Selected ATcT [1, 2] enthalpy of formation based on version 1.122 of the Thermochemical Network [3]
This version of ATcT results was partially described in Ruscic et al. [4],
and was also used for the initial development of high-accuracy ANLn composite electronic structure methods [5].
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| Species Name |
Formula |
Image |
ΔfH°(0 K) |
ΔfH°(298.15 K) |
Uncertainty |
Units |
Relative
Molecular
Mass |
ATcT ID |
| Ethyl chloride | CH3CH2Cl (g) |  | -96.76 | -111.35 | ± 0.20 | kJ/mol | 64.5138 ±
0.0019 | 75-00-3*0 |
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Representative Geometry of CH3CH2Cl (g) |
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| spin ON spin OFF |
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Top contributors to the provenance of ΔfH° of CH3CH2Cl (g)The 20 contributors listed below account only for 79.1% of the provenance of ΔfH° of CH3CH2Cl (g).
A total of 124 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 | | 53.5 | 3728.1 | C2H4 (g) + HCl (g) → CH3CH2Cl (g) | ΔrG°(471 K) = -10.007 ± 0.175 kJ/mol | Lane 1953, 3rd Law | | 8.0 | 3726.1 | CH3CH2Cl (g) + 3 O2 (g) → 2 CO2 (g) + HCl (aq, 600 H2O) + 2 H2O (cr,l) | ΔrH°(298.15 K) = -337.73 ± 0.14 (×1.114) kcal/mol | Fletcher 1971, as quoted by Pedley 1986 | | 3.6 | 1779.1 | C2H4 (g) + 3 O2 (g) → 2 CO2 (g) + 2 H2O (cr,l) | ΔrH°(298.15 K) = -1411.18 ± 0.30 kJ/mol | Rossini 1937 | | 2.7 | 3728.3 | C2H4 (g) + HCl (g) → CH3CH2Cl (g) | ΔrG°(486.9 K) = -8.75 ± 0.47 (×1.646) kJ/mol | Howlett 1955, 3rd Law | | 1.9 | 117.2 | 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 | | 1.6 | 1722.1 | C2H6 (g) + 7/2 O2 (g) → 2 CO2 (g) + 3 H2O (cr,l) | ΔrH°(298.15 K) = -1560.68 ± 0.25 kJ/mol | Pittam 1972 | | 1.0 | 1642.1 | 2 H2 (g) + C (graphite) → CH4 (g) | ΔrG°(1165 K) = 37.521 ± 0.068 kJ/mol | Smith 1946, note COf, 3rd Law | | 0.8 | 2555.1 | CH2(CH2CH2CH2) (g) → 2 C2H4 (g) | ΔrG°(750 K) = -13.37 ± 0.12 (×1.61) kcal/mol | Quick 1972, 3rd Law, note unc3 | | 0.8 | 1780.1 | C2H4 (g) + H2 (g) → C2H6 (g) | ΔrH°(355.15 K) = -32.831 ± 0.05 kcal/mol | Kistiakowsky 1935 | | 0.7 | 2368.14 | CH2CCH2 (g) + CH4 (g) → 2 C2H4 (g) | ΔrH°(0 K) = -8.78 ± 0.8 kJ/mol | Ferguson 2013, est unc | | 0.6 | 1565.2 | CO (g) → C+ (g) + O (g) | ΔrH°(0 K) = 22.3713 ± 0.0015 eV | Ng 2007 | | 0.4 | 2368.11 | CH2CCH2 (g) + CH4 (g) → 2 C2H4 (g) | ΔrH°(0 K) = -2.24 ± 0.25 kcal/mol | Karton 2009b, Karton 2011 | | 0.4 | 1519.7 | C (graphite) + O2 (g) → CO2 (g) | ΔrH°(298.15 K) = -393.464 ± 0.024 kJ/mol | Hawtin 1966, note CO2e | | 0.4 | 1780.2 | C2H4 (g) + H2 (g) → C2H6 (g) | ΔrG°(723.15 K) = -10.867 ± 0.072 kcal/mol | Kistiakowsky 1951 | | 0.3 | 1855.5 | 2 C2H4 (g) → HCCH (g) + C2H6 (g) | ΔrH°(0 K) = 9.26 ± 0.20 kcal/mol | Karton 2007 | | 0.3 | 1766.1 | C2H4 (g) → 2 C (g) + 4 H (g) | ΔrH°(0 K) = 2226.23 ± 0.70 kJ/mol | Harding 2007, Ferguson 2013 | | 0.3 | 1856.1 | C2H4 (g) → [HCCH]+ (g) + H2 (g) | ΔrH°(0 K) = 13.135 ± 0.005 (×1.139) eV | Malow 1999, est unc | | 0.3 | 1856.2 | C2H4 (g) → [HCCH]+ (g) + H2 (g) | ΔrH°(0 K) = 13.135 ± 0.005 (×1.139) eV | Mahnert 1996 | | 0.3 | 2368.12 | CH2CCH2 (g) + CH4 (g) → 2 C2H4 (g) | ΔrH°(0 K) = -2.38 ± 0.3 kcal/mol | Wheeler 2007 | | 0.3 | 2267.12 | CH3CH2CH3 (g) + CH4 (g) → 2 C2H6 (g) | ΔrH°(0 K) = 2.96 ± 0.20 kcal/mol | Karton 2011, Karton 2009b |
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Top 10 species with enthalpies of formation correlated to the ΔfH° of CH3CH2Cl (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 | | 97.4 | Ethyl chloride | CH3CH2Cl (cr,l) |  | -134.15 | -135.77 | ± 0.21 | kJ/mol | 64.5138 ±
0.0019 | 75-00-3*500 | | 58.0 | Ethylene | C2H4 (g) |  | 60.96 | 52.45 | ± 0.13 | kJ/mol | 28.0532 ±
0.0016 | 74-85-1*0 | | 58.0 | Ethylene cation | [C2H4]+ (g) | ![C=[CH2+]](../images/495.png) | 1075.28 | 1068.07 | ± 0.13 | kJ/mol | 28.0526 ±
0.0016 | 34470-02-5*0 | | 39.3 | Ethane | C2H6 (g) |  | -68.29 | -83.91 | ± 0.14 | kJ/mol | 30.0690 ±
0.0017 | 74-84-0*0 | | 29.3 | Acetylene cation | [HCCH]+ (g) | ![C#[CH+]](../images/355.png) | 1328.85 | 1328.18 | ± 0.14 | kJ/mol | 26.0367 ±
0.0016 | 25641-79-6*0 | | 29.3 | Acetylene | HCCH (g) |  | 228.84 | 228.28 | ± 0.14 | kJ/mol | 26.0373 ±
0.0016 | 74-86-2*0 | | 28.3 | Carbon atom | C (g) | ![[C]](../images/16.png) | 711.401 | 716.886 | ± 0.050 | kJ/mol | 12.01070 ±
0.00080 | 7440-44-0*0 | | 28.3 | Carbon atom | C (g, triplet) | ![[C]](../images/844.png) | 711.401 | 716.886 | ± 0.050 | kJ/mol | 12.01070 ±
0.00080 | 7440-44-0*1 | | 28.3 | Carbon atom | C (g, singlet) | ![[C]](../images/704.png) | 833.332 | 838.478 | ± 0.050 | kJ/mol | 12.01070 ±
0.00080 | 7440-44-0*2 | | 28.3 | Carbon atom cation | C+ (g) | ![[C+]](../images/310.png) | 1797.854 | 1803.452 | ± 0.050 | kJ/mol | 12.01015 ±
0.00080 | 14067-05-1*0 |
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Most Influential reactions involving CH3CH2Cl (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 | | 0.864 | 3728.1 | C2H4 (g) + HCl (g) → CH3CH2Cl (g) | ΔrG°(471 K) = -10.007 ± 0.175 kJ/mol | Lane 1953, 3rd Law | | 0.255 | 3729.13 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrG°(278.276 K) = 0.673 ± 0.092 kJ/mol | Gordon 1948, 3rd Law, ThermoData 2004 | | 0.249 | 3729.11 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrG°(283.123 K) = 0.246 ± 0.093 kJ/mol | Howlett 1955, 3rd Law, ThermoData 2004 | | 0.216 | 3729.4 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrH°(285.42 K) = 24.897 ± 0.10 kJ/mol | Gordon 1948, ThermoData 2004, Manion 2002 | | 0.196 | 3729.9 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrG°(298.281 K) = -1.062 ± 0.105 kJ/mol | ThermoData 2004, 3rd Law | | 0.089 | 3726.1 | CH3CH2Cl (g) + 3 O2 (g) → 2 CO2 (g) + HCl (aq, 600 H2O) + 2 H2O (cr,l) | ΔrH°(298.15 K) = -337.73 ± 0.14 (×1.114) kcal/mol | Fletcher 1971, as quoted by Pedley 1986 | | 0.044 | 3728.3 | C2H4 (g) + HCl (g) → CH3CH2Cl (g) | ΔrG°(486.9 K) = -8.75 ± 0.47 (×1.646) kJ/mol | Howlett 1955, 3rd Law | | 0.027 | 3729.2 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrH°(298.15 K) = 24.15 ± 0.24 (×1.164) kJ/mol | ThermoData 2004 | | 0.024 | 3729.3 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrH°(298.15 K) = 24.6 ± 0.3 kJ/mol | Manion 2002 | | 0.013 | 3729.1 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrH°(298.15 K) = 24.35 ± 0.40 kJ/mol | NBS Tables 1989 | | 0.011 | 3723.4 | CH3CH2Cl (g) + CH3F (g) → CH3CH2F (g) + CH3Cl (g) | ΔrH°(0 K) = -1.54 ± 1.0 kcal/mol | Ruscic G4 | | 0.011 | 3723.7 | CH3CH2Cl (g) + CH3F (g) → CH3CH2F (g) + CH3Cl (g) | ΔrH°(0 K) = -1.72 ± 1.0 kcal/mol | Parthiban 2001, Ruscic W1RO | | 0.009 | 3723.3 | CH3CH2Cl (g) + CH3F (g) → CH3CH2F (g) + CH3Cl (g) | ΔrH°(0 K) = -1.60 ± 1.1 kcal/mol | Ruscic G3X | | 0.009 | 3729.5 | CH3CH2Cl (cr,l) → CH3CH2Cl (g) | ΔrH°(290.459 K) = 25.217 ± 0.10 (×4.757) kJ/mol | Yates 1926, ThermoData 2004 | | 0.008 | 3723.2 | CH3CH2Cl (g) + CH3F (g) → CH3CH2F (g) + CH3Cl (g) | ΔrH°(0 K) = -1.52 ± 1.2 kcal/mol | Ruscic G3 | | 0.008 | 3723.1 | CH3CH2Cl (g) + CH3F (g) → CH3CH2F (g) + CH3Cl (g) | ΔrH°(0 K) = -1.56 ± 1.2 kcal/mol | Ruscic G3B3 | | 0.007 | 3750.1 | CH3CH2Cl (g) → [CH3CH2]+ (g) + Cl (g) | ΔrH°(0 K) = 11.74 ± 0.04 eV | Traeger 1981, AE corr, note unc2 | | 0.006 | 3723.6 | CH3CH2Cl (g) + CH3F (g) → CH3CH2F (g) + CH3Cl (g) | ΔrH°(0 K) = -1.47 ± 1.3 kcal/mol | Ruscic CBS-n | | 0.006 | 3724.7 | CH3CH2Cl (g) + HF (g) → CH3CH2F (g) + HCl (g) | ΔrH°(0 K) = 4.95 ± 1.2 kcal/mol | Parthiban 2001, Ruscic W1RO | | 0.005 | 3722.7 | CH3CH2Cl (g) + CH4 (g) → CH3Cl (g) + C2H6 (g) | ΔrH°(0 K) = 4.80 ± 1.0 kcal/mol | Parthiban 2002, Parthiban 2001, 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. 1.122 of the Thermochemical Network (2016); available at ATcT.anl.gov |
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4
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B. Ruscic,
Active Thermochemical Tables: Sequential Bond Dissociation Enthalpies of Methane, Ethane, and Methanol and the Related Thermochemistry.
J. Phys. Chem. A 119, 7810-7837 (2015)
[DOI: 10.1021/acs.jpca.5b01346]
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5
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S. J. Klippenstein, L. B. Harding, and B. Ruscic,
Ab initio Computations and Active Thermochemical Tables Hand in Hand: Heats of Formation of Core Combustion Species.
J. Phys. Chem. A 121, 6580-6602 (2017)
[DOI: 10.1021/acs.jpca.7b05945]
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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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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]).
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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