Uranium hexafluoride

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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

Electron affinity determinations

EA (eV) Method Reference Comment
5.06 ± 0.20R-ABorshchevskii, Boltalina, et al., 1988value altered from reference due to conversion from electron convention to ion convention; B
5.51 ± 0.31R-APyatenko, Guasarov, et al., 1984Critical review; value altered from reference due to conversion from electron convention to ion convention; B
5.13 ± 0.31R-ASkokan, Sorokin, et al., 1983Fluoride Affinity: 13.1±2 kcal > UF4; value altered from reference due to conversion from electron convention to ion convention; B
>5.099621NBIECompton, 1977B
4.90 ± 0.50IMRBBeauchamp, 1976Endo F- transfer to BF3 at 1.5 eV observed; B
6.33 ± 0.50TDEqPyatenko, Gusarov, et al., 1980B
5.98 ± 0.43R-AMallouk, Rosenthal, et al., 1984B
>5.499959IMRBAnnis and Stockdale, 1980B
>3.6079IMRBStreit and Newton, 1980B
>4.30 ± 0.40NBIEMathur, Rothe, et al., 1977B
2.90973SIPage and Goode, 1969The Magnetron method, lacking mass analysis, is not considered reliable.; B

Ionization energy determinations

IE (eV) Method Reference Comment
14.00 ± 0.10EIHildenbrand, 1977LLK
14.14PEPotts, Lempka, et al., 1970Vertical value; RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
F4U+17.4 ± 0.12FEIHildenbrand, 1977LLK
F5U+14.24 ± 0.10FEIHildenbrand, 1977LLK

Ion clustering 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: 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 + Uranium hexafluoride = (Fluorine anion • Uranium hexafluoride)

By formula: F- + F6U = (F- • F6U)

Quantity Value Units Method Reference Comment
Δr237. ± 30.kJ/molTherPyatenko, Guasarov, et al., 1984gas phase; Critical review; value altered from reference due to conversion from electron convention to ion convention
Δr190. ± 42.kJ/molIMRBBeauchamp, 1976gas phase

References

Go To: Top, 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.

Borshchevskii, Boltalina, et al., 1988
Borshchevskii, A.Ya.; Boltalina, O.V.; Sorokin, I.D.; Sidorov, L.N., Thermochemical Quantities for Gas Phase Iron, Uranium, and Molybdenum Fluorides, and Their Negative Ions., J. Chem. Thermodyn., 1988, 20, 5, 523, https://doi.org/10.1016/0021-9614(88)90080-8 . [all data]

Pyatenko, Guasarov, et al., 1984
Pyatenko, A.T.; Guasarov, A.V.; Gorokhov, L.N., Thermochemistry of Negative Ions in the U-F System, Russ. J. Phys. Chem., 1984, 58, 1. [all data]

Skokan, Sorokin, et al., 1983
Skokan, E.V.; Sorokin, I.D.; Nikitin, M.I.; Chilingarov, N.S.; Sidorov, L.N., The electron affinity of UF6, Russ. J. Phys. Chem., 1983, 57, 1745. [all data]

Compton, 1977
Compton, R.N., On the formation of positive and negative ions in gaseous UF6, J. Chem. Phys., 1977, 66, 4478. [all data]

Beauchamp, 1976
Beauchamp, J.L., Ion cyclotron resonance studies of endothermic reactions of UF6-Generated by surface ionization, J. Chem. Phys., 1976, 64, 929. [all data]

Pyatenko, Gusarov, et al., 1980
Pyatenko, A.T.; Gusarov, A.V.; Gorokhov, L.N., Thermochemical Properties of Negative Ions in Vapor over UF4, High Temp., 1980, 18, 857. [all data]

Mallouk, Rosenthal, et al., 1984
Mallouk, T.E.; Rosenthal, G.L.; Muller, G.; Brusasco, R.; Bartlett, N., Fluoride ion affinities of GeF4 and BF4 from thermodynamic and structural data for (SF2)2GeF6, ClO2GeF5, and ClO2BF4, Inorg. Chem., 1984, 23, 3167. [all data]

Annis and Stockdale, 1980
Annis, B.K.; Stockdale, J.A.D., Internal excitation of UF6- ions in collisions with argon atoms, Chem. Phys. Lett., 1980, 74, 365. [all data]

Streit and Newton, 1980
Streit, G.E.; Newton, T.W., Negative ion-uranium hexafluoride charge transfer reactions, J. Chem. Phys., 1980, 73, 3178. [all data]

Mathur, Rothe, et al., 1977
Mathur, B.P.; Rothe, R.W.; Reck, G.P., Ionization reactions of metal hexafluorides with alkali atoms and dimers, J. Chem. Phys., 1977, 67, 377. [all data]

Page and Goode, 1969
Page, F.M.; Goode, G.C., Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]

Hildenbrand, 1977
Hildenbrand, D.L., Thermochemistry of gaseous UF5 and UF4, J. Chem. Phys., 1977, 66, 4788. [all data]

Potts, Lempka, et al., 1970
Potts, A.W.; Lempka, H.J.; Streets, D.G.; Price, W.C., Photoelectron spectra of the halides of elements in groups III, IV, V and VI, Phil. Trans. Roy. Soc. (London), 1970, A268, 59. [all data]


Notes

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