Germanium dibromide
- Formula: Br2Ge
- Molecular weight: 232.45
- CAS Registry Number: 24415-00-7
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Phase change 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: William E. Acree, Jr., James S. Chickos
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
|---|---|---|---|
| 2.77 | 409.2 | DSC | Zelenina, Chusova, et al., 2006 |
Gas phase ion energetics data
Go To: Top, Phase change 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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to Br2Ge+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| >1.60001 | EIAE | Pabst, Margrave, et al., 1977 | From GeBr4; G2MP2 calculations agree closely with this.; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.60 ± 0.05 | PE | Jonkers, Van Der Kerk, et al., 1982 | LBLHLM |
| 9.5 ± 0.3 | EI | Uy, Muenow, et al., 1969 | RDSH |
| 10.02 ± 0.03 | PE | Jonkers, Van Der Kerk, et al., 1982 | Vertical value; LBLHLM |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Br+ | 17.5 ± 0.5 | ? | EI | Uy, Muenow, et al., 1969 | RDSH |
| GeBr+ | 11.0 ± 0.3 | Br | EI | Uy, Muenow, et al., 1969 | RDSH |
| Ge+ | 15.5 ± 0.5 | ? | EI | Uy, Muenow, et al., 1969 | RDSH |
References
Go To: Top, Phase change 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.
Zelenina, Chusova, et al., 2006
Zelenina, L.N.; Chusova, T.P.; Stenin, Yu.G.; Berezovskii, G.A.,
A calorimetric study of germanium dibromide,
Russ. J. Phys. Chem., 2006, 80, 12, 1911-1914, https://doi.org/10.1134/S0036024406120077
. [all data]
Pabst, Margrave, et al., 1977
Pabst, R.E.; Margrave, J.L.; Franklin, J.L.,
Electron impact studies of the tetrachlorides and tetrabromides of silicon and germanium,
Int. J. Mass Spectrom. Ion Phys., 1977, 25, 361. [all data]
Jonkers, Van Der Kerk, et al., 1982
Jonkers, G.; Van Der Kerk, S.M.; De Lange, C.A.,
He(I) photoelectron spectroscopy of transient species: Germanium dichloride and germanium dibromide,
Chem. Phys., 1982, 70, 69. [all data]
Uy, Muenow, et al., 1969
Uy, O.M.; Muenow, D.W.; Margrave, J.L.,
Mass spectrometric studies at high temperatures. Part 35. Stabilities of gaseous GeCl2 and GeBr2,
J. Chem. Soc. Faraday Trans., 1969, 65, 1296. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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