Pyridine, 2-ethyl-
- Formula: C7H9N
- Molecular weight: 107.1531
- IUPAC Standard InChIKey: NRGGMCIBEHEAIL-UHFFFAOYSA-N
- CAS Registry Number: 100-71-0
- 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: α-Ethylpyridine; 2-Ethylpyridine
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Condensed phase thermochemistry data
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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°liquid | 1.5 | kJ/mol | Ccb | Balandin, Klabunovsky, et al., 1960 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4042.3 | kJ/mol | Ccb | Balandin, Klabunovsky, et al., 1960 |
Phase change data
Go To: Top, Condensed 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 421.8 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 423.15 | K | N/A | Kyte, Jeffery, et al., 1960 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tboil | 422.05 | K | N/A | Petro and Smyth, 1957 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tboil | 422. | K | N/A | Cook and Church, 1956 | Uncertainty assigned by TRC = 3. K; value taken from Reilly Tar & Chemical Co.; TRC |
Tboil | 417. | K | N/A | Gregg and Craig, 1948 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 210.05 | K | N/A | Brown and Murphey, 1951 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 44.7 ± 0.8 | kJ/mol | C | Morais, Miranda, et al., 2003 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
43.7 | 338. | A | Stephenson and Malanowski, 1987 | Based on data from 323. to 373. K. See also Kkykj and Repas, 1973.; AC |
References
Go To: Top, Condensed 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.
Balandin, Klabunovsky, et al., 1960
Balandin, A.A.; Klabunovsky, E.I.; Oberemok-Yakubova, A.P.; Brusov, I.I.,
Thermochemical determination of the heat of combustion of 2-ethyl- and 2-vinylpyrydines,
Izv. Akad. Nauk SSSR, Ser. Khim., 1960, 784-786. [all data]
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]
Kyte, Jeffery, et al., 1960
Kyte, C.T.; Jeffery, G.H.; Vogel, A.I.,
Physical Properties and Chem. Constitution XXVII. Pyridine Derivatives,
J. Chem. Soc., 1960, 1960, 4454. [all data]
Petro and Smyth, 1957
Petro, A.J.; Smyth, C.P.,
Microwave absorption and molecular structure in liquids. XX. dielectric relaxation times and molecular shapes of some substituted benzenes and pyridines,
J. Am. Chem. Soc., 1957, 79, 6142. [all data]
Cook and Church, 1956
Cook, G.L.; Church, F.M.,
Anal. Chem., 1956, 28, 993-5. [all data]
Gregg and Craig, 1948
Gregg, E.C.; Craig, D.,
2-Ethylpyridine and Derivatifes,
J. Am. Chem. Soc., 1948, 70, 3138. [all data]
Brown and Murphey, 1951
Brown, H.C.; Murphey, W.A.,
A convenient synthesis of the monoalkylpyridines; a new prototropic reaction of 3-picoline,
J. Am. Chem. Soc., 1951, 73, 3308. [all data]
Morais, Miranda, et al., 2003
Morais, Victor M.F.; Miranda, Margarida S.; Matos, M. Agostinha R.,
Thermochemical study of the ethylpyridine and ethylpyrazine isomers,
Org. Biomol. Chem., 2003, 1, 23, 4329-712, https://doi.org/10.1039/b308097h
. [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]
Kkykj and Repas, 1973
Kkykj, J.; Repas, M.,
Petrochemia, 1973, 13, 179. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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