Bis(η6-1,3,5-trimethylbenzene) chromium
- Formula: C18H24Cr
- Molecular weight: 292.3793
- CAS Registry Number: 1274-07-3
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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 | 58. ± 25. | kJ/mol | Review | Martinho Simões | |
| ΔfH°gas | 63.6 ± 6.6 | kJ/mol | Review | Martinho Simões |
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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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 |
|---|---|---|---|
| 5.47 ± 0.05 | EI | Herberich and Muller, 1969 | RDSH |
| 4.97 | PE | Cabelli, Cowley, et al., 1982 | Vertical value; LBLHLM |
| 5.01 ± 0.05 | PE | Evans, Green, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C9H12Cr+ | 9.3 ± 0.1 | ? | EI | Herberich and Muller, 1969 | RDSH |
| Cr+ | 12.1 ± 0.2 | ? | EI | Herberich and Muller, 1969 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Notes
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]
Herberich and Muller, 1969
Herberich, G.E.; Muller, J.,
Massenspektren und Stabilitaten von Diaromatenchrom-Komplexen,
J.Organometal. Chem., 1969, 16, 111. [all data]
Cabelli, Cowley, et al., 1982
Cabelli, D.E.; Cowley, A.H.; Lagowski, J.J.,
The bonding in some bis(arene)chromium compounds as indicated by U. V. photoelectron zpectroscopy,
Inorg. Chim. Acta, 1982, 57, 195. [all data]
Evans, Green, et al., 1974
Evans, S.; Green, J.C.; Jackson, S.E.; Higginson, B.,
He(I) photoelectron spectra of some transition-metal sandwich complexes,
J. Chem. Soc. Dalton Trans., 1974, 304. [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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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