chromium difluoride


Reaction thermochemistry data

Go To: Top, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Fluorine anion + CrF2 = (Fluorine anion • CrF2)

By formula: F- + CrF2 = (F- • CrF2)

Quantity Value Units Method Reference Comment
Δr86.3 ± 3.8kcal/molTDEqBoltalina, Borshchevskii, et al., 1991gas phase; Data at 0 K. See also Pramann and Rademann, 1999; value altered from reference due to conversion from electron convention to ion convention
Δr157.7 ± 7.7kcal/molTherIgolkinagas phase; The derived values do not seem reasonable - JEB.; value altered from reference due to conversion from electron convention to ion convention

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Ion clustering data, References, Notes

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 ± 0.29R-ABoltalina, Borshchevskii, et al., 1991Data 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 ± 0.40EIAEFlesch, White, et al., 1969From CrO2F2; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.6 ± 0.3EIMalkerova, Alikhanyan, et al., 1979LLK
10.1 ± 0.3EIKent and Margrave, 1965RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
FCr+14.7 ± 0.5FEIMalkerova, Alikhanyan, et al., 1979LLK

Ion clustering data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Fluorine anion + CrF2 = (Fluorine anion • CrF2)

By formula: F- + CrF2 = (F- • CrF2)

Quantity Value Units Method Reference Comment
Δr86.3 ± 3.8kcal/molTDEqBoltalina, Borshchevskii, et al., 1991gas phase; Data at 0 K. See also Pramann and Rademann, 1999; value altered from reference due to conversion from electron convention to ion convention
Δr157.7 ± 7.7kcal/molTherIgolkinagas phase; The derived values do not seem reasonable - JEB.; value altered from reference due to conversion from electron convention to ion convention

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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]

Igolkina
Igolkina, N.A., Negative Ion Molecule Reaction in Chromium Trifluoride Vapor, Dep. Doc. VINITI 7085-83 Pt 1 102. [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

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References