O,O,O-Triethyl thiophosphate

Formula: C₆H₁₅O₃PS
Molecular weight: 198.220
IUPAC Standard InChI: InChI=1S/C6H15O3PS/c1-4-7-10(11,8-5-2)9-6-3/h4-6H2,1-3H3
IUPAC Standard InChIKey: QTPJMTACJMLPLL-UHFFFAOYSA-N
CAS Registry Number: 126-68-1
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Other names: Triethylphosphorothioate; (C2H5O)3PS; Phosphorothioic acid, O,O,O-triethyl ester; Ethyl phosphorothioate ((EtO)3PS); O,O,O-Triethyl phosphorothioate; O,O,O-Triethylester kyseliny thiofosforecne; O,O',O''-Triethyl phosphorothioate; Phosphine sulfide, triethoxy-; Thiophosphoric acid, tri-O-ethyl ester; Triethyl phosphorothionate; Triethyl thiophosphate; Triethylthiofosfat; O,O,O-Triethylthiofosfat; Ethyl thiophosphate, (C2H5O)3PS; NSC 2650
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Phase change data

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Data compiled by: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Δ_vapH (kcal/mol)	Temperature (K)	Method	Reference	Comment
20.9	320.	A	Stephenson and Malanowski, 1987	Based on data from 305. to 335. K. See also Dykyj, Svoboda, et al., 1999.

Gas phase ion energetics data

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Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV)	Method	Reference	Comment
8.49 ± 0.02	PE	Vilesov, Lopatin, et al., 1974
8.96	PE	Vovna, Lopatin, et al., 1974	Vertical value

References

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Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Vilesov, Lopatin, et al., 1974
Vilesov, F.I.; Lopatin, S.N.; Vovna, V.I.; Paetzold, R.; Niendorf, K., Untersuchungen an molekulkomplexen. 3. Mitteilung: Zusammenhang zwischen der ionisierungsenergie von R₁R₂R₃PS-molekulen und der stabilitat ihrer molekulkomplexe mit jod, Z. Phys. Chem. (Leipzig), 1974, 255, 661. [all data]

Vovna, Lopatin, et al., 1974
Vovna, V.I.; Lopatin, S.N.; Pettsold, R.; Vilesov, F.I.; Akopyan, M.E., Photoelectron spectra of a number of substitution products of thiophosphoryl chloride, Opt. Spectrosc., 1974, 36, 99. [all data]

Notes

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Symbols used in this document:

Δ_vapH Enthalpy of vaporization
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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