. Chem. Soc., 1945, 67, 1084-1088. [all data]

Operti, Tews, et al., 1988
Operti, L.; Tews, E.C.; Freiser, B.S., Determination of Gas-Phase Ligand Binding Energies to Mg+ by FTMS Techniques, J. Am. Chem. Soc., 1988, 110, 12, 3847, https://doi.org/10.1021/ja00220a020 . [all data]

King, Golden, et al., 1971
King, K.D.; Golden, D.M.; Benson, S.W., Thermochemistry of the gas-phase equilibrium CH₃COCH₃ + Br₂ = CH₃COCH₂Br + HBr. The enthalpy of formation of bromoacetone, J. Chem. Thermodyn., 1971, 3, 129-134. [all data]

Horii, Kawamura, et al., 1972
Horii, T.; Kawamura, S.; Tsurugi, J., A NMR study of the thioacetic acid-acetone mixture, Bull. Chem. Soc. Jpn., 1972, 45, 2200-2202. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Desfrancois, Abdoul-Carime, et al., 1994
Desfrancois, C.; Abdoul-Carime, H.; Khelifa, N.; Schermann, J.P., Fork 1/r to 1/r2 Potentials: Electron Exchange between Rydberg Atoms and Polar Molecules, Phys. Rev. Lett., 1994, 73, 18, 2436, https://doi.org/10.1103/PhysRevLett.73.2436 . [all data]

Bouchoux, Buisson, et al., 2003
Bouchoux, G.; Buisson, D.A.; Bourcier, S.; Sablier, M., Application of the kinetic method to bifunctional bases. ESI tandem quadrupole experiments, Int. J. Mass Spectrom., 2003, 228, 1035. [all data]

Bouchoux and Salpin, 1999
Bouchoux, J.; Salpin, J.Y., Re-evaluated gas-phase basicity and proton affinity data from the thermokinetic method, Rapid Com. Mass Spectrom., 1999, 13, 932. [all data]

Traeger, McLouglin, et al., 1982
Traeger, J.C.; McLouglin, R.G.; Nicholson, A.J.C., Heat of formation for acetyl cation in the gas phase, J. Am. Chem. Soc., 1982, 104, 5318. [all data]

Trott, Blais, et al., 1978
Trott, W.M.; Blais, N.C.; Walters, E.A., Molecular beam photoionization study of acetone and acetone-d₆, J. Chem. Phys., 1978, 69, 3150. [all data]

Staley, Wieting, et al., 1977
Staley, R.H.; Wieting, R.D.; Beauchamp, J.L., Carbenium ion stabilities in the gas phase and solution. An ion cyclotron resonance study of bromide transfer reactions involving alkali ions, alkyl carbenium ions, acyl cations and cyclic halonium ions, J. Am. Chem. Soc., 1977, 99, 5964. [all data]

Hernandez, Masclet, et al., 1977
Hernandez, R.; Masclet, P.; Mouvier, G., Spectroscopie de photoelectrons d'aldehydes et de cetones aliphatiques, J. Electron Spectrosc. Relat. Phenom., 1977, 10, 333. [all data]

Mouvier and Hernandez, 1975
Mouvier, G.; Hernandez, R., Ionisation and appearance potentials of alkylketones, Org. Mass Spectrom., 1975, 10, 958. [all data]

Tam, Yee, et al., 1974
Tam, W.-C.; Yee, D.; Brion, C.E., Photoelectron spectra of some aldehydes and ketones, J. Electron Spectrosc. Relat. Phenom., 1974, 4, 77. [all data]

Ogata, Kitayama, et al., 1974
Ogata, H.; Kitayama, J.; Koto, M.; Kojima, S.; Nihei, Y.; Kamada, H., Vacuum ultraviolet absorption and photoelectron spectra of aliphatic ketones, Bull. Chem. Soc. Jpn., 1974, 47, 958. [all data]

Knowles and Nicholson, 1974
Knowles, D.J.; Nicholson, A.J.C., Ionization energies of formic and acetic acid monomers, J. Chem. Phys., 1974, 60, 1180. [all data]

Huebner, Celotta, et al., 1973
Huebner, R.H.; Celotta, R.J.; Mielczarek, S.R.; Kuyatt, C.E., Electron energy loss spectroscopy of acetone vapor, J. Chem. Phys., 1973, 59, 5434. [all data]

Potapov and Sorokin, 1972
Potapov, V.K.; Sorokin, V.V., Kinetic energies of products of dissociative photoionization of molecules. I. Aliphatic ketones and alcohols, Khim. Vys. Energ., 1972, 6, 387. [all data]

Johnstone and Mellon, 1972
Johnstone, R.A.W.; Mellon, F.A., Electron-impact ionization and appearance potentials, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1209. [all data]

Brundle, Robin, et al., 1972
Brundle, C.R.; Robin, M.B.; Kuebler, N.A.; Basch, H., Perfluoro effect in photoelectron spectroscopy. I. Nonaromatic molecules, J. Am. Chem. Soc., 1972, 94, 1451. [all data]

Johnstone, Mellon, et al., 1971
Johnstone, R.A.W.; Mellon, F.A.; Ward, S.D., On-line computer methods used in conjunction with the measurement of ionization appearance potentials, Adv. Mass Spectrom., 1971, 5, 334. [all data]

Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J., The effect of alkyl substitution on ionisation potential, J. Chem. Soc., 1971, (B), 790. [all data]

Johnstone, Mellon, et al., 1970
Johnstone, R.A.W.; Mellon, F.A.; Ward, S.D., Online acquisition of ionization efficiency data, Intern. J. Mass Spectrom. Ion Phys., 1970, 5, 241. [all data]

Dewar and Worley, 1969
Dewar, M.J.S.; Worley, S.D., Photoelectron spectra of molecules. I. Ionization potentials of some organic molecules and their interpretation, J. Chem. Phys., 1969, 50, 654. [all data]

Potapov, Filyugina, et al., 1968
Potapov, V.K.; Filyugina, A.D.; Shigorin, D.N.; Ozerova, G.A., Photoionization of some compounds containing the carbonyl and amino groups, Dokl. Akad. Nauk SSSR, 1968, 180, 398, In original 352. [all data]

Dorman, 1965
Dorman, F.H., Fragment ions from CH₃CHO and (CH₃)₂CO by electron impact, J. Chem. Phys., 1965, 42, 65. [all data]

Murad and Inghram, 1964
Murad, E.; Inghram, M.G., Photoionization of aliphatic ketones, J. Chem. Phys., 1964, 40, 3263. [all data]

Al-Joboury and Turner, 1964
Al-Joboury, M.I.; Turner, D.W., Molecular photoelectron spectroscopy. Part II. A summary of ionization potentials, J. Chem. Soc., 1964, 4434. [all data]

Vilesov, 1960
Vilesov, F.I., The photoionization of vapors of compounds whose molecules contain carbonyl groups, Dokl. Phys. Chem., 1960, 132, 521, In original 1332. [all data]

Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N., The photoionization of the vapors of certain organic compounds, Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]

Watanabe, 1954
Watanabe, K., Photoionization and total absorption cross section of gases. I. Ionization potentials of several molecules. Cross sections of NH₃ and NO, J. Chem. Phys., 1954, 22, 1564. [all data]

Bieri, Asbrink, et al., 1982
Bieri, G.; Asbrink, L.; Von Niessen, W., 30.4-nm He(II) photoelectron spectra of organic molecules, J. Electron Spectrosc. Relat. Phenom., 1982, 27, 129. [all data]

Kobayashi, 1978
Kobayashi, T., A new rule for photoelectron angular distributions of molecules, Phys. Lett. A, 1978, 69, 31. [all data]

Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G., Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules, J. Am. Chem. Soc., 1977, 99, 3980. [all data]

Young and Cheng, 1976
Young, V.Y.; Cheng, K.L., The photoelectron spectra of halogen substituted acetones, J. Chem. Phys., 1976, 65, 3187. [all data]

Rao, 1975
Rao, C.N.R., Lone-pair ionization bands of chromophores in the photoelectron spectra of organic molecules, Indian J. Chem., 1975, 13, 950. [all data]

Kimura, Katsumata, et al., 1975
Kimura, K.; Katsumata, S.; Yamazaki, T.; Wakabayashi, H., UV photoelectron spectra and sum rule consideration; out-of-plane orbitals of unsaturated compounds with planar-skeleton structure, J. Electron Spectrosc. Relat. Phenom., 1975, 6, 41. [all data]

Aue, Webb, et al., 1975
Aue, D.H.; Webb, H.M.; Bowers, M.T., Proton affinities, ionization potentials, and hydrogen affinities of nitrogen and oxygen bases. Hybridization effects, J. Am. Chem. Soc., 1975, 97, 4137. [all data]

Kelder, Cerfontain, et al., 1974
Kelder, J.; Cerfontain, H.; Higginson, B.R.; Lloyd, D.R., Photoelectron and ultraviolet absorption spectra of cyclopropyl conjugated 1,2-diketones, Tetrahedron Lett., 1974, 739. [all data]

Hentrich, Gunkel, et al., 1974
Hentrich, G.; Gunkel, E.; Klessinger, M., Photoelektronenspektren organischer verbindungen. 4. Photoelektronenspektren ungesattigter carbonylverbindungen, J. Mol. Struct., 1974, 21, 231. [all data]

Powis and Danby, 1979
Powis, I.; Danby, C.J., The unimolecular fragmentation of energy-selected acetone ions, Int. J. Mass Spectrom. Ion Phys., 1979, 32, 27. [all data]

Majer, Olavesen, et al., 1971
Majer, J.R.; Olavesen, C.; Robb, J.C., Wavelength effect in the photolysis of halogenated ketones, J. Chem. Soc. B, 1971, 48. [all data]

Potzinger and Bunau, 1969
Potzinger, P.; Bunau, G.v., Empirische Beruksichtigung von Uberschussenergien bei der Auftrittspotentialbestimmung, Ber. Bunsen-Ges. Phys. Chem., 1969, 73, 466. [all data]

Haney and Franklin, 1969
Haney, M.A.; Franklin, J.L., Excess energies in mass spectra of some oxygen-containing organic compounds, J. Chem. Soc. Faraday Trans., 1969, 65, 1794. [all data]

Shigorin, Filyugina, et al., 1966
Shigorin, D.N.; Filyugina, A.D.; Potapov, V.K., Ionization and dissociation of molecules of acetaldehyde, acetone, and acetic acid on electron impact, Teor. i Eksperim. Khim., 1966, 2, 554, In original 417. [all data]

Kanomata, 1961
Kanomata, I., Mass-spectrometric study on ionization and dissociation of formaldehyde, acetaldehyde, acetone and ethyl methyl ketone by electron impact, Bull. Chem. Soc. Japan, 1961, 34, 1864. [all data]

Murad and Inghram, 1964, 2
Murad, E.; Inghram, M.G., Thermodynamic properties of the acetyl radical and bond dissociation energies in aliphatic carbonyl compounds, J. Chem. Phys., 1964, 41, 404. [all data]

Potapov and Shigorin, 1966
Potapov, V.K.; Shigorin, D.N., Relation between nature of electronic states of the acetone molecule and mechanism of its breakdown on electron bombardment, Zh. Fiz. Khim., 1966, 40, 200, In original 101. [all data]

Ho, Yang, et al., 1997
Ho, Y.-P.; Yang, Y.-C.; Klippenstein, S.J.; Dunbar, R.C., Binding Energies of Ag+ and Cd+ Complexes from Analysis of Radiative Association Kinetics, J. Phys. Chem. A, 1997, 101, 18, 3338, https://doi.org/10.1021/jp9637284 . [all data]

Mackay, Rakshit, et al., 1982
Mackay, G.I.; Rakshit, A.B.; Bohme, D.K., An Experimental Study of the Reactivity and Relative Basicity of the Methoxide Anion in the Gas Phase at Room Temperature, and their Perturbation by Methanol Solvent, Can. J. Chem., 1982, 60, 20, 2594, https://doi.org/10.1139/v82-373 . [all data]

Lin, Chen, et al., 1997
Lin, C.-Y.; Chen, Q.; Chen, H.; Freiser, B.S., Bond Dissociation Energy Determinations for MOC(CH3)2+ and MOC(CD3)2+ (M=Cr, Mn) Using Continuous Ejection and Radiative Association Methods, Int. J. Mass Spectrom. Ion Proc., 1997, 167/168, 713, https://doi.org/10.1016/S0168-1176(97)00131-6 . [all data]

Caldwell, Masucci, et al., 1989
Caldwell, G.W.; Masucci, J.A.; Ikonomou, M.G., Negative Ion Chemical Ionization Mass Spectrometry - Binding of Molecules to Bromide and Iodide Anions, Org. Mass Spectrom., 1989, 24, 1, 8, https://doi.org/10.1002/oms.1210240103 . [all data]

Notes

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Symbols used in this document:

AE	Appearance energy
C_p,gas	Constant pressure heat capacity of gas
C_p,liquid	Constant pressure heat capacity of liquid
C_p,solid	Constant pressure heat capacity of solid
EA	Electron affinity
IE (evaluated)	Recommended ionization energy
P_c	Critical pressure
S°_liquid	Entropy of liquid at standard conditions
T	Temperature
T_boil	Boiling point
T_c	Critical temperature
T_fus	Fusion (melting) point
T_triple	Triple point temperature
Δ_cH°_gas	Enthalpy of combustion of gas at standard conditions
Δ_cH°_liquid	Enthalpy of combustion of liquid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fH°_liquid	Enthalpy of formation of liquid at standard conditions
Δ_fusH	Enthalpy of fusion
Δ_fusS	Entropy of fusion
Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_rS°	Entropy of reaction at standard conditions
Δ_vapH	Enthalpy of vaporization
Δ_vapH°	Enthalpy of vaporization at standard conditions
ρ_c	Critical density

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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