Chromium, pentacarbonyl(1-methoxyethylidene)-
- Formula: C8H6CrO6
- Molecular weight: 250.1257
- CAS Registry Number: 20540-69-6
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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 |
|---|---|---|---|
| 7.5 ± 0.1 | EI | Fischer, Kreiter, et al., 1971 | LLK |
| 7.46 ± 0.05 | EI | Muller and Connor, 1969 | RDSH |
| 7.47 | PE | Block and Fenske, 1977 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| CCrO+ | 13.9 ± 0.2 | ? | EI | Muller and Connor, 1969 | RDSH |
| CH3Cr+ | 15.6 ± 0.3 | ? | EI | Muller and Connor, 1969 | RDSH |
| C2H3CrO+ | 13.9 ± 0.2 | ? | EI | Muller and Connor, 1969 | RDSH |
| C3H6CrO+ | 12.2 ± 0.2 | 5CO | EI | Muller and Connor, 1969 | RDSH |
| C4H6CrO2+ | 10.7 ± 0.1 | 4CO | EI | Muller and Connor, 1969 | RDSH |
| C5H6CrO3+ | 10. ± 0.1 | 3CO | EI | Muller and Connor, 1969 | RDSH |
| C6H6CrO4+ | 8.9 ± 0.1 | 2CO | EI | Muller and Connor, 1969 | RDSH |
| C7H6CrO5+ | 7.92 ± 0.05 | CO | EI | Muller and Connor, 1969 | RDSH |
| Cr+ | 13.6 ± 0.4 | ? | EI | Muller and Connor, 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.
Fischer, Kreiter, et al., 1971
Fischer, E.O.; Kreiter, C.G.; Kollmeier, H.J.; Muller, J.; Fischer, R.D.,
Ubergangsmetall- carben-komplexe. XXVII. Ringsubstituierte (methoxyphenylcarben)-pentacarbonylchrom(0)- komplexe,
J. Organomet. Chem., 1971, 28, 237. [all data]
Muller and Connor, 1969
Muller, J.; Connor, J.A.,
Massenspektroskopische Untersuchungen an Pentacarbonylchrom-carben-Komplexen,
Chem. Ber., 1969, 102, 1148. [all data]
Block and Fenske, 1977
Block, T.F.; Fenske, R.F.,
A photoelectron spectroscopic study of some pentacarbonylchromium carbene complexes,
J. Am. Chem. Soc., 1977, 99, 4321. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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