Chromium,bis[(1,2,3,4,5-η6)-hexamethylbenzene]-
- Formula: C24H36Cr
- Molecular weight: 376.5387
- CAS Registry Number: 12243-39-9
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Gas phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -69.8 ± 7.9 | kJ/mol | Review | Martinho Simões |
Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -188.8 ± 6.8 | kJ/mol | Review | Martinho Simões |
Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 119.0 ± 4.0 | kJ/mol | TD-HFC, HAL-HFC | Connor, Martinho-Simoes, et al., 1979 |
Gas phase ion energetics data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
5.19 ± 0.05 | EI | Herberich and Muller, 1969 | RDSH |
4.68 | PE | Connor, Martinho-Simoes, et al., 1979 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C12H18Cr+ | 10.3 ± 0.2 | ? | EI | Herberich and Muller, 1969 | RDSH |
Cr+ | 14.0 ± 0.4 | ? | EI | Herberich and Muller, 1969 | RDSH |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Connor, Martinho-Simoes, et al., 1979
Connor, J.A.; Martinho-Simoes, J.A.; Skinner, H.A.; Zafarani-Moattar, M.T.,
Thermochemistry of bis-arene arenetricarbonyl-chromium compounds containing hexamethylbenzene, 1,3,5-tri-methylbenzene and naphthalene,
J. Organomet. Chem., 1979, 179, 331. [all data]
Herberich and Muller, 1969
Herberich, G.E.; Muller, J.,
Massenspektren und Stabilitaten von Diaromatenchrom-Komplexen,
J.Organometal. Chem., 1969, 16, 111. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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