germanium dioxide
- Formula: GeO2
- Molecular weight: 104.64
- IUPAC Standard InChI: InChI=1S/GeO2/c2-1-3
- IUPAC Standard InChIKey: YBMRDBCBODYGJE-UHFFFAOYSA-N
- CAS Registry Number: 1310-53-8
- Chemical structure:
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Condensed phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -138.6 ± 0.24 | kcal/mol | Review | Cox, Wagman, et al., 1984 | tetragonal phase; CODATA Review value |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 9.491 ± 0.036 | cal/mol*K | Review | Cox, Wagman, et al., 1984 | tetragonal phase; CODATA Review value |
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 by: John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| <2.49999 | LPES | Wang, Wu, et al., 1996 | EA is upper limit to adiabatic EA. Vertical Detachment Energy: 2.93±0.10 eV |
Vibrational and/or electronic energy levels
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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: Marilyn E. Jacox
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| Σg+ | 1 | GeO s-stretch | 870.1 | CH4 | Ra | Friesen, Junker, et al., 2000 | |
| Πu | 2 | Bend | 195.5 | Ar | IR | Andrews and McCluskey, 1992 | |
| Σu+ | 3 | GeO a-stretch | 1052.3 | Ar | IR | Andrews and McCluskey, 1992 Hassanzadeh and Andrews, 1992 | |
| 3 | GeO a-stretch | 1061.6 | N2 | IR | Bos, Ogden, et al., 1974 | ||
Additional references: Jacox, 1994, page 86; Jacox, 2003, page 131
References
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A.,
CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]
Wang, Wu, et al., 1996
Wang, L.S.; Wu, H.; Desai, S.L.; Fan, J.; Colson, S.D.,
A Photoelectron Spectroscopic Study of Small Silicon Oxide Clusters: SiO2, Si2O3, and Si2O4,
J. Phys. Chem., 1996, 100, 21, 8697, https://doi.org/10.1021/jp9602538
. [all data]
Friesen, Junker, et al., 2000
Friesen, M.; Junker, M.; Schnockel, H.,
Raman spectrum and bonding of matrix isolated GeO[sub 2],
J. Chem. Phys., 2000, 112, 4, 1782, https://doi.org/10.1063/1.480740
. [all data]
Andrews and McCluskey, 1992
Andrews, L.; McCluskey, M.,
Bending modes of SiO2 and GeO2 in solid argon,
J. Mol. Spectrosc., 1992, 154, 1, 223, https://doi.org/10.1016/0022-2852(92)90042-M
. [all data]
Hassanzadeh and Andrews, 1992
Hassanzadeh, P.; Andrews, L.,
Infrared spectra of germanium sulfide, germanium disulfide, germanium oxide sulfide and germanium dioxide in solid argon,
J. Phys. Chem., 1992, 96, 15, 6181, https://doi.org/10.1021/j100194a018
. [all data]
Bos, Ogden, et al., 1974
Bos, A.; Ogden, J.S.; Orgee, L.,
Matrix isolation infrared study of the reaction between germanium vapor and molecular oxygen. Characterization and mechanism of formation of moleclar germanium dioxide and ozone,
J. Phys. Chem., 1974, 78, 17, 1763, https://doi.org/10.1021/j100610a019
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
EA Electron affinity S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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