cis-Azobenzene
- Formula: C12H10N2
- Molecular weight: 182.2212
- CAS Registry Number: 1080-16-6
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Reaction 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
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Individual Reactions
By formula: C12H10N2 = C12H10N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -10.8 ± 0.57 | kcal/mol | Cpha | Dias, Minas Da Piedade, et al., 1992 | solid phase; Photoisomerization |
ΔrH° | -11.5 ± 0.07 | kcal/mol | Ciso | Wolf and Cammenga, 1977 | solid phase |
ΔrH° | -11.3 | kcal/mol | Ciso | Wolf and Cammenga, 1977 | gas phase; Gas phase |
By formula: C12H10N2 = C12H10N2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -11.5 ± 0.36 | kcal/mol | Cm | Cammenga, Behrens, et al., 1977 | solid phase |
UV/Visible spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Le Ferve and Northcott, 1952 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 9971 |
Instrument | Beckman DU |
Melting point | 71 |
References
Go To: Top, Reaction thermochemistry data, UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Dias, Minas Da Piedade, et al., 1992
Dias, A.R.; Minas Da Piedade, M.E.; Martinho Simoes, J.A.; Simoni, J.A.; Teixeira, C.; Diogo, H.P.; Meng-Yen, Y.; Pilcher, G.,
Enthalpies of formation of cis-azobenzene and trans-azobenzene,
J. Chem. Thermodyn., 1992, 24, 439-447. [all data]
Wolf and Cammenga, 1977
Wolf, E.; Cammenga, H.K.,
Thermodynamic and kinetic investigation of the thermal isomerization of cis-azobenzene,
Z. Phys. Chem. (Neue Folge), 1977, 107, 21-38. [all data]
Cammenga, Behrens, et al., 1977
Cammenga, H.K.; Behrens, E.; Wolf, F.,
Thermal isomerization of cis-azobenzene in the solid state
in React. Solids, [Proc. Int. Symp.],, ed. J. Wood, O. Lindqvist, C. Helgesson, Plenum: New York,NY, 1977, 481-486. [all data]
Le Ferve and Northcott, 1952
Le Ferve, R.J.W.; Northcott, J.,
J. Chem. Soc., 1952, 4082. [all data]
Notes
Go To: Top, Reaction thermochemistry data, UV/Visible spectrum, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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