4-Pyridinecarbonitrile
- Formula: C6H4N2
- Molecular weight: 104.1094
- IUPAC Standard InChI: InChI=1S/C6H4N2/c7-5-6-1-3-8-4-2-6/h1-4H
- IUPAC Standard InChIKey: GPHQHTOMRSGBNZ-UHFFFAOYSA-N
- CAS Registry Number: 100-48-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Isonicotinonitrile; γ-Cyanopyridine; Isonicotinic acid nitrile; 4-Cyanopyridine; 4-Pyridinenitrile
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Gas 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°gas | 67.76 ± 0.26 | kcal/mol | Ccb | Bickerton, Pilcher, et al., 1984 |
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:
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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 351. to 353. | K | N/A | Frinton Laboratories Inc., 1986 | BS |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 352.4 | K | N/A | Leis and Curran, 1945 | Uncertainty assigned by TRC = 1. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 17.5 ± 0.1 | kcal/mol | C | Bickerton, Pilcher, et al., 1984 | ALS |
| ΔsubH° | 17.5 | kcal/mol | N/A | Bickerton, Pilcher, et al., 1984 | DRB |
| ΔsubH° | 17.5 ± 0.1 | kcal/mol | C | Bickerton, Pilcher, et al., 1984 | AC |
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.
Bickerton, Pilcher, et al., 1984
Bickerton, J.; Pilcher, G.; Al-Takhin, G.,
Enthalpies of combustion of the three aminopyridines and the three cyanopyridines,
J. Chem. Thermodyn., 1984, 16, 373-378. [all data]
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]
Leis and Curran, 1945
Leis, D.G.; Curran, B.C.,
Electric moments of some gamma-substituted pyridines,
J. Am. Chem. Soc., 1945, 67, 79. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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