Carbonic acid, dimethyl ester
- Formula: C3H6O3
- Molecular weight: 90.0779
- IUPAC Standard InChIKey: IEJIGPNLZYLLBP-UHFFFAOYSA-N
- CAS Registry Number: 616-38-6
- 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: Dimethyl carbonate; Methyl carbonate; Methyl carbonate ((MeO)2CO); CH3OCOOCH3; UN 1161; Dimethyl ester of carbonic acid
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Gas phase ion energetics data
Go To: Top, Gas Chromatography, 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
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 198.4 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 191.0 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
11.00 | PE | McGlynn and Meeks, 1976 | Vertical value; LLK |
11.2 | PE | Wittel, Astrup, et al., 1975 | Vertical value; LLK |
11.00 | PE | Meeks, Arnett, et al., 1975 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH3O+ | 10.96 ± 0.05 | C2H3O2 | EI | Suh, Kingsmill, et al., 1995 | Unpublished result of F.P.Lossing; LL |
C2H3O2+ | 11.50 ± 0.05 | CH3O | EI | Blanchette, Holmes, et al., 1986 | LBLHLM |
C2H3O2+ | 12.15 ± 0.08 | CH3O | EI | Briggs and Shannon, 1969 | RDSH |
C2H4O2+ | 11.56 ± 0.05 | CH2O | EI | Terlouw, Wezenberg, et al., 1983 | LBLHLM |
C2H4O2+ | 11.5 ± 0.2 | CH2O | EI | Terlouw, Wezenberg, et al., 1983 | LBLHLM |
Gas Chromatography
Go To: Top, Gas phase ion energetics 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 620. | Rotsatschakul, Visesanguan, et al., 2009 | 60. m/0.25 mm/0.25 μm, Helium; Program: 30 0C (2 min) 2 0Cmin -> 60 0C 10 0C/min -> 100 0C 20 0C/min -> 140 0C 10 0C/min -> 200 0C (10 min) |
References
Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
McGlynn and Meeks, 1976
McGlynn, S.P.; Meeks, J.L.,
Photoelectron spectra of carbonyls, carbonates, oxalates and esterification effects,
J. Electron Spectrosc. Relat. Phenom., 1976, 8, 85. [all data]
Wittel, Astrup, et al., 1975
Wittel, K.; Astrup, E.E.; Bock, H.; Graeffe, G.; Juslen, H.,
Photoelectron spectra and molecular properties, XLVIII Carbonates thio- carbonates,
Z. Naturforsch. B:, 1975, 30, 862. [all data]
Meeks, Arnett, et al., 1975
Meeks, J.L.; Arnett, J.F.; Larson, D.; McGlynn, S.P.,
Photoelectron spectroscopy of carbonyls. Ionization assignments,
Chem. Phys. Lett., 1975, 30, 190. [all data]
Suh, Kingsmill, et al., 1995
Suh, D.; Kingsmill, C.A.; Ruttink, P.J.A.; Burgers, P.C.; Terlouw, J.K.,
C-H...O and O...H...O bonded intermediates in the dissociation of low energy methyl glycolate radical cations,
Int. J. Mass Spectrom. Ion Processes, 1995, 146/147, 305. [all data]
Blanchette, Holmes, et al., 1986
Blanchette, M.C.; Holmes, J.L.; Hop, C.E.C.A.; Lossing, F.P.; Postma, R.; Ruttink, P.J.A.; Terlouw, J.K.,
Theory and experiment in concert; the CH3O-C=O+ ion and its isomers,
J. Am. Chem. Soc., 1986, 108, 7589. [all data]
Briggs and Shannon, 1969
Briggs, P.R.; Shannon, T.W.,
The heat of formation of the methoxycarbonyl ion,
J. Am. Chem. Soc., 1969, 91, 4307. [all data]
Terlouw, Wezenberg, et al., 1983
Terlouw, J.K.; Wezenberg, J.; Burgers, P.C.; Holmes, J.L.,
New stable isomers of [C2H4O]+ and [C2H4O2]+, the radical cations [CH2COH]+ and [CH3OCOH]+,
J. Chem. Soc., Chem. Commun., 1983, 1121. [all data]
Rotsatschakul, Visesanguan, et al., 2009
Rotsatschakul, P.; Visesanguan, W.; Smitinont, T.; Chaiseri, S.,
Changes in volatile compounds during fermentation of nham (Thai fermented sausage),
Int. Food Res. J., 2009, 16, 391-414. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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