Silica, vitreous
- Formula: O2Si
- Molecular weight: 60.0843
- IUPAC Standard InChI: InChI=1S/O2Si/c1-3-2
- IUPAC Standard InChIKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- CAS Registry Number: 60676-86-0
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Other names: Silicon dioxide
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Condensed phase 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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -910.7 ± 1.0 | kJ/mol | Review | Cox, Wagman, et al., 1984 | alpha-quartz phase; CODATA Review value |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 41.46 ± 0.20 | J/mol*K | Review | Cox, Wagman, et al., 1984 | alpha-quartz phase; CODATA Review value |
Gas phase ion energetics data
Go To: Top, Condensed phase 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 by: John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 2.09999 | LPES | Wang, Wu, et al., 1996 | EA is upper limit to adiabatic EA. Vertical Detachment Energy: 2.76±0.10 eV |
References
Go To: Top, Condensed phase 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.
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]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, 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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