Selected ATcT [1, 2] enthalpy of formation based on version 1.122r of the Thermochemical Network [3] This version of ATcT results was generated from an expansion of version 1.122q [4, 5] to include a non-rigid rotor anharmonic oscillator (NRRAO) partition function for hydroxymethyl [6], as well as data on 42 additional species, some of which are related to soot formation mechanisms.
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Species Name |
Formula |
Image |
ΔfH°(0 K) |
ΔfH°(298.15 K) |
Uncertainty |
Units |
Relative Molecular Mass |
ATcT ID |
Formate | [HC(O)O]- (g) | | -463.23 | -466.88 | ± 0.56 | kJ/mol | 45.0180 ± 0.0010 | 71-47-6*0 |
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Representative Geometry of [HC(O)O]- (g) |
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spin ON spin OFF |
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Top contributors to the provenance of ΔfH° of [HC(O)O]- (g)The 9 contributors listed below account for 34.4% of the provenance of ΔfH° of [HC(O)O]- (g).
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 | 6.9 | 3894.7 | HOCO (g, cis) → HC(O)O (g, 2A1)  | ΔrH°(0 K) = 11.6 ± 0.4 kcal/mol | Feller 2003c | 5.1 | 3897.1 | HC(O)OH (g) + Cl- (g) → [HC(O)O]- (g) + HCl (g)  | ΔrG°(600 K) = 8.4 ± 0.2 (×2.709) kcal/mol | Cumming 1978 | 4.9 | 5410.1 | [C6H5O]- (g) + HC(O)OH (g) → C6H5OH (g) + [HC(O)O]- (g)  | ΔrG°(500 K) = -4.9 ± 0.4 kcal/mol | Cumming 1978 | 3.4 | 3907.4 | HC(O)O (g, 2A1) → H (g) + CO2 (g)  | ΔrH°(0 K) = -12.6 ± 0.7 kcal/mol | Feller 2003c, note unc3 | 3.2 | 3893.8 | HOCO (g, trans) → HC(O)O (g, 2A1)  | ΔrH°(0 K) = 13.8 ± 0.5 (×1.215) kcal/mol | Dixon 2003, est unc | 3.0 | 3882.9 | HC(O)O (g, 2A1) → H (g) + C (g) + 2 O (g)  | ΔrH°(0 K) = 369.0 ± 0.4 (×1.874) kcal/mol | Feller 2003c | 2.7 | 3889.9 | [HC(O)O]- (g) → H (g) + C (g) + 2 O (g)  | ΔrH°(0 K) = 450.2 ± 0.8 kcal/mol | Dixon 2003, est unc | 2.6 | 3882.7 | HC(O)O (g, 2A1) → H (g) + C (g) + 2 O (g)  | ΔrH°(0 K) = 369.2 ± 0.8 kcal/mol | Dixon 2003, est unc | 2.3 | 3904.5 | HC(O)OH (g) + [OH]- (g) → [HC(O)O]- (g) + H2O (g)  | ΔrH°(0 K) = -46.33 ± 0.8 kcal/mol | Ruscic W1RO |
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Top 10 species with enthalpies of formation correlated to the ΔfH° of [HC(O)O]- (g) |
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 | 99.0 | Formyloxidanyl | HC(O)O (g, 2A1) | | -125.90 | -127.56 | ± 0.56 | kJ/mol | 45.0174 ± 0.0010 | 16499-21-1*1 | 99.0 | Formyloxidanyl | HC(O)O (g) | | -125.90 | -127.26 | ± 0.56 | kJ/mol | 45.0174 ± 0.0010 | 16499-21-1*0 | 99.0 | Formyloxidanyl | HC(O)O (g, 2B2) | | -122.09 | -125.44 | ± 0.56 | kJ/mol | 45.0174 ± 0.0010 | 16499-21-1*2 | 24.2 | Formyloxoniumylidene | [HC(O)O]+ (g) | | 1017.3 | 1013.9 | ± 1.4 | kJ/mol | 45.0169 ± 0.0010 | 54375-27-8*0 | 21.6 | Hydroxyformyl | HOCO (g, cis) | | -174.31 | -177.34 | ± 0.50 | kJ/mol | 45.0174 ± 0.0010 | 2564-86-5*2 | 20.0 | Hydroxyformyl | HOCO (g) | | -181.14 | -183.68 | ± 0.44 | kJ/mol | 45.0174 ± 0.0010 | 2564-86-5*0 | 20.0 | Hydroxyformyl | HOCO (g, trans) | | -181.14 | -184.10 | ± 0.44 | kJ/mol | 45.0174 ± 0.0010 | 2564-86-5*1 | 18.4 | Formic acid | HC(O)OH (g) | | -371.09 | -378.38 | ± 0.22 | kJ/mol | 46.0254 ± 0.0010 | 64-18-6*0 | 18.4 | Formic acid | HC(O)OH (g, syn) | | -371.09 | -378.40 | ± 0.22 | kJ/mol | 46.0254 ± 0.0010 | 64-18-6*1 | 17.7 | Acetate | [CH3C(O)O]- (g) | | -496.4 | -505.5 | ± 1.2 | kJ/mol | 59.0446 ± 0.0017 | 71-50-1*0 |
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Most Influential reactions involving [HC(O)O]- (g)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 | 0.630 | 3887.1 | [HC(O)O]- (g) → HC(O)O (g, 2B2)  | ΔrH°(0 K) = 28516 ± 8 cm-1 | Garand 2010 | 0.628 | 3886.1 | [HC(O)O]- (g) → HC(O)O (g, 2A1)  | ΔrH°(0 K) = 28198 ± 8 cm-1 | Garand 2010 | 0.195 | 5410.1 | [C6H5O]- (g) + HC(O)OH (g) → C6H5OH (g) + [HC(O)O]- (g)  | ΔrG°(500 K) = -4.9 ± 0.4 kcal/mol | Cumming 1978 | 0.106 | 4128.5 | [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 | 0.099 | 3895.8 | [HC(O)O]- (g) → [HC(O)O]+ (g)  | ΔrH°(0 K) = 15.388 ± 0.040 (×1.091) eV | Ruscic W1RO | 0.067 | 4128.4 | [CH3C(O)O]- (g) + HC(O)OH (g, syn) → CH3C(O)OH (g, syn) + [HC(O)O]- (g)  | ΔrH°(0 K) = -3.54 ± 1.0 kcal/mol | Ruscic CBS-n | 0.067 | 4128.2 | [CH3C(O)O]- (g) + HC(O)OH (g, syn) → CH3C(O)OH (g, syn) + [HC(O)O]- (g)  | ΔrH°(0 K) = -3.76 ± 1.0 kcal/mol | Ruscic G4 | 0.059 | 3897.1 | HC(O)OH (g) + Cl- (g) → [HC(O)O]- (g) + HCl (g)  | ΔrG°(600 K) = 8.4 ± 0.2 (×2.709) kcal/mol | Cumming 1978 | 0.048 | 5410.6 | [C6H5O]- (g) + HC(O)OH (g) → C6H5OH (g) + [HC(O)O]- (g)  | ΔrH°(0 K) = -5.30 ± 0.8 kcal/mol | Ruscic W1RO | 0.047 | 4128.1 | [CH3C(O)O]- (g) + HC(O)OH (g, syn) → CH3C(O)OH (g, syn) + [HC(O)O]- (g)  | ΔrH°(0 K) = -3.77 ± 1.2 kcal/mol | Ruscic G3X | 0.040 | 4128.3 | [CH3C(O)O]- (g) + HC(O)OH (g, syn) → CH3C(O)OH (g, syn) + [HC(O)O]- (g)  | ΔrH°(0 K) = -3.71 ± 1.3 kcal/mol | Ruscic CBS-n | 0.035 | 3895.4 | [HC(O)O]- (g) → [HC(O)O]+ (g)  | ΔrH°(0 K) = 15.388 ± 0.073 eV | Ruscic G4 | 0.033 | 3895.7 | [HC(O)O]- (g) → [HC(O)O]+ (g)  | ΔrH°(0 K) = 15.291 ± 0.075 eV | Ruscic CBS-n | 0.031 | 5410.5 | [C6H5O]- (g) + HC(O)OH (g) → C6H5OH (g) + [HC(O)O]- (g)  | ΔrH°(0 K) = -5.06 ± 1.0 kcal/mol | Ruscic CBS-n | 0.031 | 5410.3 | [C6H5O]- (g) + HC(O)OH (g) → C6H5OH (g) + [HC(O)O]- (g)  | ΔrH°(0 K) = -5.33 ± 1.0 kcal/mol | Ruscic G4 | 0.027 | 3904.5 | HC(O)OH (g) + [OH]- (g) → [HC(O)O]- (g) + H2O (g)  | ΔrH°(0 K) = -46.33 ± 0.8 kcal/mol | Ruscic W1RO | 0.027 | 3889.9 | [HC(O)O]- (g) → H (g) + C (g) + 2 O (g)  | ΔrH°(0 K) = 450.2 ± 0.8 kcal/mol | Dixon 2003, est unc | 0.021 | 3895.3 | [HC(O)O]- (g) → [HC(O)O]+ (g)  | ΔrH°(0 K) = 15.386 ± 0.093 eV | Ruscic G3X | 0.021 | 5410.2 | [C6H5O]- (g) + HC(O)OH (g) → C6H5OH (g) + [HC(O)O]- (g)  | ΔrH°(0 K) = -5.07 ± 1.2 kcal/mol | Ruscic G3X | 0.021 | 3903.5 | HC(O)OH (g) → [HC(O)O]- (g) + H+ (g)  | ΔrH°(0 K) = 343.23 ± 0.90 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,
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3
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B. Ruscic and D. H. Bross, Active Thermochemical Tables (ATcT) values based on ver. 1.122r of the Thermochemical Network, Argonne National Laboratory, Lemont, Illinois 2021 [DOI: 10.17038/CSE/1822363]; available at ATcT.anl.gov
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4
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D. Feller, D. H. Bross, and B. Ruscic,
Enthalpy of Formation of C2H2O4 (Oxalic Acid) from High-Level Calculations and the Active Thermochemical Tables Approach.
J. Phys. Chem. A 123, 3481-3496 (2019)
[DOI: 10.1021/acs.jpca.8b12329]
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5
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B. K. Welch, R. Dawes, D. H. Bross, and B. Ruscic,
An Automated Thermochemistry Protocol Based on Explicitly Correlated Coupled-Cluster Theory: The Methyl and Ethyl Peroxy Families.
J. Phys. Chem. A 123, 5673-5682 (2019)
[DOI: 10.1021/acs.jpca.8b12329]
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6
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D. H. Bross, H.-G. Yu, L. B. Harding, and B. Ruscic,
Active Thermochemical Tables: The Partition Function of Hydroxymethyl (CH2OH) Revisited.
J. Phys. Chem. A 123, 4212-4231 (2019)
[DOI: 10.1021/acs.jpca.9b02295]
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7
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B. Ruscic,
Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables.
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