cis-Azobenzene

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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

C12H10N2 = Azobenzene, (E)-

By formula: C12H10N2 = C12H10N2

Quantity Value Units Method Reference Comment
Δr-10.8 ± 0.57kcal/molCphaDias, Minas Da Piedade, et al., 1992solid phase; Photoisomerization
Δr-11.5 ± 0.07kcal/molCisoWolf and Cammenga, 1977solid phase
Δr-11.3kcal/molCisoWolf and Cammenga, 1977gas phase; Gas phase

C12H10N2 = Azobenzene

By formula: C12H10N2 = C12H10N2

Quantity Value Units Method Reference Comment
Δr-11.5 ± 0.36kcal/molCmCammenga, Behrens, et al., 1977solid 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.

Data compiled by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis 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

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