germanium diiodide
- Formula: GeI2
- Molecular weight: 326.45
- IUPAC Standard InChI: InChI=1S/GeI2/c2-1-3
- IUPAC Standard InChIKey: IAGYEMVJHPEPGE-UHFFFAOYSA-N
- CAS Registry Number: 13573-08-5
- Chemical structure:
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 20.8 ± 0.7 | kcal/mol | N/A | Titov, Zelenina, et al., 1999 | |
| ΔsubH° | 20.7 ± 0.7 | kcal/mol | N/A | Titov, Zelenina, et al., 1999 | |
| ΔsubH° | 18.3 ± 1.4 | kcal/mol | TE | Ferro and Stranges, 1987 | Based on data from 323. to 420. K. |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference |
|---|---|---|
| 7.96 | 701.2 | Zelenina, Titov, et al., 2003 |
| 4.57 | 419. | Zelenina, Minenkov, et al., 1998 |
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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.9 | PE | Jonkers, Van Der Kerk, et al., 1983 | LBLHLM |
| 9.08 ± 0.03 | PE | Jonkers, Van Der Kerk, et al., 1983 | Vertical value; LBLHLM |
References
Go To: Top, Phase change data, Gas phase ion energetics data, NIST Free Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Titov, Zelenina, et al., 1999
Titov, V.A.; Zelenina, L.N.; Chusova, T.P.,
The thermodynamic characteristics of sublimation and vaporization of germanium tetraiodide,
Zh. Fiz. Khim., 1999, 73, 6, 951. [all data]
Ferro and Stranges, 1987
Ferro, D.; Stranges, S.,
Vapour pressure and sublimation enthalpy of Gel4,
Thermochimica Acta, 1987, 119, 2, 373-375, https://doi.org/10.1016/0040-6031(87)80274-5
. [all data]
Zelenina, Titov, et al., 2003
Zelenina, L.N.; Titov, V.A.; Chusova, T.P.; Stenin, Yu.G.; Titov, A.A.,
On the thermodynamic properties of germanium-iodide compounds,
The Journal of Chemical Thermodynamics, 2003, 35, 10, 1601-1612, https://doi.org/10.1016/S0021-9614(03)00123-X
. [all data]
Zelenina, Minenkov, et al., 1998
Zelenina, L.N.; Minenkov, Yu.F.; Stenin, Yu.G.; Titov, V.A.; Chusova, T.P.,
Heat capacity of crystalline germanium tetraiodide,
Zh. Fiz. Khim., 1998, 72, 5, 803. [all data]
Jonkers, Van Der Kerk, et al., 1983
Jonkers, G.; Van Der Kerk, S.M.; Mooyman, R.; De Lange, C.A.; Snijders, J.G.,
UV photoelectron apectroscopy of transient species: Germanium diiodide (GeI2),
Chem. Phys. Lett., 1983, 94, 585. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, NIST Free Links, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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