Selenium hexafluoride
- Formula: F6Se
- Molecular weight: 192.95
- IUPAC Standard InChI: InChI=1S/F6Se/c1-7(2,3,4,5)6
- IUPAC Standard InChIKey: LMDVZDMBPZVAIV-UHFFFAOYSA-N
- CAS Registry Number: 7783-79-1
- 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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
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 |
|---|---|---|---|---|---|
| 154.5 to 227.4 | 6.52740 | 1556.66 | 10.902 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 5.966 ± 0.01 | 205. | C | Ohta, Yamamuro, et al., 1996 | AC |
| 5.62 | 210. | N/A | Klemm and Henkel, 1932 | Based on data from 194. to 226. K.; AC |
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: Takehiko Shimanouchi
Symmetry: Oh Symmetry Number σ = 24
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1g | 1 | Sym str | 707 | B | ia | 706.9 VS | gas | |||
| eg | 2 | Deg str | 659 | B | ia | 658.7 W | gas | |||
| f1u | 3 | Deg str | 780 | C | 780 | gas | ia | |||
| f1u | 4 | Deg deform | 437 | C | 437 | gas | ia | |||
| f2g | 5 | Deg deform | 405 | C | ia | 405 W | gas | |||
| f2u | 6 | Deg deform | 264 | E | ia | ia | OC(2ν6) | |||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| W | Weak |
| ia | Inactive |
| OC | Frequency estimated from an overtone or a combination tone indicated in the parentheses. |
| B | 1~3 cm-1 uncertainty |
| C | 3~6 cm-1 uncertainty |
| E | 15~30 cm-1 uncertainty |
References
Go To: Top, Phase change 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.
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]
Ohta, Yamamuro, et al., 1996
Ohta, Tomoko; Yamamuro, Osamu; Matsuo, Takasuke; Suga, Hiroshi,
Calorimetric Study of Phase Transitions in SeF 6 and WF 6 Crystals «8224»,
J. Phys. Chem., 1996, 100, 6, 2353-2359, https://doi.org/10.1021/jp9519979
. [all data]
Klemm and Henkel, 1932
Klemm, Wilhelm; Henkel, Paul,
«65533»ber einige physikalische Eigenschaften von SF6, SeF6, TeF6 und CF4,
Z. Anorg. Allg. Chem., 1932, 207, 1, 73-86, https://doi.org/10.1002/zaac.19322070107
. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]
Notes
Go To: Top, Phase change data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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