Selected ATcT [1, 2] enthalpy of formation based on version 1.122g of the Thermochemical Network [3]

This version of ATcT results was generated from an expansion of version 1.122e [4] to include results centered on the determination of the appearance energy of CH3+ from CH4. [5].

Species Name Formula Image    ΔfH°(0 K)    ΔfH°(298.15 K) Uncertainty Units Relative
Molecular
Mass		 ATcT ID
Peroxyhypochlorous acid anion[HOOCl]- (g, trans quartet)OO[Cl-]-2.9-3.3± 2.6kJ/mol68.4600 ±
0.0011		*67952-08-3*1

Representative Geometry of [HOOCl]- (g, trans quartet)

spin ON           spin OFF
          

Top contributors to the provenance of ΔfH° of [HOOCl]- (g, trans quartet)

The 14 contributors listed below account for 92.0% of the provenance of ΔfH° of [HOOCl]- (g, trans quartet).

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.

Contribution
(%)		TN
ID		 Reaction Measured Quantity Reference
21.5904.4 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.087 ± 0.050 eVRuscic W1RO
14.4904.2 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.071 ± 0.061 eVRuscic G4
11.6903.4 [HOOCl]- (g, cis quartet) → HOOCl (g) ΔrH°(0 K) = 0.375 ± 0.050 eVRuscic W1RO
7.8903.2 [HOOCl]- (g, cis quartet) → HOOCl (g) ΔrH°(0 K) = 0.400 ± 0.061 eVRuscic G4
7.4904.1 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.003 ± 0.085 eVRuscic G3X
6.3904.3 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.098 ± 0.092 eVRuscic CBS-n
4.0903.1 [HOOCl]- (g, cis quartet) → HOOCl (g) ΔrH°(0 K) = 0.316 ± 0.085 eVRuscic G3X
3.4903.3 [HOOCl]- (g, cis quartet) → HOOCl (g) ΔrH°(0 K) = 0.378 ± 0.092 eVRuscic CBS-n
3.0905.4 2 HOOCl (g) → H2O2 (g) + ClOOCl (g) ΔrH°(0 K) = -0.35 ± 0.9 kcal/molRuscic W1RO
2.7909.4 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2327 ± 300 cm-1Ruscic W1RO
2.5909.2 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2538 ± 310 cm-1Ruscic G4
2.4909.1 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2655 ± 315 cm-1Ruscic G3X
2.4905.2 2 HOOCl (g) → H2O2 (g) + ClOOCl (g) ΔrH°(0 K) = -0.55 ± 1.0 kcal/molRuscic G4
2.0905.1 2 HOOCl (g) → H2O2 (g) + ClOOCl (g) ΔrH°(0 K) = -0.72 ± 1.1 kcal/molRuscic G3X

Top 10 species with enthalpies of formation correlated to the ΔfH° of [HOOCl]- (g, trans quartet)

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.

Correlation
Coefficent
(%)		Species Name Formula Image    ΔfH°(0 K)    ΔfH°(298.15 K) Uncertainty Units Relative
Molecular
Mass		 ATcT ID
77.2 Peroxyhypochlorous acid anion[HOOCl]- (g, cis quartet)OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011		*67952-08-3*2
77.2 Peroxyhypochlorous acid anion[HOOCl]- (g, quartet)OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011		*67952-08-3*0
36.6 Peroxyhypochlorous acidHOOCl (g)OOCl3.94-1.33± 0.95kJ/mol68.4594 ±
0.0011		67952-07-2*0
14.0 Peroxyhypochlorous acid cation[HOOCl]+ (g)OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011		*67952-07-2*0
14.0 Peroxyhypochlorous acid cation[HOOCl]+ (g, trans)OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011		*67952-07-2*1
14.0 Peroxyhypochlorous acid cation[HOOCl]+ (g, cis)OO[Cl+]1050.81045.1± 2.5kJ/mol68.4589 ±
0.0011		*67952-07-2*2
7.7 Chlorooxy hypochloriteClOOCl (g)ClOOCl134.56131.32± 0.56kJ/mol102.9042 ±
0.0019		12292-23-8*0
6.8 Chloryl hydrideHCl(O)O (g)[H][Cl](=O)=O197.6191.2± 1.6kJ/mol68.4594 ±
0.0011		174365-32-3*0
4.1 Chloro hypochloriteClOCl (g)ClOCl79.7877.97± 0.36kJ/mol86.9048 ±
0.0018		7791-21-1*0
3.5 Chlorous acidHOClO (g)OCl=O25.7320.68± 0.63kJ/mol68.4594 ±
0.0011		13898-47-0*0

Most Influential reactions involving [HOOCl]- (g, trans quartet)

Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.

Influence
Coefficient		 TN
ID		 Reaction Measured Quantity Reference
0.248904.4 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.087 ± 0.050 eVRuscic W1RO
0.237909.4 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2327 ± 300 cm-1Ruscic W1RO
0.222909.2 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2538 ± 310 cm-1Ruscic G4
0.215909.1 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2655 ± 315 cm-1Ruscic G3X
0.174909.3 [HOOCl]- (g, cis quartet) → [HOOCl]- (g, trans quartet) ΔrH°(0 K) = 2262 ± 350 cm-1Ruscic CBS-n
0.167904.2 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.071 ± 0.061 eVRuscic G4
0.086904.1 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.003 ± 0.085 eVRuscic G3X
0.073904.3 [HOOCl]- (g, trans quartet) → HOOCl (g) ΔrH°(0 K) = 0.098 ± 0.092 eVRuscic CBS-n
References (for your convenience, also available in RIS and BibTex format)
1   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]
2   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]
3   B. Ruscic and D. H. Bross,
Active Thermochemical Tables (ATcT) values based on ver. 1.122g of the Thermochemical Network (2019); available at ATcT.anl.gov
4   J. P. Porterfield, D. H. Bross, B. Ruscic, J. H. Thorpe, T. L. Nguyen, J. H. Baraban, J. F. Stanton, J. W. Daily, and G. B. Ellison,
Thermal Decomposition of Potential Ester Biofuels, Part I: Methyl Acetate and Methyl Butanoate.
J. Chem. Phys. A 121, 4658-4677 (2017) [DOI: 10.1021/acs.jpca.7b02639] (Veronica Vaida Festschrift)
5   Y.-C. Chang, B. Xiong, D. H. Bross, B. Ruscic, and C. Y. Ng,
A Vacuum Ultraviolet laser Pulsed Field Ionization-Photoion Study of Methane (CH4): Determination of the Appearance Energy of Methylium From Methane with Unprecedented Precision and the Resulting Impact on the Bond Dissociation Energies of CH4 and CH4+.
Phys. Chem. Chem. Phys. 19, 9592-9605 (2017) [DOI: 10.1039/c6cp08200a] (part of 2017 PCCP Hot Articles collection)
6   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]
Formula
The aggregate state is given in parentheses following the formula, such as: g - gas-phase, cr - crystal, l - liquid, etc.
Uncertainties
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.
Website Functionality Credits
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/.
Acknowledgement
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.