2-Butynedinitrile
- Formula: C4N2
- Molecular weight: 76.0562
- IUPAC Standard InChI: InChI=1S/C4N2/c5-3-1-2-4-6
- IUPAC Standard InChIKey: ZEHZNAXXOOYTJM-UHFFFAOYSA-N
- CAS Registry Number: 1071-98-3
- 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: Acetylenedicarbonitrile; Dicyanoacetylene; 1,2-Dicyanoacetylene; NCC≡CCN; Dicyanoethyne; Sous-azote de carbone; C4N2
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | 119.6 | kcal/mol | Ccb | Armstrong and Marantz, 1963 | Correction of Armstrong and Marantz, 1960 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -495.80 ± 0.30 | kcal/mol | Ccb | Armstrong and Marantz, 1963 | Reanalyzed by Cox and Pilcher, 1970, Original value = -495.5 ± 0.2 kcal/mol; Correction of Armstrong and Marantz, 1960 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -515.4 | kcal/mol | Ccb | Moureu and Bongrand, 1920 |
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.
Armstrong and Marantz, 1963
Armstrong, G.T.; Marantz, S.,
The heat of combustion of dicyanoacetylene [Correction Ref. 60ARM/MAR],
J. Phys. Chem., 1963, 67, 2888. [all data]
Armstrong and Marantz, 1960
Armstrong, G.T.; Marantz, S.,
The heat of combustion of dicyanoacetylene,
J. Phys. Chem., 1960, 64, 1776-1778. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Moureu and Bongrand, 1920
Moureu, M.C.; Bongrand, J.Ch.,
Thermochimie. - Nouvelles recherches sur le sous-azolure de carbone. Action des halogenes, des acides halohydriques et des alcools,
Compt. Rend., 1920, 170, 1025-1028. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔcH°solid Enthalpy of combustion of solid 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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