Acetone
- Formula: C3H6O
- Molecular weight: 58.0791
- 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:
- 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:
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Phase change data
Go To: Top, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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 |
---|---|---|---|---|---|
Tboil | 329.3 ± 0.3 | K | AVG | N/A | Average of 117 out of 129 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 178.7 ± 0.9 | K | AVG | N/A | Average of 11 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 178.5 | K | N/A | Wilhoit, Chao, et al., 1985 | Uncertainty assigned by TRC = 0.3 K; TRC |
Ttriple | 176.6 | K | N/A | Kelley, 1929 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.15 K; deduced from appearance of a small maximum in heat capacity; TRC |
Ttriple | 177.6 | K | N/A | Parks and Kelley, 1928 | Uncertainty assigned by TRC = 0.3 K; TRC |
Ttriple | 177.6 | K | N/A | Parks and Kelley, 1925 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 508. ± 2. | K | AVG | N/A | Average of 19 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 48. ± 4. | bar | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.63 | mol/l | N/A | Campbell and Chatterjee, 1969 | Uncertainty assigned by TRC = 0.05 mol/l; TRC |
ρc | 4.03 | mol/l | N/A | Campbell and Chatterjee, 1968 | Uncertainty assigned by TRC = 0.026 mol/l; TRC |
ρc | 4.79 | mol/l | N/A | Kobe, Crawford, et al., 1955 | Uncertainty assigned by TRC = 0.17 mol/l; TRC |
ρc | 4.70 | mol/l | N/A | Rosenbaum, 1951 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
ρc | 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 |
ΔvapH° | 31.27 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 31.3 | kJ/mol | N/A | Ambrose, Ellender, et al., 1975 | AC |
ΔvapH° | 29.7 ± 0.004 | kJ/mol | V | Mathews, 1926 | ALS |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
329.3 | 0.027 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
29.1 | 329.3 | N/A | Majer and Svoboda, 1985 | |
32.1 | 308. | N/A | Soni, Ramjugernath, et al., 2008 | Based on data from 298. to 318. K.; AC |
29.9 | 344. | A | Stephenson and Malanowski, 1987 | Based on data from 329. to 488. K.; AC |
32.9 | 228. | A | Stephenson and Malanowski, 1987 | Based on data from 178. to 243. K.; AC |
33.8 | 254. | A | Stephenson and Malanowski, 1987 | Based on data from 203. to 269. K.; AC |
30.6 | 338. | A | Stephenson and Malanowski, 1987 | Based on data from 323. to 379. K.; AC |
29.5 | 389. | A | Stephenson and Malanowski, 1987 | Based on data from 374. to 464. K.; AC |
29.7 | 472. | A | Stephenson and Malanowski, 1987 | Based on data from 457. to 508. K.; AC |
32.8 | 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 |
32.7 | 276. | A,EB | Stephenson and Malanowski, 1987 | Based on data from 261. to 328. K. See also Boublík and Aim, 1972.; AC |
31.9 | 300. | EB | Baliah and Gnanasekaran, 1986 | Based on data from 285. to 329. K.; AC |
26.1 | 373. | C | Dmitriev, Kachurina, et al., 1986 | AC |
21.7 | 423. | C | Dmitriev, Kachurina, et al., 1986 | AC |
15.3 | 473. | C | Dmitriev, Kachurina, et al., 1986 | AC |
9.2 | 498. | C | Dmitriev, Kachurina, et al., 1986 | AC |
31.8 | 319. | N/A | Castellari, Francesconi, et al., 1984 | Based on data from 305. to 333. K.; AC |
32.6 | 285. | N/A | Sokolov, Zhilina, et al., 1963 | Based on data from 278. to 293. K.; AC |
31.1 | 319. | N/A | Brown and Smith, 1957 | Based on data from 310. to 329. K.; AC |
29.09 | 338. | C | Pennington and Kobe, 1957 | ALS |
35. | 253. | MG | Felsing and Durban, 1926 | Based on data from 204. to 339. K.; AC |
32.1 | 293. | MG | Felsing and Durban, 1926 | Based on data from 204. to 339. K.; AC |
30.7 | 313. | MG | Felsing and Durban, 1926 | Based on data from 204. to 339. K.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kJ/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
300. to 345. | 46.95 | 0.2826 | 508.2 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
259.16 to 507.60 | 4.42448 | 1312.253 | -32.445 | Ambrose, Sprake, et al., 1974 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
5.715 | 176.62 | Kelley, 1929, 2 | DH |
5.72 | 176.6 | Domalski and Hearing, 1996 | AC |
5.690 | 177.6 | Parks and Kelley, 1928, 2 | DH |
4.770 | 178.5 | Maass and Walbauer, 1925 | DH |
5.690 | 177.6 | Parks and Kelley, 1925, 2 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
32.36 | 176.62 | Kelley, 1929, 2 | DH |
32.0 | 177.6 | Parks and Kelley, 1928, 2 | DH |
26.7 | 178.5 | Maass and Walbauer, 1925 | DH |
32.03 | 177.6 | Parks and Kelley, 1925, 2 | DH |
Gas phase ion energetics data
Go To: Top, Phase change data, Ion clustering data, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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) | 812. | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 782.1 | kJ/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 (kJ/mol) | Reference | Comment |
---|---|---|
>815.2 | Bouchoux, Buisson, et al., 2003 | MM |
>814.3 | Bouchoux, Buisson, et al., 2003 | MM |
>812.6 ± 0.2 | Bouchoux, Buisson, et al., 2003 | MM |
811.5 ± 3.4 | 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 |
811.5 ± 3.4 | Bouchoux and Salpin, 1999 | T = 298K; MM |
Gas basicity at 298K
Gas basicity (review) (kJ/mol) | Reference | Comment |
---|---|---|
784.7 | Bouchoux, Buisson, et al., 2003 | MM |
782.2 | Bouchoux, Buisson, et al., 2003 | MM |
782.0 ± 0.2 | Bouchoux, Buisson, et al., 2003 | MM |
782.1 ± 1.5 | 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 |
782.1 ± 1.5 | Bouchoux and Salpin, 1999 | T = 298K; MM |
Ionization energy determinations
Appearance energy determinations
De-protonation reactions
C3H5O- + =
By formula: C3H5O- + H+ = C3H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1543. ± 8.8 | kJ/mol | D-EA | Brinkman, Berger, et al., 1993 | gas phase; B |
ΔrH° | 1544. ± 8.8 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 1546. ± 11. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
ΔrH° | 1538. ± 7.5 | kJ/mol | EIAE | Muftakhov, Vasil'ev, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1514. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 1516. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
Ion clustering data
Go To: Top, Phase change data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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
By formula: Ag+ + C3H6O = (Ag+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 160. ± 19. | kJ/mol | RAK | Ho, Yang, et al., 1997 | RCD |
By formula: (Al+ • C3H6O) + C3H6O = (Al+ • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 118. | kJ/mol | HPMS | Bauschlicher, Bouchard, et al., 1991 | gas phase; laser desorption; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 128. | J/mol*K | HPMS | Bauschlicher, Bouchard, et al., 1991 | gas phase; laser desorption; M |
By formula: CH6N+ + C3H6O = (CH6N+ • C3H6O)
Bond type: Hydrogen bonds of the type NH+-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 100. | kJ/mol | PHPMS | Meot-Ner, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 97.1 | J/mol*K | PHPMS | Meot-Ner, 1984 | gas phase; M |
By formula: CN- + C3H6O = (CN- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 62. ± 15. | kJ/mol | IMRE | Larson and McMahon, 1987 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 94.1 | J/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 |
ΔrG° | 33. ± 9.6 | kJ/mol | IMRE | Larson and McMahon, 1987 | gas phase; B,M |
By formula: C2H3O+ + C3H6O = (C2H3O+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 52.3 | kJ/mol | PI | Trott, Blais, et al., 1978 | gas phase; M |
By formula: C2H3O2- + C3H6O = (C2H3O2- • C3H6O)
Bond type: Hydrogen bonds of deprotonated acids to ketones/
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 65.7 ± 4.2 | kJ/mol | TDAs | Meot-ner, 1988 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 91.6 | J/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 38. ± 4.2 | kJ/mol | TDAs | Meot-ner, 1988 | gas phase; B |
By formula: (C2H3O2- • C3H6O) + C3H6O = (C2H3O2- • 2C3H6O)
Bond type: Hydrogen bonds of deprotonated acids to ketones/
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 45.2 | kJ/mol | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 74.9 | J/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
By formula: C2H7OS+ + C3H6O = (C2H7OS+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 101. | kJ/mol | PHPMS | Lau, Saluja, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 103. | J/mol*K | PHPMS | Lau, Saluja, et al., 1980 | gas phase; M |
By formula: C3H5O+ + C3H6O = (C3H5O+ • C3H6O)
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
35. | 295. | FA | Mackay, Rakshit, et al., 1982 | gas phase; M |
By formula: C3H5O- + C3H6O = (C3H5O- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | >108.4 | kJ/mol | IMRB | Sheldon and Bowie, 1983 | gas phase; MeOH..F- + Me2CO ->; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | >82.42 | kJ/mol | IMRB | Sheldon and Bowie, 1983 | gas phase; MeOH..F- + Me2CO ->; B |
By formula: C3H6O+ + C3H6O = (C3H6O+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 51.9 | kJ/mol | PI | Trott, Blais, et al., 1978 | gas phase; ΔrH>; M |
By formula: C3H7O+ + C3H6O = (C3H7O+ • C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 128. | kJ/mol | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; M |
ΔrH° | 126. | kJ/mol | PHPMS | Szulejko and McMahon, 1991 | gas phase; M |
ΔrH° | 124. | kJ/mol | PHPMS | Hiraoka and Takimoto, 1986 | gas phase; M |
ΔrH° | 132. | kJ/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 |
ΔrH° | 126. | kJ/mol | PHPMS | Lau, Saluja, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 118. | J/mol*K | PHPMS | Meot-Ner (Mautner) and Sieck, 1991 | gas phase; M |
ΔrS° | 128. | J/mol*K | PHPMS | Szulejko and McMahon, 1991 | gas phase; M |
ΔrS° | 123. | J/mol*K | PHPMS | Hiraoka and Takimoto, 1986 | gas phase; M |
ΔrS° | 129. | J/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 |
ΔrS° | 127. | J/mol*K | PHPMS | Lau, Saluja, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 93.3 | kJ/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 |
By formula: (C3H7O+ • C3H6O) + C3H6O = (C3H7O+ • 2C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 51.0 | kJ/mol | PHPMS | Hiraoka, Morise, et al., 1986 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 96.2 | J/mol*K | PHPMS | Hiraoka, Morise, et al., 1986 | gas phase; M |
By formula: (C3H7O+ • 2C3H6O) + C3H6O = (C3H7O+ • 3C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 36. | kJ/mol | PHPMS | Hiraoka, Takimoto, et al., 1986 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71.1 | J/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1986 | gas phase; M |
By formula: C3H7O2+ + C3H6O = (C3H7O2+ • C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 126. | kJ/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 |
ΔrS° | 121. | J/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 |
ΔrG° | 89.5 | kJ/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 |
By formula: C3H9Si+ + C3H6O = (C3H9Si+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 188. | kJ/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 |
ΔrS° | 123. | J/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
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
131. | 468. | PHPMS | Wojtyniak and Stone, 1986 | gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M |
By formula: C3H9Sn+ + C3H6O = (C3H9Sn+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 156. | kJ/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 |
ΔrS° | 129. | J/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 |
ΔrG° | 88.7 | kJ/mol | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
By formula: C4H4N- + C3H6O = (C4H4N- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.8 ± 4.2 | kJ/mol | TDAs | Meot-ner, 1988, 2 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 85.8 | J/mol*K | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 29. ± 4.2 | kJ/mol | TDAs | Meot-ner, 1988, 2 | gas phase; B |
By formula: (C4H4N- • C3H6O) + C3H6O = (C4H4N- • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 44.8 | kJ/mol | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 79.5 | J/mol*K | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
By formula: C4H9O+ + C3H6O = (C4H9O+ • C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 130. | kJ/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 |
ΔrS° | 128. | J/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 |
ΔrG° | 91.6 | kJ/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 |
By formula: C4H9O+ + C3H6O = (C4H9O+ • C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 123. | kJ/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 |
ΔrS° | 122. | J/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 |
ΔrG° | 86.6 | kJ/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 |
By formula: C5H5- + C3H6O = (C5H5- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 56.5 ± 4.2 | kJ/mol | TDAs | Meot-ner, 1988, 2 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 91.2 | J/mol*K | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 29. ± 4.2 | kJ/mol | TDAs | Meot-ner, 1988, 2 | gas phase; B |
By formula: (C5H5- • C3H6O) + C3H6O = (C5H5- • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41. | kJ/mol | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 68.6 | J/mol*K | PHPMS | Meot-ner, 1988, 2 | gas phase; M |
By formula: C5H11O+ + C3H6O = (C5H11O+ • C3H6O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 119. | kJ/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 |
ΔrS° | 121. | J/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 |
ΔrG° | 83.3 | kJ/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 |
By formula: C6H5NO2- + C3H6O = (C6H5NO2- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 59.41 ± 0.84 | kJ/mol | TDAs | Sieck, 1985 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 110. | J/mol*K | PHPMS | Sieck, 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 26.8 ± 1.7 | kJ/mol | TDAs | Sieck, 1985 | gas phase; B |
By formula: Cl- + C3H6O = (Cl- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 56. ± 6. | kJ/mol | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 76.1 | J/mol*K | PHPMS | Sieck, 1985 | gas phase; M |
ΔrS° | 82.0 | J/mol*K | PHPMS | French, Ikuta, et al., 1982 | gas phase; M |
ΔrS° | 71.5 | J/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1986 | gas phase; M |
ΔrS° | 82.4 | J/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 |
ΔrG° | 33.8 ± 0.84 | kJ/mol | TDAs | Bofdanov and McMahon, 2002 | gas phase; B |
ΔrG° | 30.5 | kJ/mol | TDAs | Hiraoka, Morise, et al., 1986 | gas phase; B |
ΔrG° | 36.8 ± 1.3 | kJ/mol | TDAs | Sieck, 1985 | gas phase; B |
ΔrG° | 34. ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984, 2 | gas phase; B,M |
ΔrG° | 33. ± 8.4 | kJ/mol | TDAs | French, Ikuta, et al., 1982 | gas phase; B |
By formula: (Cl- • C3H6O) + C3H6O = (Cl- • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 48.1 ± 4.2 | kJ/mol | TDAs | Hiraoka, Takimoto, et al., 1986 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84.9 | J/mol*K | PHPMS | Hiraoka, Takimoto, et al., 1986 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 23. ± 9.2 | kJ/mol | TDAs | Hiraoka, Takimoto, et al., 1986 | gas phase; B |
By formula: (Cl- • 2C3H6O) + C3H6O = (Cl- • 3C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 43.5 ± 8.4 | kJ/mol | TDAs | Hiraoka, Takimoto, et al., 1986 | gas phase; Entropy estimated; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | N/A | Hiraoka, Takimoto, et al., 1986 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 16. ± 19. | kJ/mol | TDAs | Hiraoka, Takimoto, et al., 1986 | gas phase; Entropy estimated; B |
By formula: Cr+ + C3H6O = (Cr+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 175. ± 14. | kJ/mol | RAK | Lin, Chen, et al., 1997 | RCD |
By formula: Cu+ + C3H6O = (Cu+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 199. ± 4.2 | kJ/mol | CIDT | Chu, 2002 | RCD |
ΔrH° | 62.3 | kJ/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 |
ΔrS° | 100. | J/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 |
ΔrG° | 31. | kJ/mol | HPMS | El-Shall, Schriver, et al., 1989 | gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M |
By formula: (Cu+ • C3H6O) + C3H6O = (Cu+ • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 210. ± 7.1 | kJ/mol | CIDT | Chu, 2002 | RCD |
ΔrH° | 64.9 | kJ/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 |
ΔrS° | 100. | J/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 |
ΔrG° | 33. | kJ/mol | HPMS | El-Shall, Schriver, et al., 1989 | gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M |
By formula: (Cu+ • 2C3H6O) + C3H6O = (Cu+ • 3C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 64. ± 2. | kJ/mol | CIDT | Chu, 2002 | RCD |
By formula: (Cu+ • 3C3H6O) + C3H6O = (Cu+ • 4C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 61.1 ± 5.0 | kJ/mol | CIDT | Chu, 2002 | RCD |
By formula: H4N+ + C3H6O = (H4N+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 118. | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 110. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (H4N+ • C3H6O) + C3H6O = (H4N+ • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 84.9 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 104. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (H4N+ • 2C3H6O) + C3H6O = (H4N+ • 3C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.1 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 109. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (H4N+ • 3C3H6O) + C3H6O = (H4N+ • 4C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.8 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 102. | J/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; M |
By formula: (H4N+ • 4C3H6O) + C3H6O = (H4N+ • 5C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.3 | kJ/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
19. | 215. | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1996 | gas phase; Entropy change calculated or estimated; M |
By formula: I- + C3H6O = (I- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 50.2 ± 4.2 | kJ/mol | TDAs | Caldwell, Masucci, et al., 1989 | gas phase; B,M |
By formula: K+ + C3H6O = (K+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 102. | kJ/mol | CIDT | Klassen, Anderson, et al., 1996 | RCD |
ΔrH° | 110. | kJ/mol | HPMS | Sunner, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | HPMS | Sunner, 1984 | gas phase; M |
By formula: (K+ • C3H6O) + C3H6O = (K+ • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 88. | kJ/mol | HPMS | Sunner, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 110. | J/mol*K | HPMS | Sunner, 1984 | gas phase; M |
By formula: (K+ • 2C3H6O) + C3H6O = (K+ • 3C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 67. | kJ/mol | HPMS | Sunner, 1984 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | HPMS | Sunner, 1984 | gas phase; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
38. | 293. | ES/HPMS | Blades, Klassen, et al., 1995 | gas phase; M |
By formula: (K+ • 3C3H6O) + C3H6O = (K+ • 4C3H6O)
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
25. | 293. | ES/HPMS | Blades, Klassen, et al., 1995 | gas phase; M |
By formula: Li+ + C3H6O = (Li+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 186. | kJ/mol | ICR | Staley and Beauchamp, 1975 | gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M |
By formula: Mg+ + C3H6O = (Mg+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 280. ± 20. | kJ/mol | ICR | Operti, Tews, et al., 1988 | gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M |
By formula: Mn+ + C3H6O = (Mn+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 159. ± 14. | kJ/mol | RAK | Lin, Chen, et al., 1997 | RCD |
By formula: NO- + C3H6O = (NO- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 172. | kJ/mol | ICR | Reents and Freiser, 1981 | gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M |
By formula: NO2- + C3H6O = (NO2- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.53 ± 0.42 | kJ/mol | TDAs | Sieck, 1985 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 108. | J/mol*K | PHPMS | Sieck, 1985 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 34.3 ± 0.84 | kJ/mol | TDAs | Sieck, 1985 | gas phase; B |
By formula: Na+ + C3H6O = (Na+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 131. ± 4.2 | kJ/mol | CIDT | Armentrout and Rodgers, 2000 | RCD |
ΔrH° | 129. ± 2. | kJ/mol | HPMS | Hoyau, Norrman, et al., 1999 | See 96KLA/AND?; RCD |
ΔrH° | 102. | kJ/mol | CIDT | Klassen, Anderson, et al., 1996 | RCD |
ΔrH° | 140. ± 0.8 | kJ/mol | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 87900. | J/mol*K | HPMS | Hoyau, Norrman, et al., 1999 | See 96KLA/AND?; RCD |
ΔrS° | 109. | J/mol*K | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
101. | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
By formula: (Na+ • C3H6O) + C3H6O = (Na+ • 2C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 105. ± 0.4 | kJ/mol | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 103. | J/mol*K | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
By formula: (Na+ • 2C3H6O) + C3H6O = (Na+ • 3C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 86.6 ± 0.8 | kJ/mol | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 126. | J/mol*K | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
By formula: (Na+ • 3C3H6O) + C3H6O = (Na+ • 4C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 61.5 ± 0.8 | kJ/mol | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 114. | J/mol*K | HPMS | Guo, Conklin, et al., 1989 | gas phase; M |
Vibrational and/or electronic energy levels
Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: C2ν Symmetry Number σ = 2
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1 | 1 | CH3 d-str | 3019 | C | 3018.5 S | gas | 3005.5 S | liq. | SF(ν13) | |
a1 | 2 | CH3 s-str | 2937 | D | 2937 S | gas | 2922 VS p | liq. | SF(ν14) | |
a1 | 3 | CO str | 1731 | C | 1731 VS | gas | 1710.5 S p | liq. | ||
a1 | 4 | CH3 d-deform | 1435 | C | 1435 S | gas | 1430 S | liq. | ||
a1 | 5 | CH3 s-deform | 1364 | C | 1363.5 VS | gas | 1356 W | liq. | SF(ν16) | |
a1 | 6 | CH3 rock | 1066 | C | 1066 M p | liq. | ||||
a1 | 7 | CC str | 777 | C | 777 W | gas | 787 VS p | liq. | ||
a1 | 8 | CCC deform | 385 | C | 385 W | gas | 393 W dp | liq. | ||
a2 | 9 | CH3 d-str | 2963 | E | ia | CF | ||||
a2 | 10 | CH3 d-deform | 1426 | E | ia | CF | ||||
a2 | 11 | CH3 rock | 877 | E | ia | CF | ||||
a2 | 12 | Torsion | 105 | D | ia | CF, MW: ν102 | ||||
b1 | 13 | CH3 d-str | 3019 | C | 3018.5 S | gas | 3005.5 S dp | liq. | SF(ν1) | |
b1 | 14 | CH3 s-str | 2937 | D | 2937 S | gas | 2922 VS | liq. | SF(ν2) | |
b1 | 15 | CH3 d-deform | 1410 | C | 1410 S | gas | ||||
b1 | 16 | CH3 s-deform | 1364 | C | 1363.5 VS | gas | SF(ν5) | |||
b1 | 17 | CC str | 1216 | C | 1215.5 VS | gas | 1221 M dp | liq. | ||
b1 | 18 | CH3 rock | 891 | C | 891 M | gas | 902.5 W dp | liq. | ||
b1 | 19 | CO ip-bend | 530 | C | 530 S | gas | 531 M dp | liq. | ||
b2 | 20 | CH3 d-str | 2972 | C | 2972 S | gas | 2967 S | liq. | ||
b2 | 21 | CH3 d-deform | 1454 | C | 1454 S | gas | ||||
b2 | 22 | CH3 rock | 1091 | C | 1090.5 M | gas | ||||
b2 | 23 | CO op-bend | 484 | C | 484 W | gas | 493 W dp | liq. | ||
b2 | 24 | Torsion | 109 | D | 109 | gas | MW: ν102 | |||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
ia | Inactive |
p | Polarized |
dp | Depolarized |
CF | Calculated frequency |
SF | Calculation shows that the frequency approximately equals that of the vibration indicated in the parentheses. |
MW | Torsional Frequency calculated from microwave spectroscopic data. |
C | 3~6 cm-1 uncertainty |
D | 6~15 cm-1 uncertainty |
E | 15~30 cm-1 uncertainty |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wilhoit, Chao, et al., 1985
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The accurate measurement of heats of vaporization of liquids,
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Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy Pc Critical pressure T Temperature Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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