1,1'-Oxybis-(1,1,2,2,3,3,4,4,5,5,5-undecafluoropentane)

Formula: C₁₀F₂₂O
Molecular weight: 554.0713
CAS Registry Number: 464-36-8
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Gas phase thermochemistry data

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Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	-1148.76 ± 0.64	kcal/mol	Ccr	Kolesov, Slavutskaya, et al., 1976	Reanalyzed by Kolesov and Kozina, 1986, Original value = -1131.9 ± 3.6 kcal/mol; hf_HF.20H20=-76.165 kcal/mol

Condensed phase thermochemistry data

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Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_liquid	-1143.2 ± 3.6	kcal/mol	Ccr	Kolesov, Slavutskaya, et al., 1976	hf_HF.20H20=-76.165 kcal/mol
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_liquid	-721.5 ± 3.6	kcal/mol	Ccr	Kolesov, Slavutskaya, et al., 1976	hf_HF.20H20=-76.165 kcal/mol

Phase change data

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Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity	Value	Units	Method	Reference	Comment
Δ_vapH°	11.3 ± 0.2	kcal/mol	V	Kolesov, Slavutskaya, et al., 1976	hf_HF.20H20=-76.165 kcal/mol; ALS
Δ_vapH°	11.3 ± 0.2	kcal/mol	EB	Kolesov, Slavutskaya, et al., 1976	AC

Enthalpy of vaporization

Δ_vapH (kcal/mol)	Temperature (K)	Method	Reference	Comment
12.3	300.	A	Stephenson and Malanowski, 1987	Based on data from 288. - 313. K. See also Dykyj, Svoboda, et al., 1999.; AC

References

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Kolesov, Slavutskaya, et al., 1976
Kolesov, V.P.; Slavutskaya, G.M.; Dityat'eva, L.N., Thermodynamic properties of oxygen containing organofluorine compounds. Enthalpies of formation of dimethylperfluoro-glutarate and perfluoro-di-n-amyl ether, J. Chem. Thermodyn., 1976, 8, 907-914. [all data]

Kolesov and Kozina, 1986
Kolesov, V.P.; Kozina, M.P., Thermochemistry of organic and organohalogen compounds, Russ. Chem. Rev., 1986, 55, 912. [all data]

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]

Notes

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Symbols used in this document:

Δ_cH°_liquid	Enthalpy of combustion of liquid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fH°_liquid	Enthalpy of formation of liquid at standard conditions
Δ_vapH	Enthalpy of vaporization
Δ_vapH°	Enthalpy of vaporization at standard conditions

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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