manganese difluoride


Reaction 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: John E. Bartmess

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Individual Reactions

Fluorine anion + F2Mn = (Fluorine anion • F2Mn)

By formula: F- + F2Mn = (F- • F2Mn)

Quantity Value Units Method Reference Comment
Δr83.9 ± 3.8kcal/molTDAsBoltalina, Borshchevskii, et al., 1992gas phase; Critical review; value altered from reference due to conversion from electron convention to ion convention
Δr93.4 ± 2.0kcal/molTDEqSidorov and Gubarevich, 1982gas phase; Fluoride Affinity: 23.2±0.8 kcal/mol < AlF3; value altered from reference due to conversion from electron convention to ion convention
Δr102.70kcal/molTDEqSidorov, Sorokin, et al., 1981gas phase; value altered from reference due to conversion from electron convention to ion convention

F3Mn- + F2Mn = F5Mn2-

By formula: F3Mn- + F2Mn = F5Mn2-

Quantity Value Units Method Reference Comment
Δr49.1 ± 2.0kcal/molTDAsSidorov and Gubarevich, 1982gas phase; At 1125K; value altered from reference due to conversion from electron convention to ion convention

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry 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 F2Mn+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
4.36 ± 0.15TDEqSidorov and Gubarevich, 1982value altered from reference due to conversion from electron convention to ion convention; B

Ionization energy determinations

IE (eV) Method Reference Comment
11.4 ± 0.2EIEhlert and Hsia, 1973LLK
12.5 ± 0.5EIZmbov, Uy, et al., 1969RDSH
11.7 ± 0.5EIZmbov and Margrave, 1968RDSH
13.4 ± 0.5EIZmbov and Margrave, 1967RDSH
11.5 ± 0.3EIKent, Ehlert, et al., 1964RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
MnF+13.5 ± 0.5FEIZmbov, Uy, et al., 1969RDSH
MnF+14.5 ± 0.5FEIZmbov and Margrave, 1968RDSH
MnF+14.5FEIKent, Ehlert, et al., 1964RDSH
Mn+13.0 ± 0.5?EIZmbov, Uy, et al., 1969RDSH

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.

Boltalina, Borshchevskii, et al., 1992
Boltalina, O.V.; Borshchevskii, A.Y.; Sidorov, L.N., Thermochemistry of 3d Elements Fluorides and Their Negative Ions in Gas Phase, Russ. J. Phys. Chem., 1992, 66, 1223. [all data]

Sidorov and Gubarevich, 1982
Sidorov, L.N.; Gubarevich, G.D., Dissociation of the Gaseous Complex Fluorides. Alkali Metal Trifluoromanganates and Tetrafluoromanganates, Koord. Khim., 1982, 8, 12708c. [all data]

Sidorov, Sorokin, et al., 1981
Sidorov, L.N.; Sorokin, I.D.; Nitikin, N.I.; Skokan, E.V., Effusion method for determining the electron affinity and heat of formation of negative ions, Int. J. Mass Spectrom. Ion Phys., 1981, 39, 311. [all data]

Ehlert and Hsia, 1973
Ehlert, T.C.; Hsia, M., Mass spectrometric and thermochemical studies of the manganese fluorides, J. Fluorine Chem., 1973, 2, 33. [all data]

Zmbov, Uy, et al., 1969
Zmbov, K.F.; Uy, O.M.; Margrave, J.L., Mass spectrometric studies at high temperatures. XXXI. Stabilities of tungsten and molybdenum oxyfluorides, J. Phys. Chem., 1969, 73, 3008. [all data]

Zmbov and Margrave, 1968
Zmbov, K.F.; Margrave, J.L., Mass spectrometric studies at high temperatures. XXII. The stabilities of tantalum pentafluoride and tantalum oxytrifluoride, J. Phys. Chem., 1968, 72, 1099. [all data]

Zmbov and Margrave, 1967
Zmbov, K.F.; Margrave, J.L., Mass spectrometric studies at high temperatures. XXI. The heat of atomization of galium oxyfluoride, J. Inorg. Nucl. Chem., 1967, 29, 2649. [all data]

Kent, Ehlert, et al., 1964
Kent, R.A.; Ehlert, T.C.; Margrave, J.L., Mass spectrometric studies at high temperatures. V. The sublimation pressure of manganese(II) fluoride and the dissociation energy of manganese(I) fluoride, J. Am. Chem. Soc., 1964, 86, 5090. [all data]


Notes

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