Methyl formate

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Condensed phase thermochemistry data

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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
Δfliquid-87.45kcal/molEqkGladii, Starchevskii, et al., 1990ALS
Δfliquid-90.35kcal/molCmGuthrie, 1974Heat of hydrolysis; ALS
Δfliquid-93.4kcal/molCmHine and Klueppet, 1974ALS
Δfliquid-92.28kcal/molCcrHall and Baldt, 1971ALS
Quantity Value Units Method Reference Comment
Δcliquid-232.46 ± 0.14kcal/molCcrHall and Baldt, 1971Corresponding Δfliquid = -92.27 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
28.817298.75Zabransky, Hynek, et al., 1987T = 293 to 299 K. Unsmoothed experimental datum.; DH
28.61298.15Fuchs, 1979DH
22.8297.Hall and Baldt, 1971DH
28.99288.Mehl, 1934DH
31.1298.Berthelot and Ogier, 1881T = 286 to 302 K. Cp given as 0.516 cal/g*K.; DH

Reaction thermochemistry data

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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:
B - John E. Bartmess
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.

Individual Reactions

C2H3O2- + Hydrogen cation = Methyl formate

By formula: C2H3O2- + H+ = C2H4O2

Quantity Value Units Method Reference Comment
Δr<384.00kcal/molCIDTGraul and Squires, 1988gas phase; B
Δr<391.75 ± 0.90kcal/molG+TSDePuy, Grabowski, et al., 1985gas phase; HO- + DCO2CH3 -> (M-D)-. ΔHf(MeO- + CO) = -59.7 kcal/mol; B
Quantity Value Units Method Reference Comment
Δr<384.00kcal/molIMRBDePuy, Grabowski, et al., 1985gas phase; HO- + DCO2CH3 -> (M-D)-. ΔHf(MeO- + CO) = -59.7 kcal/mol; B

C2H3O2- + Hydrogen cation = Methyl formate

By formula: C2H3O2- + H+ = C2H4O2

Quantity Value Units Method Reference Comment
Δr391.2 ± 4.1kcal/molG+TSDePuy, Grabowski, et al., 1985gas phase; B
Quantity Value Units Method Reference Comment
Δr384.1 ± 4.0kcal/molIMRBDePuy, Grabowski, et al., 1985gas phase; B

Methane, trimethoxy- + Water = Methyl formate + 2Methyl Alcohol

By formula: C4H10O3 + H2O = C2H4O2 + 2CH4O

Quantity Value Units Method Reference Comment
Δr-2.29 ± 0.28kcal/molCmHine and Klueppet, 1974liquid phase; ALS

Gas phase ion energetics data

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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
LL - Sharon G. Lias and Joel F. Liebman
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 C2H4O2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)10.835eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)187.0kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity179.6kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.835TEWaterstradt, Jung, et al., 1994LL
~10.7PECannington and Ham, 1985LBLHLM
10.99PEKimura, Katsumata, et al., 1981LLK
10.85 ± 0.05PEBenoit, Harrison, et al., 1977LLK
10.85PESweigart and Turner, 1972LLK
10.815 ± 0.005PIWatanabe, Nakayama, et al., 1962RDSH
11.0PECannington and Ham, 1985Vertical value; LBLHLM
10.85PEBenoit and Harrison, 1977Vertical value; LLK
10.3PERao, 1975Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHO+12.91 ± 0.07CH3OPIPECONishimura, Zha, et al., 1987LBLHLM
CHO+13.47 ± 0.05CH3OEIHaney and Franklin, 1969RDSH
CHO2+15.9CH3EIKing and Long, 1958RDSH
CH2+19.8?EIKing and Long, 1958RDSH
CH2O+13.6?EIKing and Long, 1958RDSH
CH3+13.27 ± 0.24HCO2PIPECONishimura, Zha, et al., 1987LBLHLM
CH3+13.71?EIHaney and Franklin, 1969RDSH
CH3O+12.23CHOEIHaney and Franklin, 1969RDSH
CH4O+11.47 ± 0.05COPIPECONishimura, Zha, et al., 1987LBLHLM
CH4O+11.5 ± 0.1COEIVanRaalte and Harrison, 1963RDSH
C2H3O2+12.3HEIKing and Long, 1958RDSH

De-protonation reactions

C2H3O2- + Hydrogen cation = Methyl formate

By formula: C2H3O2- + H+ = C2H4O2

Quantity Value Units Method Reference Comment
Δr<384.00kcal/molCIDTGraul and Squires, 1988gas phase; B
Δr<391.75 ± 0.90kcal/molG+TSDePuy, Grabowski, et al., 1985gas phase; HO- + DCO2CH3 -> (M-D)-. ΔHf(MeO- + CO) = -59.7 kcal/mol; B
Quantity Value Units Method Reference Comment
Δr<384.00kcal/molIMRBDePuy, Grabowski, et al., 1985gas phase; HO- + DCO2CH3 -> (M-D)-. ΔHf(MeO- + CO) = -59.7 kcal/mol; B

C2H3O2- + Hydrogen cation = Methyl formate

By formula: C2H3O2- + H+ = C2H4O2

Quantity Value Units Method Reference Comment
Δr391.2 ± 4.1kcal/molG+TSDePuy, Grabowski, et al., 1985gas phase; B
Quantity Value Units Method Reference Comment
Δr384.1 ± 4.0kcal/molIMRBDePuy, Grabowski, et al., 1985gas phase; B

References

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

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Gladii, Starchevskii, et al., 1990
Gladii, S.L.; Starchevskii, M.K.; Pazderskii, Yu.A.; Moiseev, I.I., Chemical equilibrium in the methyl formate-water-methanol-formic acid system, J. Appl. Chem. USSR, 1990, 63, 106-111. [all data]

Guthrie, 1974
Guthrie, J.P., Hydration of carboxamides. Evaluation of the free energy change for addition of water to acetamide and formamide derivatives, J. Am. Chem. Soc., 1974, 96, 3608-3615. [all data]

Hine and Klueppet, 1974
Hine, J.; Klueppet, A.W., Structural effects on rates and equilibria. XVIII. Thermodynamic stability of ortho esters, J. Am. Chem. Soc., 1974, 96, 2924-2929. [all data]

Hall and Baldt, 1971
Hall, H.K., Jr.; Baldt, J.H., Thermochemistry of strained-ring bridgehead nitriles and esters, J. Am. Chem. Soc., 1971, 93, 140-145. [all data]

Zabransky, Hynek, et al., 1987
Zabransky, M.; Hynek, V.; Finkeova-Hastabova, J.; Vesely, F., Heat capacities of six liquid esters as a function of temperature, Coll. Czech. Chem. Comm., 1987, 52, 251-256. [all data]

Fuchs, 1979
Fuchs, R., Heat capacities of some liquid aliphatic, alicyclic, and aromatic esters at 298.15 K, J. Chem. Thermodyn., 1979, 11, 959-961. [all data]

Mehl, 1934
Mehl, W., Die spezifische Wärme einiger flüssiger Kältemittel, Z. ges. Kalte-Ind., 1934, 41, 152-153. [all data]

Berthelot and Ogier, 1881
Berthelot, M.; Ogier, J., Recherches sur les ethers formiques, Ann. chim. et phys., 1881, 23(5), 201-209. [all data]

Graul and Squires, 1988
Graul, S.T.; Squires, R.R., On the Existence of Alkyl Carbanions in the Gas Phase, J. Am. Chem. Soc., 1988, 110, 2, 607, https://doi.org/10.1021/ja00210a054 . [all data]

DePuy, Grabowski, et al., 1985
DePuy, C.H.; Grabowski, J.J.; Bierbaum, V.M.; Ingemann, S.; Nibbering, N.M.M., Gas-phase reactions of anions with methyl formate and N,N-dimethylformamide, J. Am. Chem. Soc., 1985, 107, 1093. [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]

Waterstradt, Jung, et al., 1994
Waterstradt, E.; Jung, R.; Belling, T.; Muller-Dethlefs, K., Zero kinetic energy (ZEKE) photoelectron spectrum and coincident mass spectra of methyl formate, Ber. Bunsen-Ges. Phys. Chem., 1994, 98, 176. [all data]

Cannington and Ham, 1985
Cannington, P.H.; Ham, N.S., He(II) photoelectron spectra of esters, J. Electron Spectrosc. Relat. Phenom., 1985, 36, 203. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Benoit, Harrison, et al., 1977
Benoit, F.M.; Harrison, A.G.; Lossing, F.P., Hydrogen migrations in mass spectrometry III-Energetics of formation of [R'CO2H2]+ in the mass spectra of R'CO2R, Org. Mass Spectrom., 1977, 12, 78. [all data]

Sweigart and Turner, 1972
Sweigart, D.A.; Turner, D.W., Lone pair orbitals and their interactions studied by photoelectron spectroscopy. I. Carboxylic acids and their derivatives, J. Am. Chem. Soc., 1972, 94, 5592. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [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]

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]

Nishimura, Zha, et al., 1987
Nishimura, T.; Zha, Q.; Meisels, G.G., Unimolecular dissociation of energy-selected methyl formate ion, J. Chem. Phys., 1987, 87, 4589. [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]

King and Long, 1958
King, A.B.; Long, F.A., Mass spectra of some simple esters and their interpretation by quasi-equilibrium theory, J. Chem. Phys., 1958, 29, 374. [all data]

VanRaalte and Harrison, 1963
VanRaalte, D.; Harrison, A.G., Ionization and dissociation of formate esters by electron impact, Can. J. Chem., 1963, 41, 2054. [all data]


Notes

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