Selected ATcT [1, 2] enthalpy of formation based on version 1.122x of the Thermochemical Network [3]This version of ATcT results was generated from an expansion of version 1.122v [4] to include species relevant to the study of bond dissociation enthalpies of representative aromatic aldehydes [5].
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Species Name |
Formula |
Image |
ΔfH°(0 K) |
ΔfH°(298.15 K) |
Uncertainty |
Units |
Relative Molecular Mass |
ATcT ID |
Formic acid | HC(O)OH (g, syn) | | -371.05 | -378.36 | ± 0.22 | kJ/mol | 46.0254 ± 0.0010 | 64-18-6*1 |
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Representative Geometry of HC(O)OH (g, syn) |
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spin ON spin OFF |
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Top contributors to the provenance of ΔfH° of HC(O)OH (g, syn)The 20 contributors listed below account only for 66.9% of the provenance of ΔfH° of HC(O)OH (g, syn). A total of 207 contributors would be needed to account for 90% of the provenance.
Please note: The list is limited to 20 most important contributors or, if less, a number sufficient to account for 90% of the provenance. The Reference acts as a further link to the relevant references and notes for the measurement. The Measured Quantity is normaly given in the original units; in cases where we have reinterpreted the original measurement, the listed value may differ from that given by the authors. The quoted uncertainty is the a priori uncertainty used as input when constructing the initial Thermochemical Network, and corresponds either to the value proposed by the original authors or to our estimate; if an additional multiplier is given in parentheses immediately after the prior uncertainty, it corresponds to the factor by which the prior uncertainty needed to be multiplied during the ATcT analysis in order to make that particular measurement consistent with the prevailing knowledge contained in the Thermochemical Network.
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Contribution (%) | TN ID | Reaction | Measured Quantity | Reference | 17.4 | 4043.2 | HC(O)OH (cr,l) + 1/2 O2 (g) → CO2 (g) + H2O (cr,l)  | ΔrH°(298.15 K) = -60.807 ± 0.074 kcal/mol | Lebedeva 1964 | 12.0 | 4043.1 | HC(O)OH (cr,l) + 1/2 O2 (g) → CO2 (g) + H2O (cr,l)  | ΔrH°(298.15 K) = -60.851 ± 0.089 kcal/mol | Sinke 1959 | 11.5 | 4044.1 | HC(O)OH (cr,l) → HC(O)OH (g)  | ΔrH°(298.15 K) = 46.30 ± 0.23 kJ/mol | Majer 1985 | 4.1 | 2704.2 | HC(O)OH (g, syn) → [HCO]+ (g) + OH (g)  | ΔrH°(0 K) = 12.81 ± 0.01 eV | Traeger 1985, AE corr | 3.8 | 4042.2 | HC(O)OH (g) → [HCO]+ (g) + OH (g)  | ΔrH°(0 K) = 1235.7 ± 1.0 kJ/mol | Shuman 2010a, Bomble 2006 | 3.8 | 4044.2 | HC(O)OH (cr,l) → HC(O)OH (g)  | ΔrH°(298.15 K) = 46.15 ± 0.40 kJ/mol | NBS Tables 1989 | 2.7 | 4018.3 | HC(O)OH (g, syn) → C (g) + 2 H (g) + 2 O (g)  | ΔrH°(0 K) = 479.81 ± 0.30 kcal/mol | Karton 2011 | 2.4 | 4044.3 | HC(O)OH (cr,l) → HC(O)OH (g)  | ΔrH°(298.15 K) = 46.3 ± 0.5 kJ/mol | Konicek 1970 | 1.5 | 4017.10 | HC(O)OH (g, syn) → C (g) + 2 H (g) + 2 O (g)  | ΔrH°(0 K) = 480.1 ± 0.4 kcal/mol | Feller 2003c | 1.0 | 4110.14 | HC(O)OH (g, syn) → [HOCO]+ (g) + H (g)  | ΔrH°(0 K) = 1187.3 ± 1.0 kJ/mol | Shuman 2010a | 1.0 | 4053.11 | CH2(OO) (g) → HC(O)OH (g, syn)  | ΔrH°(0 K) = -90.89 ± 0.25 kcal/mol | Karton 2011 | 1.0 | 4032.1 | CH4 (g) + 2 H2O (g) → HC(O)OH (g, syn) + 3 H2 (g)  | ΔrH°(0 K) = 173.33 ± 2.00 kJ/mol | Klippenstein 2017 | 0.7 | 4018.2 | HC(O)OH (g, syn) → C (g) + 2 H (g) + 2 O (g)  | ΔrH°(0 K) = 479.82 ± 0.56 kcal/mol | Karton 2011 | 0.6 | 4110.2 | HC(O)OH (g, syn) → [HOCO]+ (g) + H (g)  | ΔrH°(0 K) = 12.316 ± 0.013 eV | Ruscic 1989 | 0.6 | 4045.11 | CH2(OO) (g) → C (g) + 2 H (g) + 2 O (g)  | ΔrH°(0 K) = 388.92 ± 0.30 kcal/mol | Karton 2011 | 0.4 | 2704.1 | HC(O)OH (g, syn) → [HCO]+ (g) + OH (g)  | ΔrH°(0 K) = 12.84 ± 0.03 eV | Matthews 1969, AE corr | 0.4 | 4053.10 | CH2(OO) (g) → HC(O)OH (g, syn)  | ΔrH°(0 K) = -91.10 ± 0.40 kcal/mol | Karton 2011 | 0.3 | 2736.6 | C(O)(OH)2 (g, cis-trans) → CO2 (g) + H2O (g)  | ΔrH°(0 K) = -8.72 ± 0.8 kcal/mol | Nguyen 2008a, est unc | 0.3 | 120.2 | 1/2 O2 (g) + H2 (g) → H2O (cr,l)  | ΔrH°(298.15 K) = -285.8261 ± 0.040 kJ/mol | Rossini 1939, Rossini 1931, Rossini 1931b, note H2Oa, Rossini 1930 | 0.3 | 2733.5 | C(O)(OH)2 (g, cis-cis) + CH2O (g) → 2 HC(O)OH (g, syn)  | ΔrH°(0 K) = -8.03 ± 0.85 kcal/mol | Ruscic W1RO |
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Top 10 species with enthalpies of formation correlated to the ΔfH° of HC(O)OH (g, syn) |
Please note: The correlation coefficients are obtained by renormalizing the off-diagonal elements of the covariance matrix by the corresponding variances. The correlation coefficient is a number from -1 to 1, with 1 representing perfectly correlated species, -1 representing perfectly anti-correlated species, and 0 representing perfectly uncorrelated species.
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Correlation Coefficent (%) | Species Name | Formula | Image | ΔfH°(0 K) | ΔfH°(298.15 K) | Uncertainty | Units | Relative Molecular Mass | ATcT ID | 100.0 | Formic acid | HC(O)OH (g) | | -371.05 | -378.34 | ± 0.22 | kJ/mol | 46.0254 ± 0.0010 | 64-18-6*0 | 84.4 | Formic acid cation | [HC(O)OH]+ (g, syn) | | 721.93 | 714.84 | ± 0.25 | kJ/mol | 46.0248 ± 0.0010 | 50614-05-6*1 | 84.4 | Formic acid cation | [HC(O)OH]+ (g) | | 721.93 | 715.40 | ± 0.25 | kJ/mol | 46.0248 ± 0.0010 | 50614-05-6*0 | 67.0 | Formic acid | HC(O)OH (cr,l) | | -431.50 | -424.67 | ± 0.20 | kJ/mol | 46.0254 ± 0.0010 | 64-18-6*500 | 53.1 | Formic acid | HC(O)OH (g, anti) | | -354.72 | -361.82 | ± 0.38 | kJ/mol | 46.0254 ± 0.0010 | 64-18-6*2 | 26.8 | Carbonic acid | C(O)(OH)2 (g) | | -602.53 | -611.84 | ± 0.75 | kJ/mol | 62.0248 ± 0.0012 | 463-79-6*0 | 26.8 | Carbonic acid | C(O)(OH)2 (g, cis-cis) | | -602.53 | -612.70 | ± 0.75 | kJ/mol | 62.0248 ± 0.0012 | 463-79-6*1 | 25.1 | Carbonic acid | C(O)(OH)2 (g, cis-trans) | | -596.69 | -606.80 | ± 0.83 | kJ/mol | 62.0248 ± 0.0012 | 463-79-6*2 | 24.6 | Hydroxyoxomethylium | [HOCO]+ (g) | | 600.68 | 597.59 | ± 0.44 | kJ/mol | 45.0169 ± 0.0010 | 638-71-1*0 | 24.2 | Methanium | [CH5]+ (g) | | 921.98 | 911.74 | ± 0.44 | kJ/mol | 17.04985 ± 0.00087 | 15135-49-6*0 |
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Most Influential reactions involving HC(O)OH (g, syn)Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.
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Influence Coefficient | TN ID | Reaction | Measured Quantity | Reference | 1.000 | 4033.1 | HC(O)OH (g) → HC(O)OH (g, syn)  | ΔrH°(0 K) = 0.000 ± 0.000 cm-1 | triv, Gurvich TPIS, Ruscic G3B3 | 0.774 | 4036.1 | HC(O)OH (g, syn) → HC(O)OH (g, anti)  | ΔrH°(0 K) = 1365 ± 30 cm-1 | Hocking 1976, Gurvich TPIS | 0.478 | 4020.2 | HC(O)OH (g, syn) → [HC(O)OH]+ (g, syn)  | ΔrH°(0 K) = 11.329 ± 0.002 eV | Bell 1975 | 0.311 | 4020.1 | HC(O)OH (g, syn) → [HC(O)OH]+ (g, syn)  | ΔrH°(0 K) = 91370 ± 20 cm-1 | Price 1937, est unc | 0.253 | 4053.11 | CH2(OO) (g) → HC(O)OH (g, syn)  | ΔrH°(0 K) = -90.89 ± 0.25 kcal/mol | Karton 2011 | 0.186 | 4110.14 | HC(O)OH (g, syn) → [HOCO]+ (g) + H (g)  | ΔrH°(0 K) = 1187.3 ± 1.0 kJ/mol | Shuman 2010a | 0.169 | 4020.8 | HC(O)OH (g, syn) → [HC(O)OH]+ (g, syn)  | ΔrH°(0 K) = 11.3246 ± 0.0020 (×1.682) eV | Leach 2003, Schwell 2001 | 0.160 | 4437.6 | CH3C(O)OH (g, syn) + HOCO (g, trans) → CH3C(O)O (g, 2A") + HC(O)OH (g, syn)  | ΔrH°(0 K) = 45.92 ± 2.00 kJ/mol | Klippenstein 2017 | 0.133 | 4025.8 | [HC(O)OH]- (g, syn) → HC(O)OH (g, syn)  | ΔrH°(0 K) = -1.204 ± 0.050 eV | Ruscic W1RO | 0.118 | 4110.2 | HC(O)OH (g, syn) → [HOCO]+ (g) + H (g)  | ΔrH°(0 K) = 12.316 ± 0.013 eV | Ruscic 1989 | 0.107 | 4422.8 | HC(O)OCH3 (g, syn) + HOCO (g, trans) → CH3OCO (g, anti-staggered) + HC(O)OH (g, syn)  | ΔrH°(0 K) = 1.11 ± 0.85 kcal/mol | Ruscic W1RO | 0.099 | 4053.10 | CH2(OO) (g) → HC(O)OH (g, syn)  | ΔrH°(0 K) = -91.10 ± 0.40 kcal/mol | Karton 2011 | 0.096 | 4422.7 | HC(O)OCH3 (g, syn) + HOCO (g, trans) → CH3OCO (g, anti-staggered) + HC(O)OH (g, syn)  | ΔrH°(0 K) = 1.21 ± 0.90 kcal/mol | Ruscic CBS-n | 0.096 | 4422.3 | HC(O)OCH3 (g, syn) + HOCO (g, trans) → CH3OCO (g, anti-staggered) + HC(O)OH (g, syn)  | ΔrH°(0 K) = 1.05 ± 0.90 kcal/mol | Ruscic G3X | 0.096 | 4422.4 | HC(O)OCH3 (g, syn) + HOCO (g, trans) → CH3OCO (g, anti-staggered) + HC(O)OH (g, syn)  | ΔrH°(0 K) = 0.74 ± 0.90 kcal/mol | Ruscic G4 | 0.092 | 4022.5 | HC(O)OH (g, syn) → [HC(O)OH]+ (g, anti)  | ΔrH°(0 K) = 11.362 ± 0.040 eV | Ruscic W1RO | 0.089 | 4025.4 | [HC(O)OH]- (g, syn) → HC(O)OH (g, syn)  | ΔrH°(0 K) = -1.175 ± 0.061 eV | Ruscic G4 | 0.077 | 4422.6 | HC(O)OCH3 (g, syn) + HOCO (g, trans) → CH3OCO (g, anti-staggered) + HC(O)OH (g, syn)  | ΔrH°(0 K) = 1.15 ± 1.0 kcal/mol | Ruscic CBS-n | 0.070 | 2737.5 | C(O)(OH)2 (g, trans-trans) + CH2O (g) → 2 HC(O)OH (g, syn)  | ΔrH°(0 K) = -17.89 ± 0.85 kcal/mol | Ruscic W1RO | 0.065 | 4439.5 | [CH3C(O)O]- (g) + HC(O)OH (g, syn) → CH3C(O)OH (g, syn) + [HC(O)O]- (g)  | ΔrH°(0 K) = -3.73 ± 0.8 kcal/mol | Ruscic W1RO |
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References
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1
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B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner,
Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited.
J. Phys. Chem. A 108, 9979-9997 (2004)
[DOI: 10.1021/jp047912y]
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2
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B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner,
Active Thermochemical Tables: Thermochemistry for the 21st Century.
J. Phys. Conf. Ser. 16, 561-570 (2005)
[DOI: 10.1088/1742-6596/16/1/078]
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3
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B. Ruscic and D. H. Bross, Active Thermochemical Tables (ATcT) values based on ver. 1.122x of the Thermochemical Network, Argonne National Laboratory, Lemont, Illinois 2022; available at ATcT.anl.gov [DOI: 10.17038/CSE/1885922]
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4
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D. P. Zaleski, R. Sivaramakrishnan, H. R. Weller, N. A Seifert, D. H. Bross, B. Ruscic, K. B. Moore III, S. N. Elliott, A. V. Copan, L. B. Harding, S. J. Klippenstein, R. W. Field, and K. Prozument,
Substitution Reactions in the Pyrolysis of Acetone Revealed through a Modeling, Experiment, Theory Paradigm.
J. Am. Chem. Soc. 143, 3124-3152 (2021)
[DOI: 10.1021/jacs.0c11677]
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5
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Y. Ren, L. Zhou, A. Mellouki, V. Daƫle, M. Idir, S. S. Brown, B. Ruscic, Robert S. Paton, M. R. McGillen, and A. R. Ravishankara,
Reactions of NO3 with Aromatic Aldehydes: Gas-Phase Kinetics and Insights into the Mechanism of the Reaction.
Atmos. Chem. Phys. 21, 13537-13551 (2021)
[DOI: 10.5194/acp2021-228]
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6
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B. Ruscic,
Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables.
Int. J. Quantum Chem. 114, 1097-1101 (2014)
[DOI: 10.1002/qua.24605]
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7
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B. Ruscic and D. H. Bross,
Thermochemistry
Computer Aided Chem. Eng. 45, 3-114 (2019)
[DOI: 10.1016/B978-0-444-64087-1.00001-2]
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Formula
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The aggregate state is given in parentheses following the formula, such as: g - gas-phase, cr - crystal, l - liquid, etc.
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Uncertainties
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The listed uncertainties correspond to estimated 95% confidence limits, as customary in thermochemistry (see, for example, Ruscic [6,7]).
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.0005 kJ/mol.
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Website Functionality Credits
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The reorganization of the website was developed and implemented by David H. Bross (ANL).
The find function is based on the complete Species Dictionary entries for the appropriate version of the ATcT TN.
The molecule images are rendered by Indigo-depict.
The XYZ renderings are based on Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.
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Acknowledgement
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This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences under Contract No. DE-AC02-06CH11357.
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