Undecafluoropiperidine
- Formula: C5F11N
- Molecular weight: 283.0426
- IUPAC Standard InChIKey: VCEAGMYKGZNUFL-UHFFFAOYSA-N
- CAS Registry Number: 836-77-1
- Chemical structure:
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Gas phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -478.9 ± 1.2 | kcal/mol | Ccb | Good, Todd, et al., 1963 | Reanalyzed by Cox and Pilcher, 1970, Original value = -475.78 kcal/mol; Heat of combustion corrected for CF4 formation |
ΔfH°gas | -476.8 | kcal/mol | Ccr | Good and Scott, 1959 | Private communication |
Phase change data
Go To: Top, Gas phase thermochemistry 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 274.12 | K | N/A | Good, Todd, et al., 1963, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 7.16 ± 0.05 | kcal/mol | E | Good, Todd, et al., 1963 | Heat of combustion corrected for CF4 formation; ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.2 | 317. | A | Stephenson and Malanowski, 1987 | Based on data from 302. to 355. K. See also Good, Todd, et al., 1963 and Dykyj, 1972.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.674 | 274.1 | Domalski and Hearing, 1996 | AC |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.5840 | 161.0 | crystaline, III | crystaline, II | Good, Todd, et al., 1963 | DH |
0.43951 | 171.9 | crystaline, II | crystaline, I | Good, Todd, et al., 1963 | DH |
0.6730 | 274.12 | crystaline, I | liquid | Good, Todd, et al., 1963 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
9.837 | 161.0 | crystaline, III | crystaline, II | Good, Todd, et al., 1963 | DH |
2.557 | 171.9 | crystaline, II | crystaline, I | Good, Todd, et al., 1963 | DH |
2.455 | 274.12 | crystaline, I | liquid | Good, Todd, et al., 1963 | DH |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Good, Todd, et al., 1963
Good, W.D.; Todd, S.S.; Messerly, J.F.; Lacina, J.L.; Dawson, J.P.; Scott, D.W.; McCullough, J.P.,
Perfluoropiperidine: Entropy, heat of formation, and vapor pressure; N-F bond energy; and solid-state transitions,
J. Phys. Chem., 1963, 67, 1306-1311. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Good and Scott, 1959
Good, W.D.; Scott, D.W.,
Thermochemistry of organic fluorine compounds and carbon compounds of metals by rotating-bomb calorimetry,
Symposium uber Thermodynamik, Freitag, 1959, 1-7. [all data]
Good, Todd, et al., 1963, 2
Good, W.D.; Todd, S.S.; Messerly, J.F.; Lacina, J.L.; Dawson, J.P.; Scott, D.W.; McCullough, J.P.,
Perflouropiperidine: Entropy, heat of formation, and vapor pressure; N-F bond energy; and solid-state transitions.,
J. Phys. Chem., 1963, 67, 1306-11. [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, 1972
Dykyj, J.,
Petrochemia, 1972, 12, 1, 13. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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