Sulfur, pentafluoro(trifluoromethyl)-, (OC-6-21)-
- Formula: CF8S
- Molecular weight: 196.063
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: QIYZKVMAFMDRTP-UHFFFAOYSA-N
- CAS Registry Number: 373-80-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: Sulfur, pentafluoro(trifluoromethyl)-; Pentafluoro(trifluoromethyl)sulfur; CF3SF5; Trifluoromethylsulfur pentafluoride
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Gas phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
|fH°gas||-410.385||kcal/mol||Review||Chase, 1998||Data last reviewed in December, 1977|
|S°gas,1 bar||90.808||cal/mol*K||Review||Chase, 1998||Data last reviewed in December, 1977|
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
Cp = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
|Temperature (K)||298. - 1100.||1100. - 6000.|
|Reference||Chase, 1998||Chase, 1998|
|Comment||Data last reviewed in December, 1977||Data last reviewed in December, 1977|
Phase change data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
|vapH (kcal/mol)||Temperature (K)||Method||Reference||Comment|
|4.83||253.||I||Kul, DesMarteau, et al., 2001||Based on data from 223. - 252. K.|
|5.69||247.||A||Stephenson and Malanowski, 1987||Based on data from 205. - 262. K. See also Dykyj, Svoboda, et al., 1999.|
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Michael M. Meot-Ner (Mautner)
Gas basicity at 298K
|Gas basicity (review) (kcal/mol)||Reference||Comment|
|153. ± 3.||Pepi, Ricci, et al., 2005||T = 298K; PA(SF5CH3) bracketed between COS and CH3Cl based on dissociative PT reactions with large entropy changes, that may affect the kinetics. However, the derived PA agrees with ab initio values.|
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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|Owner||NIST Mass Spectrometry Data Center|
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
|NIST MS number||8740|
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Kul, DesMarteau, et al., 2001
Kul, Ismail; DesMarteau, Darryl D.; Beyerlein, Adolph L., Vapor--liquid equilibria for CF3OCF2H/fluorinated ethane and CF3SF5/fluorinated ethane mixtures as potential R22 alternatives, Fluid Phase Equilibria, 2001, 185, 1-2, 241-253, https://doi.org/10.1016/S0378-3812(01)00474-5 . [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]
Pepi, Ricci, et al., 2005
Pepi, F.; Ricci, A.; Di Stefano, M.; Rosi, M., Gas phase protonation of trifluoromethyl sulfur pentafluoride, Phys. Chem. Chem. Phys., 2005, 7, 1181. [all data]
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) fH°gas Enthalpy of formation of gas at standard conditions vapH Enthalpy of vaporization
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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