2-Butanone
- Formula: C4H8O
- Molecular weight: 72.1057
- IUPAC Standard InChIKey: ZWEHNKRNPOVVGH-UHFFFAOYSA-N
- CAS Registry Number: 78-93-3
- 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. - Other names: Butan-2-one; Butanone; Ethyl methyl ketone; Ketone, methyl ethyl; Methyl ethyl ketone; MEK; C2H5COCH3; Acetone, methyl-; Aethylmethylketon; 3-Butanone; Butanone 2; Ethyl methyl cetone; Ethylmethylketon; Ketone, ethyl methyl; Meetco; Methyl acetone; Metiletilchetone; Metyloetyloketon; Rcra waste number U159; UN 1193; 2-Oxobutane; 2-Butanal; 2-butanone (MEK; methyl ethyl ketone); 2-butanone (MEK)
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry 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 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 |
---|---|---|---|---|---|
ΔfH°gas | -57.02 ± 0.20 | kcal/mol | Cm | Chao and Zwolinski, 1976 | ALS |
ΔfH°gas | -57.05 ± 0.23 | kcal/mol | Eqk | Buckley and Herington, 1965 | Reanalyzed by Cox and Pilcher, 1970, Original value = -56.89 kcal/mol; ALS |
ΔfH°gas | -56.90 | kcal/mol | Ccb | Sinke and Oetting, 1964 | ALS |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.63 | 100. | Chao J., 1986 | p=1 bar. Recommended values agree with results of statistical calculations [ Sinke G.C., 1964, Chao J., 1976] within 0.2-1.8 J/mol*K. S(T) values calculated by [ Nickerson J.K., 1961] are different from selected ones by 4-5 J/mol*K.; GT |
16.49 | 150. | ||
19.17 | 200. | ||
22.97 | 273.15 | ||
24.302 ± 0.033 | 298.15 | ||
24.400 | 300. | ||
29.725 | 400. | ||
34.668 | 500. | ||
38.994 | 600. | ||
42.727 | 700. | ||
45.949 | 800. | ||
48.736 | 900. | ||
51.145 | 1000. | ||
53.224 | 1100. | ||
55.022 | 1200. | ||
56.573 | 1300. | ||
57.913 | 1400. | ||
59.075 | 1500. |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
27.110 ± 0.055 | 347.15 | von Geiseler G., 1973 | Experimental data [ Vilcu R., 1975] differ appreciably from data selected here. Their correctness seems to be doubtful (see [ Kabo G.J., 1995]). Low accuracy is also expected for experimental value of Cp(410 K)=123.85 J/mol*K [ Bennewitz K., 1938]. Please also see Nickerson J.K., 1961.; GT |
27.641 ± 0.041 | 358.79 | ||
28.370 ± 0.043 | 371.90 | ||
28.449 ± 0.057 | 372.15 | ||
29.099 ± 0.043 | 385.60 | ||
29.730 ± 0.060 | 397.15 | ||
29.780 ± 0.045 | 399.55 | ||
30.349 ± 0.045 | 410.70 | ||
31.479 ± 0.062 | 432.15 | ||
33.131 ± 0.067 | 467.15 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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 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 |
---|---|---|---|---|---|
ΔfH°liquid | -65.31 ± 0.29 | kcal/mol | Ccb | Sinke and Oetting, 1964 | ALS |
ΔfH°liquid | -66.68 | kcal/mol | Ccb | Parks, Mosley, et al., 1950 | see Moore, Renquist, et al., 1940; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -584.17 | kcal/mol | Ccb | Sinke and Oetting, 1964 | Corresponding ΔfHºliquid = -65.29 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -582.80 | kcal/mol | Ccb | Parks, Mosley, et al., 1950 | see Moore, Renquist, et al., 1940; Corresponding ΔfHºliquid = -66.66 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -582.28 ± 0.37 | kcal/mol | Ccb | Crog and Hunt, 1942 | Corresponding ΔfHºliquid = -67.18 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 57.12 | cal/mol*K | N/A | Andon, Counsell, et al., 1968 | DH |
S°liquid | 57.079 | cal/mol*K | N/A | Sinke and Oetting, 1964 | DH |
S°liquid | 57.70 | cal/mol*K | N/A | Parks, Kennedy, et al., 1956 | Extrapolation below 80 K, 53.47 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
38.0 | 298.15 | Malhotra and Woolf, 1992 | T = 278 to 338 K. p = 0.1 MPa.; DH |
38.77 | 303.15 | Reddy, 1986 | T = 303.15, 313.15 K.; DH |
37.86 | 298.15 | Costas and Patterson, 1985 | T = 283.15, 298.15, 313.15 K.; DH |
37.86 | 298.15 | Costas and Patterson, 1985, 2 | DH |
37.741 | 298.15 | Grolier and Benson, 1984 | DH |
37.86 | 298.1 | Roux, Perron, et al., 1978 | T = 277 to 313 K.; DH |
38.05 | 298.15 | Grolier, Benson, et al., 1975 | DH |
37.93 | 298.15 | Andon, Counsell, et al., 1968 | T = 10 to 320 K.; DH |
37.76 | 293. | Rastorguev and Ganiev, 1967 | T = 293 to 353 K.; DH |
37.980 | 298.15 | Sinke and Oetting, 1964 | T = 13 to 308 K.; DH |
37.861 | 298.15 | Parks, Kennedy, et al., 1956 | T = 80 to 300 K.; DH |
38.41 | 297.0 | Kolosovskii and Udovenko, 1934 | DH |
38.41 | 297.0 | de Kolossowsky and Udowenko, 1933 | DH |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
RCD - Robert C. Dunbar
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.
Individual Reactions
By formula: C4H9O+ + C4H8O = (C4H9O+ • C4H8O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 30.4 | 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 |
ΔrS° | 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 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 21.2 | 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 |
By formula: C5H11O+ + C4H8O = (C5H11O+ • C4H8O)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.5 | 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 |
ΔrS° | 29.4 | 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 |
ΔrG° | 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 |
C4H7O- + =
By formula: C4H7O- + H+ = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 367.2 ± 2.8 | kcal/mol | G+TS | Chyall, Brickhouse, et al., 1994 | gas phase; Primary and secondary sites are of equal acidity by equilibration. Acidity from Zimmerman, Reed, et al., 1977; B |
ΔrH° | 369.2 ± 2.4 | kcal/mol | D-EA | Zimmerman, Reed, et al., 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 360.4 ± 2.6 | kcal/mol | IMRE | Chyall, Brickhouse, et al., 1994 | gas phase; Primary and secondary sites are of equal acidity by equilibration. Acidity from Zimmerman, Reed, et al., 1977; B |
ΔrG° | 362.4 ± 2.6 | kcal/mol | H-TS | Zimmerman, Reed, et al., 1977 | gas phase; B |
By formula: C3H9Sn+ + C4H8O = (C3H9Sn+ • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 39.3 | 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 |
ΔrS° | 32.8 | cal/mol*K | N/A | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
22.1 | 525. | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
By formula: CH6N+ + C4H8O = (CH6N+ • C4H8O)
Bond type: Hydrogen bonds of the type NH+-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 25.2 | kcal/mol | PHPMS | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 25. | cal/mol*K | N/A | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
11.4 | 553. | PHPMS | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated; M |
By formula: Cl- + C4H8O = (Cl- • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 14.8 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 21.0 | cal/mol*K | N/A | Larson and McMahon, 1984 | gas phase; switching reaction(Cl-)(CH3)2CO, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 8.5 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
By formula: H2 + C4H8O = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -12.95 | kcal/mol | Eqk | Buckley and Herington, 1965 | gas phase; ALS |
ΔrH° | -13.0 ± 0.1 | kcal/mol | Chyd | Dolliver, Gresham, et al., 1938 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -13.2 ± 0.1 kcal/mol; At 355 °K; ALS |
C4H7O- + =
By formula: C4H7O- + H+ = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 401.0 ± 4.0 | kcal/mol | CIDT | Graul and Squires, 1990 | gas phase; B |
ΔrH° | <409.00 | kcal/mol | CIDT | Graul and Squires, 1988 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 393.5 ± 4.1 | kcal/mol | H-TS | Graul and Squires, 1990 | gas phase; B |
By formula: NO- + C4H8O = (NO- • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.2 | 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 |
C4H7O- + =
By formula: C4H7O- + H+ = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 368.1 ± 2.9 | kcal/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 361.3 ± 2.0 | kcal/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
(CAS Reg. No. 35730-33-7 • 4294967295) +
= CAS Reg. No. 35730-33-7
By formula: (CAS Reg. No. 35730-33-7 • 4294967295C4H8O) + C4H8O = CAS Reg. No. 35730-33-7
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 39.2 ± 2.2 | kcal/mol | N/A | Taft, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: C4H10O = H2 + C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.96 | kcal/mol | Eqk | Cubberley and Mueller, 1946 | gas phase; ALS |
ΔrH° | 13.664 | kcal/mol | Eqk | Kolb and Burwell, 1945 | gas phase; ALS |
By formula: Mg+ + C4H8O = (Mg+ • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 68. | kcal/mol | ICR | Operti, Tews, et al., 1988 | gas phase; switching reaction,Thermochemical ladder(CH3OH); M |
By formula: C6H14O2 + H2O = 2CH4O + C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 4.62 ± 0.01 | kcal/mol | Cm | Wiberg and Squires, 1979 | liquid phase; Heat of hydrolysis; ALS |
By formula: HI + C4H7IO = I2 + C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -10.2 | kcal/mol | Kin | Solly, Golden, et al., 1970 | gas phase; ALS |
By formula: H2 + C4H6O = C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -131.6 | kcal/mol | Chyd | Veselova and Sul'man, 1980 | liquid phase; ALS |
By formula: Na+ + C4H8O = (Na+ • C4H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 31.3 ± 1.7 | kcal/mol | CIDT | Moision and Armentrout, 2002 | RCD |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Sinke and Oetting, 1964
Sinke, G.C.; Oetting, F.L.,
The chemical thermodynamic properties of methyl ethyl ketone,
J. Phys. Chem., 1964, 68, 1354-1358. [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]
Sinke G.C., 1964
Sinke G.C.,
The chemical thermodynamic properties of methyl ethyl ketone,
J. Phys. Chem., 1964, 68, 1354-1358. [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]
Nickerson J.K., 1961
Nickerson J.K.,
The thermodynamic properties of the methyl ketone series,
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von Geiseler G., 1973
von Geiseler G.,
The heat capacity and the heat of vaporization of isomeric butylmethylketones and propylacetates,
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Vilcu R., 1975
Vilcu R.,
Determination of heat capacities of some alcohols and ketones in vapor phase,
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Kabo G.J., 1995
Kabo G.J.,
Thermodynamic properties, conformation, and phase transitions of cyclopentanol,
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Molar heats of vapor organic compounds,
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Parks, Mosley, et al., 1950
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Heats of combustion and formation of some organic compounds containing oxygen,
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Moore, Renquist, et al., 1940
Moore, G.E.; Renquist, M.L.; Parks, G.S.,
Thermal data on organic compounds. XX. Modern combustion data for two methylnonanes, methyl ethyl ketone, thiophene and six cycloparaffins,
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Crog and Hunt, 1942
Crog, R.S.; Hunt, H.,
Heats of combustion. II. The heats of combustion of ethyl methyl ketone and ethylene oxide,
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Andon, Counsell, et al., 1968
Andon, R.J.L.; Counsell, J.F.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. Part XX. The low-temperature heat capacity and entropy of C4 and C5 ketones,
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Parks, Kennedy, et al., 1956
Parks, G.S.; Kennedy, W.D.; Gates, R.R.; Mosley, J.R.; Moore, G.E.; Renquist, M.L.,
Thermal data on organic compounds. XXVI. Some heat capacity, entropy and free energy data for seven compounds containing oxygen.,
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Malhotra and Woolf, 1992
Malhotra, R.; Woolf, L.A.,
Thermodynamic properties of butan-2-one at temperatures from 278 to 338 K and pressures from 0.1 MPa to 280 MPa; predictions for higher ketones,
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Reddy, 1986
Reddy, K.S.,
Isentropic compressibilities of binary liquid mixtures at 303.15 and 313.15 K,
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Costas and Patterson, 1985
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Heat capacities of water + organic-solvent mixtures, J. Chem. Soc.,
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Self-association of alcohols in inert solvents, J. Chem. Soc.,
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Grolier and Benson, 1984
Grolier, J.-P.E.; Benson, G.C.,
Thermodynamic properties of binary mixtures containing ketones. VIII. Heat capacities and volumes of some n-alkanone + n-alkane mixtures at 298.15 K,
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Roux, Perron, et al., 1978
Roux, G.; Perron, G.; Desnoyers, J.E.,
The heat capacities and volumes of some low molecular weight amides, ketones, esters, and ethers in water over the whole solubility range,
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Grolier, Benson, et al., 1975
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Simultaneous measurements of heat capacities and densities of organic liquid mixtures-systems containing ketones,
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Rastorguev, Yu.L.; Ganiev, Yu.A.,
Study of the heat capacity of selected solvents,
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Kolosovskii, N.A.; Udovenko, W.W.,
Specific heat of liquids. II.,
Zhur. Obshchei Khim., 1934, 4, 1027-1033. [all data]
de Kolossowsky and Udowenko, 1933
de Kolossowsky, N.A.; Udowenko, W.W.,
Mesure des chaleurs specifique moleculaires de quelques liquides,
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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,
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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,
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. [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,
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Keesee and Castleman, 1986
Keesee, R.G.; Castleman, A.W., Jr.,
Thermochemical data on Ggs-phase ion-molecule association and clustering reactions,
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Chyall, Brickhouse, et al., 1994
Chyall, L.J.; Brickhouse, M.D.; Schnute, M.E.; Squires, R.R.,
Kinetic versus thermodynamic control in the deprotonation of unsymmetrical ketones in the gas phase,
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Zimmerman, Reed, et al., 1977
Zimmerman, A.H.; Reed, K.J.; Brauman, J.I.,
Photodetachment of electrons from enolate anions. Gas phase electron affinities of enolate radicals,
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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, 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,
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Larson and McMahon, 1984
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,
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Larson and McMahon, 1984, 2
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Gas phase negative ion chemistry of alkylchloroformates,
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Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions T Temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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