chromium difluoride
- Formula: CrF2
- Molecular weight: 89.9929
- CAS Registry Number: 10049-10-2
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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
B - John E. Bartmess
View reactions leading to CrF2+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.80 ± 0.29 | R-A | Boltalina, Borshchevskii, et al., 1991 | Data at 0 K. See also Pramann and Rademann, 1999; value altered from reference due to conversion from electron convention to ion convention; B |
| 1.50 ± 0.40 | EIAE | Flesch, White, et al., 1969 | From CrO2F2; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.6 ± 0.3 | EI | Malkerova, Alikhanyan, et al., 1979 | LLK |
| 10.1 ± 0.3 | EI | Kent and Margrave, 1965 | RDSH |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| FCr+ | 14.7 ± 0.5 | F | EI | Malkerova, Alikhanyan, et al., 1979 | LLK |
References
Go To: Top, 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.
Boltalina, Borshchevskii, et al., 1991
Boltalina, O.V.; Borshchevskii, A.Y.; Sidorov, L.N.,
Thermochemistry of Chromium Gaseous Fluorides and Their Negative Ions,
Zh. Fiz. Khim. SSSR, 1991, 65, 884. [all data]
Pramann and Rademann, 1999
Pramann, A.; Rademann, K.,
Mass-spectrometric study of formation and stability of manganese and manganese oxide cluster anions,
Int. J. Mass Spectrom., 1999, 187, 673-683, https://doi.org/10.1016/S1387-3806(98)14197-0
. [all data]
Flesch, White, et al., 1969
Flesch, G.D.; White, R.M.; Svec, H.J.,
The Positive and Negative Ion Mass Spectra of Chromyl Chloride and Chromyl Fluoride,
Int. J. Mass Spectrom. Ion Phys., 1969, 3, 5, 239, https://doi.org/10.1016/0020-7381(69)80079-3
. [all data]
Malkerova, Alikhanyan, et al., 1979
Malkerova, I.P.; Alikhanyan, A.S.; Pervov, V.S.; Tripol'skaya, T.A.; Gorgoraki, V.I.; Malyusov, V.A.,
High-temperature investigations of chromium lower fluorides,
Russ. J. Inorg. Chem., 1979, 24, 1775. [all data]
Kent and Margrave, 1965
Kent, R.A.; Margrave, J.L.,
Mass spectrometric studies at high temperatures. VII. The sublimation pressure of chromium(II) fluoride and the dissociation energy of chromium(I) fluoride,
J. Am. Chem. Soc., 1965, 87, 3582. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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