Selected ATcT [1, 2] enthalpy of formation based on version 1.202 of the Thermochemical Network [3]This version of ATcT results[3] was generated by additional expansion of version 1.176 in order to include species related to the thermochemistry of glycine[4].
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Phenide |
Formula: [C6H5]- (g) |
CAS RN: 30922-78-2 |
ATcT ID: 30922-78-2*0 |
SMILES: c1cccc[c-]1 |
InChI: InChI=1S/C6H5/c1-2-4-6-5-3-1/h1-5H/q-1 |
InChIKey: BJISZDCMBMQNIY-UHFFFAOYSA-N |
Hills Formula: C6H5- |
2D Image: |
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Aliases: Phenide; Phenide ion; Phenide anion; Phenide ion (1-); Benzenide; Benzenide ion; Benzenide anion; Benzenide ion (1-); Phenyl anion; Phenyl ion (1-); [C6H5]-; C6H5- |
Relative Molecular Mass: 77.1044 ± 0.0048 |
ΔfH°(0 K) | ΔfH°(298.15 K) | Uncertainty | Units |
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244.27 | 230.84 | ± 0.38 | kJ/mol |
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3D Image of [C6H5]- (g) |
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Top contributors to the provenance of ΔfH° of [C6H5]- (g)The 20 contributors listed below account only for 70.1% of the provenance of ΔfH° of [C6H5]- (g). A total of 154 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 | 14.8 | 1677.1 | [NH2]- (g) → NH2 (g)  | ΔrH°(0 K) = 0.771 ± 0.005 eV | Wickham-Jones 1989 | 11.0 | 6961.1 | C6H6 (g) + [NH2]- (g) → [C6H5]- (g) + NH3 (g)  | ΔrG°(300 K) = -3.557 ± 0.047 kcal/mol | Davico 1995 | 10.3 | 1678.11 | [NH2]- (g) → NH2 (g)  | ΔrH°(0 K) = 0.773 ± 0.006 eV | Feller 2016, note unc2 | 4.3 | 6937.3 | C6H6 (cr,l) + 15/2 O2 (g) → 6 CO2 (g) + 3 H2O (cr,l)  | ΔrH°(298.15 K) = -780.97 ± 0.09 kcal/mol | Coops 1947, Coops 1946 | 3.7 | 1677.4 | [NH2]- (g) → NH2 (g)  | ΔrH°(0 K) = 0.768 ± 0.010 eV | Radisic 2002 | 3.5 | 6937.1 | C6H6 (cr,l) + 15/2 O2 (g) → 6 CO2 (g) + 3 H2O (cr,l)  | ΔrH°(298.15 K) = -780.98 ± 0.10 kcal/mol | Prosen 1945a, as quoted by Cox 1970 | 3.5 | 6937.4 | C6H6 (cr,l) + 15/2 O2 (g) → 6 CO2 (g) + 3 H2O (cr,l)  | ΔrH°(298.15 K) = -780.92 ± 0.10 kcal/mol | Good 1969 | 2.6 | 1685.4 | [NH2]- (g) + H2 (g) → H- (g) + NH3 (g)  | ΔrG°(296 K) = -1.916 ± 0.272 (×1.114) kcal/mol | Bohme 1973, MacKay 1976, note unc2 | 2.4 | 6937.2 | C6H6 (cr,l) + 15/2 O2 (g) → 6 CO2 (g) + 3 H2O (cr,l)  | ΔrH°(298.15 K) = -780.96 ± 0.12 kcal/mol | Cox 1970 | 2.3 | 6961.3 | C6H6 (g) + [NH2]- (g) → [C6H5]- (g) + NH3 (g)  | ΔrG°(300 K) = -3.618 ± 0.101 kcal/mol | Davico 1995 | 1.5 | 6961.2 | C6H6 (g) + [NH2]- (g) → [C6H5]- (g) + NH3 (g)  | ΔrG°(300 K) = -3.557 ± 0.125 kcal/mol | Davico 1995 | 1.5 | 1685.2 | [NH2]- (g) + H2 (g) → H- (g) + NH3 (g)  | ΔrG°(297 K) = -1.945 ± 0.400 kcal/mol | Bohme 1973, note unc2 | 1.4 | 2228.7 | C (graphite) + O2 (g) → CO2 (g)  | ΔrH°(298.15 K) = -393.464 ± 0.024 kJ/mol | Hawtin 1966, note CO2e | 1.3 | 2696.1 | CH3NH2 (g) + [NH2]- (g) → [CH3NH]- (g) + NH3 (g)  | ΔrG°(296 K) = -0.51 ± 0.20 kcal/mol | MacKay 1976, note unc2 | 1.0 | 1687.1 | NH3 (g) → [NH2]+ (g) + H (g)  | ΔrH°(0 K) = 15.765 ± 0.002 eV | Song 2001a, note unc2 | 0.9 | 6945.1 | [C6H5]- (g) → C6H5 (g)  | ΔrH°(0 K) = 1.096 ± 0.006 (×4.555) eV | Gunion 1992 | 0.9 | 9342.1 | CH3CH2NH2 (g) + [NH2]- (g) → [CH3CH2NH]- (g) + NH3 (g)  | ΔrG°(296 K) = -4.22 ± 0.36 kcal/mol | MacKay 1976, note unc2 | 0.8 | 125.2 | 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 | 0.8 | 2697.1 | [CH3NH]- (g) + H2 (g) → H- (g) + CH3NH2 (g)  | ΔrG°(296 K) = -1.46 ± 0.29 kcal/mol | MacKay 1976, note unc2 | 0.7 | 2573.1 | [CH2CH]- (g) + NH3 (g) → [NH2]- (g) + CH2CH2 (g)  | ΔrG°(298.15 K) = -4.54 ± 0.24 kcal/mol | Ervin 1990 |
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Top 10 species with enthalpies of formation correlated to the ΔfH° of [C6H5]- (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 | 72.0 | Azanide | [NH2]- (g) | | 114.65 | 111.77 | ± 0.29 | kJ/mol | 16.02317 ± 0.00016 | 17655-31-1*0 | 52.6 | Benzene | C6H6 (g) | | 100.70 | 83.19 | ± 0.21 | kJ/mol | 78.1118 ± 0.0048 | 71-43-2*0 | 52.6 | Benzene cation | [C6H6]+ (g) | | 992.59 | 976.12 | ± 0.21 | kJ/mol | 78.1113 ± 0.0048 | 34504-50-2*0 | 52.5 | Benzene | C6H6 (cr,l) | | 50.79 | 49.25 | ± 0.21 | kJ/mol | 78.1118 ± 0.0048 | 71-43-2*500 | 24.2 | Fluorobenzene | C6H5F (g) | | -96.04 | -111.71 | ± 0.39 | kJ/mol | 96.1023 ± 0.0048 | 462-06-6*0 | 24.1 | Fluorobenzene cation | [C6H5F]+ (g) | | 791.94 | 776.92 | ± 0.39 | kJ/mol | 96.1018 ± 0.0048 | 34468-25-2*0 | 24.1 | Fluorobenzene | C6H5F (cr,l) | | -148.76 | -146.34 | ± 0.39 | kJ/mol | 96.1023 ± 0.0048 | 462-06-6*500 | 23.9 | Carbonic acid | C(O)(OH)2 (aq, undissoc) | | | -698.669 | ± 0.028 | kJ/mol | 62.0248 ± 0.0012 | 463-79-6*1000 | 20.6 | Carbon dioxide | CO2 (g) | | -393.111 | -393.477 | ± 0.015 | kJ/mol | 44.00950 ± 0.00100 | 124-38-9*0 | 20.5 | Phenyl | C6H5 (g) | | 352.64 | 339.28 | ± 0.60 | kJ/mol | 77.1039 ± 0.0048 | 2396-01-2*0 |
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Most Influential reactions involving [C6H5]- (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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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. 1.202 of the Thermochemical Network (2024); available at ATcT.anl.gov |
4
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B. Ruscic and D. H. Bross
Accurate and Reliable Thermochemistry by Data Analysis of Complex Thermochemical Networks using Active Thermochemical Tables: The Case of Glycine Thermochemistry
Faraday Discuss. (in press) (2024)
[DOI: 10.1039/D4FD00110A]
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5
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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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6
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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 [5] and Ruscic and Bross[6]).
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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