1,2-Benzenedicarbonitrile
- Formula: C8H4N2
- Molecular weight: 128.1308
- IUPAC Standard InChI: InChI=1S/C8H4N2/c9-5-7-3-1-2-4-8(7)6-10/h1-4H
- IUPAC Standard InChIKey: XQZYPMVTSDWCCE-UHFFFAOYSA-N
- CAS Registry Number: 91-15-6
- 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: Phthalonitrile; o-Benzenedicarbonitrile; o-Cyanobenzonitrile; o-Dicyanobenzene; Phthalodinitrile; 1,2-Dicyanobenzene; o-Phthalodinitrile; o-PDN; Phthalic acid dinitrile; USAF ND-09; 1,2-Benzodinitrile; 1,2-Benzendikarbonitril; Ftalodinitril; Ftalonitril; o-Benzenedinitrile; NSC 17562
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Gas 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 368.3 | kJ/mol | N/A | Rabinovich, Karyakin, et al., 1984 | Value computed using ΔfHsolid° value of 281.4±1.9 kj/mol from Rabinovich, Karyakin, et al., 1984 and ΔsubH° value of 86.9 kj/mol from Rabinovich, Karyakin, et al., 1984.; DRB |
| ΔfH°gas | 367.5 ± 1.9 | kJ/mol | Ccb | Sato-Toshima, Sakiyama, et al., 1980 | ALS |
| ΔfH°gas | 362.0 | kJ/mol | N/A | Salley and Gray, 1951 | Value computed using ΔfHsolid° value of 275.1 kj/mol from Salley and Gray, 1951 and ΔsubH° value of 86.9 kj/mol from Salley and Gray, 1951.; DRB |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rabinovich, Karyakin, et al., 1984
Rabinovich, I.B.; Karyakin, N.V.; Dzharimova, E.S.; Siling, S.A.; Ponomarev, I.I.; Vinogradova, S.V.,
Thermodynamics of condensation of phthalonitrile with m-phenylenediamine,
Bull. Acad. Sci. USSR, Div. Chem. Sci., 1984, 716-723. [all data]
Sato-Toshima, Sakiyama, et al., 1980
Sato-Toshima, T.; Sakiyama, M.; Seki, S.,
Thermochemical estimation of destabilization energies of 1,2-, 1,3-, and 1,4-dicyanobenzenes due to interactions between substituents. Appendix: Dipole moments in solution of the dicyanobenzenes,
Bull. Chem. Soc. Jpn., 1980, 53, 2762-2767. [all data]
Salley and Gray, 1951
Salley, D.J.; Gray, J.B.,
Heats of combustion of some organic nitrogen compounds,
J. Am. Chem. Soc., 1951, 73, 5925. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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