Piperidine
- Formula: C5H11N
- Molecular weight: 85.1475
- IUPAC Standard InChIKey: NQRYJNQNLNOLGT-UHFFFAOYSA-N
- CAS Registry Number: 110-89-4
- 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: Azacyclohexane; Cyclopentimine; Cypentil; Hexahydropyridine; Hexazane; Pentamethylenimine; Pyridine, hexahydro-; Pentamethyleneimine; Piperidin; UN 2401; Perhydropyridine; Pentamethyleneamine
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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -86.44 ± 0.59 | kJ/mol | Ccb | Good, 1972 | Author was aware that data differs from previously reported values; ALS |
ΔfH°liquid | -88.1 ± 2.3 | kJ/mol | Ccb | Bedford, Beezer, et al., 1963 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -3453.2 ± 0.50 | kJ/mol | Ccb | Good, 1972 | Author was aware that data differs from previously reported values; ALS |
ΔcH°liquid | -3451.5 ± 2.3 | kJ/mol | Ccb | Bedford, Beezer, et al., 1963 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 209.972 | J/mol*K | N/A | Messerly, Todd, et al., 1988 | DH |
S°liquid | 209.94 | J/mol*K | N/A | Messerly, Todd, et al., 1987 | DH |
S°liquid | 209.94 | J/mol*K | N/A | Steele, Chirico, et al., 1986 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
179.857 | 298.150 | Messerly, Todd, et al., 1988 | T = 10 to 400 K.; DH |
179.85 | 298.15 | Messerly, Todd, et al., 1987 | T = 10 to 370 K.; DH |
179.86 | 298.15 | Steele, Chirico, et al., 1986 | T = 10 to 370 K.; DH |
181.6 | 298. | Conti, Gianni, et al., 1976 | DH |
182.76 | 297.39 | Moelwyn-Hughes and Thorpe, 1964 | T = 297 to 327 K.; DH |
186.2 | 290. | Kurnakov and Voskresenskaya, 1936 | DH |
170.7 | 290. | Radulescu and Jula, 1934 | DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Good, 1972
Good, W.D.,
Enthalpies of combustion of nine organic nitrogen compounds related to petroleum,
J. Chem. Eng. Data, 1972, 17, 28-31. [all data]
Bedford, Beezer, et al., 1963
Bedford, A.F.; Beezer, A.E.; Mortimer, C.T.,
Heats of formation and bond energies. Part X. 1,2,5,6-tetrahydropyridine, piperidine, and piperazine,
J. Chem. Soc., 1963, 2039-2043. [all data]
Messerly, Todd, et al., 1988
Messerly, J.F.; Todd, S.S.; Finke, H.L.; Good, W.D.; Gammon, B.E.,
Condensed-phase heat-capacity studies and derived thermodynamic properties for six cyclic nitrogen compounds,
J. Chem. Thermodynam., 1988, 20, 209-224. [all data]
Messerly, Todd, et al., 1987
Messerly, J.F.; Todd, S.S.; Finke, H.L.; Gammon, B.E.,
Thermodynamic properties of organic nitrogen compounds that occur in shale oil and heavy petroleum-topical report,
NIPER Report, 1987, 83, 37p. [all data]
Steele, Chirico, et al., 1986
Steele, W.V.; Chirico, R.D.; Collier, W.B.; Hossenlopp, I.A.; Nguyen, A.; Strube, M.M.,
Thermochemical and thermophysical properties of organic nitrogen compounds found in fossil materials,
NIPER Report, 1986, 188, 112p. [all data]
Conti, Gianni, et al., 1976
Conti, G.; Gianni, P.; Matteoli, E.; Mengheri, M.,
Capacita termiche molari di alcuni composti organici mono- e bifunzionali nel liquido puro e in soluzione acquosa a 25C,
Chim. Ind. (Milan), 1976, 58, 225. [all data]
Moelwyn-Hughes and Thorpe, 1964
Moelwyn-Hughes, E.A.; Thorpe, P.L.,
The physical and thermodynamic properties of some associated solutions. II. Heat capacities and compressibilities,
Proc. Roy. Soc. (London), 1964, 278A, 574-587. [all data]
Kurnakov and Voskresenskaya, 1936
Kurnakov, N.S.; Voskresenskaya, N.K.,
Calorimetry of liquid binary systems, Izv. Akad. Nauk SSSR,
Otdel. Mat. i Estestv. Nauk. Ser. Khim, 1936, 1936, 439-461. [all data]
Radulescu and Jula, 1934
Radulescu, D.; Jula, O.,
Beiträge zur Bestimmung der Abstufung der Polarität des Aminstickstoffes in den organischen Verbindungen,
Z. Phys. Chem., 1934, B26, 390-393. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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