Hexafluorodisilane
- Formula: F6Si2
- Molecular weight: 170.1614
- IUPAC Standard InChI: InChI=1S/F6Si2/c1-7(2,3)8(4,5)6
- IUPAC Standard InChIKey: SDNBGJALFMSQER-UHFFFAOYSA-N
- CAS Registry Number: 13830-68-7
- Chemical structure:
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Phase change 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.
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 192. to 254.3 | 9.14843 | 2378.47 | 5.576 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 13.20 ± 0.02 | PE | Cradock, Ebsworth, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| FSi+ | 14.2 ± 0.1 | ? | EI | McDonald, Williams, et al., 1968 | RDSH |
| F2Si+ | 13.0 ± 0.1 | ? | EI | McDonald, Williams, et al., 1968 | RDSH |
| F3Si+ | 14.3 ± 0.1 | ? | EI | McDonald, Williams, et al., 1968 | RDSH |
| F5Si2+ | 12.9 ± 0.1 | F | EI | McDonald, Williams, et al., 1968 | 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.
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Cradock, Ebsworth, et al., 1973
Cradock, S.; Ebsworth, E.A.V.; Whiteford, R.A.,
Photoelectron spectra of some simple fluorosilanes,
J. Chem. Soc. Dalton Trans., 1973, 22, 2401. [all data]
McDonald, Williams, et al., 1968
McDonald, J.D.; Williams, C.H.; Thompson, J.C.; Margrave, J.L.,
Appearance potentials, ionization potentials and heats of formation for perfluorosilanes and perfluoroborosilanes,
Advan. Chem. Ser., 1968, 72, 261. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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