Cyclopentanamine
- Formula: C5H11N
- Molecular weight: 85.1475
- IUPAC Standard InChIKey: NISGSNTVMOOSJQ-UHFFFAOYSA-N
- CAS Registry Number: 1003-03-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Cyclopentylamine; Amino cyclopentane
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Phase change data
Go To: Top, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 381.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 381.62 | K | N/A | Timmermans and Hennaut-Roland, 1955 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tboil | 381. | K | N/A | Bollinger, Hayes, et al., 1953 | Uncertainty assigned by TRC = 6. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 187.45 | K | N/A | Timmermans and Hennaut-Roland, 1955 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 187.45 | K | N/A | Timmermans, 1952 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 190.45 | K | N/A | Finke, Messerly, et al., 1981 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.61 ± 0.10 | kcal/mol | V | Good, Messerly, et al., 1975 | ALS |
ΔvapH° | 9.63 | kcal/mol | N/A | Good, Messerly, et al., 1975 | DRB |
ΔvapH° | 9.61 ± 0.1 | kcal/mol | EB | Good, Messerly, et al., 1975 | Based on data from 317. to 419. K.; AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.15 | 332. | EB | Stephenson and Malanowski, 1987 | Based on data from 317. to 419. K. See also Ambrose, Connett, et al., 1975.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.99 | 190.4 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.617 | 184.5 | Domalski and Hearing, 1996 | CAL |
10.43 | 190.4 |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.1136 | 184.5 | crystaline, II | crystaline, I | Finke, Messerly, et al., 1981, 2 | Lambda type transition.; DH |
1.9868 | 190.45 | crystaline, I | liquid | Finke, Messerly, et al., 1981, 2 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.617 | 184.5 | crystaline, II | crystaline, I | Finke, Messerly, et al., 1981, 2 | Lambda; DH |
10.43 | 190.45 | crystaline, I | liquid | Finke, Messerly, et al., 1981, 2 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Timmermans and Hennaut-Roland, 1955
Timmermans, J.; Hennaut-Roland, M.,
Work of the International Bureau of Physical-Chemical Standards. IX. The Physical Constants of Twenty Organic Compounds,
J. Chim. Phys. Phys.-Chim. Biol., 1955, 52, 223. [all data]
Bollinger, Hayes, et al., 1953
Bollinger, F.W.; Hayes, F.N.; Siegel, S.,
The Base-Catalyzed Decomposition of N-Nitroso-N-cyclopentylurethan,
J. Am. Chem. Soc., 1953, 75, 1729-30. [all data]
Timmermans, 1952
Timmermans, J.,
Freezing points of organic compounds. VVI New determinations.,
Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]
Finke, Messerly, et al., 1981
Finke, H.L.; Messerly, J.F.; Lee-Bechtold, S.H.,
Thermodynamic properties of cyclopropylamine,cyclopentylamine,and methylenecyclobutane,
J. Chem. Thermodyn., 1981, 13, 345. [all data]
Good, Messerly, et al., 1975
Good, W.D.; Messerly, J.F.; Osborn, A.G.; Douslin, D.R.,
Enthalpies of formation of cyclopentylamine and cyclobutylamine; vapor pressure of cyclopentylamine,
J. Chem. Thermodyn., 1975, 7, 285-291. [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]
Ambrose, Connett, et al., 1975
Ambrose, D.; Connett, J.E.; Green, J.H.S.; Hales, J.L.; Head, A.J.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. 42. Physical and thermodynamic properties of benzaldehyde,
J. Chem. Thermodyn., 1975, 7, 1143-1157. [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]
Finke, Messerly, et al., 1981, 2
Finke, H.L.; Messerly, J.F.; Lee-Bechtold, S.H.,
Thermodynamic properties of cyclopropylamine, cyclopentylamine, and methylenecyclobutane,
J. Chem. Thermodyn., 1981, 13, 345-355. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy 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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