manganese difluoride
- Formula: F2Mn
- Molecular weight: 92.934851
- CAS Registry Number: 7782-64-1
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Reaction thermochemistry data
Go To: Top, 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. 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
+ F2Mn = (
• F2Mn)
By formula: F- + F2Mn = (F- • F2Mn)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 83.9 ± 3.8 | kcal/mol | TDAs | Boltalina, Borshchevskii, et al., 1992 | gas phase; Critical review; value altered from reference due to conversion from electron convention to ion convention |
| ΔrH° | 93.4 ± 2.0 | kcal/mol | TDEq | Sidorov and Gubarevich, 1982 | gas phase; Fluoride Affinity: 23.2±0.8 kcal/mol < AlF3; value altered from reference due to conversion from electron convention to ion convention |
| ΔrH° | 102.70 | kcal/mol | TDEq | Sidorov, Sorokin, et al., 1981 | gas phase; value altered from reference due to conversion from electron convention to ion convention |
By formula: F3Mn- + F2Mn = F5Mn2-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 49.1 ± 2.0 | kcal/mol | TDAs | Sidorov and Gubarevich, 1982 | gas 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 ± 0.15 | TDEq | Sidorov and Gubarevich, 1982 | value altered from reference due to conversion from electron convention to ion convention; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 11.4 ± 0.2 | EI | Ehlert and Hsia, 1973 | LLK |
| 12.5 ± 0.5 | EI | Zmbov, Uy, et al., 1969 | RDSH |
| 11.7 ± 0.5 | EI | Zmbov and Margrave, 1968 | RDSH |
| 13.4 ± 0.5 | EI | Zmbov and Margrave, 1967 | RDSH |
| 11.5 ± 0.3 | EI | Kent, Ehlert, et al., 1964 | RDSH |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| MnF+ | 13.5 ± 0.5 | F | EI | Zmbov, Uy, et al., 1969 | RDSH |
| MnF+ | 14.5 ± 0.5 | F | EI | Zmbov and Margrave, 1968 | RDSH |
| MnF+ | 14.5 | F | EI | Kent, Ehlert, et al., 1964 | RDSH |
| Mn+ | 13.0 ± 0.5 | ? | EI | Zmbov, Uy, et al., 1969 | RDSH |
References
Go To: Top, Reaction thermochemistry data, 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., 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
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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