Methylmalonic acid
- Formula: C4H6O4
- Molecular weight: 118.0880
- IUPAC Standard InChIKey: ZIYVHBGGAOATLY-UHFFFAOYSA-N
- CAS Registry Number: 516-05-2
- 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: Propanedioic acid, methyl-; Isosuccinic acid; Malonic acid, methyl-; 1,1-Ethanedicarboxylic acid; 2-Methylmalonic acid
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Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 117.4 ± 1.9 | kJ/mol | ME | Ribeiro da Silva, Monte, et al., 2000 | AC |
ΔsubH° | 113.2 ± 0.4 | kJ/mol | C | Al-Takhin, Pilcher, et al., 1983 | ALS |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.80 | PE | Ajo, Ciliberto, et al., 1980 | Vertical value |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, 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
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-IW-3419 |
NIST MS number | 231143 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ribeiro da Silva, Monte, et al., 2000
Ribeiro da Silva, Manuel A.V.; Monte, Manuel J.S.; Ribeiro, José R.,
Standard Enthalpies, Entropies, and Gibbs Functions of Sublimation of Four Alkyl-Substituted Malonic Acids,
J. Chem. Eng. Data, 2000, 45, 5, 756-759, https://doi.org/10.1021/je000090n
. [all data]
Al-Takhin, Pilcher, et al., 1983
Al-Takhin, G.; Pilcher, G.; Bickerton, J.,
Standard enthalpies of formation of diamine(dicarboxylato)platinum(II) complexes and of bis(pentane-2,4-dionato)platinum(II): the mean Pt-O bond dissociation enthalpies,
J. Chem. Soc. Dalton Trans., 1983, 2657-2659. [all data]
Ajo, Ciliberto, et al., 1980
Ajo, D.; Ciliberto, E.; Fragala, I.; Granozzi, G.,
Lone-pair interactions in the photoelectron spectra of dicarboxylic acids: Malonic acid its α-alkyl derivatives,
J. Mol. Struct., 1980, 62, 189. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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