cis-Azobenzene
- Formula: C12H10N2
- Molecular weight: 182.2212
- CAS Registry Number: 1080-16-6
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Condensed phase thermochemistry data
Go To: Top, UV/Visible spectrum, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | 85.49 ± 0.50 | kcal/mol | Cpha | Dias, Minas Da Piedade, et al., 1992 | Photoisomerization; ALS |
| ΔfH°solid | 87.76 ± 0.38 | kcal/mol | Ccb | Schulze, Petrick, et al., 1977 | ALS |
| ΔfH°solid | 86.59 | kcal/mol | Ccb | Cole and Gilbert, 1951 | ALS |
| ΔfH°solid | 85.9 ± 0.6 | kcal/mol | Ccb | Corruccini and Gilbert, 1939 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1557.7 ± 0.38 | kcal/mol | Ccb | Schulze, Petrick, et al., 1977 | ALS |
| ΔcH°solid | -1556.8 | kcal/mol | Ccb | Cole and Gilbert, 1951 | ALS |
| ΔcH°solid | -1555.5 ± 0.6 | kcal/mol | Ccb | Corruccini and Gilbert, 1939 | ALS |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 54.811 | 300. | Bouwstra, De Leeuw, et al., 1985 | T = 300 to 400 K.; DH |
| 54.80 | 300. | Van Miltenburg and Bouwstra, 1984 | T = 90 to 320 K.; DH |
| 52.3 | 298.15 | Schulze, Petrick, et al., 1977 | T = 298 to 333 K. Cp(c) = 219 + 1.029(T - 298.15 K) J/mol*K (298 to 333 K).; DH |
UV/Visible spectrum
Go To: Top, Condensed 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.
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, Condensed phase 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]
Schulze, Petrick, et al., 1977
Schulze, F.W.; Petrick, H.J.; Cammenga, H.K.,
Thermodynamic properties of structural analogues benzo[c]cinnoline, trans-azobenzene, and cis-azobenzene,
Z. Phys. Chem. (Neue Folge), 1977, 107, 1-19. [all data]
Cole and Gilbert, 1951
Cole, L.G.; Gilbert, E.C.,
The heats of combustion of some nitrogen compounds and the apparent energy of the N-N bond,
J. Am. Chem. Soc., 1951, 73, 5423-5427. [all data]
Corruccini and Gilbert, 1939
Corruccini, R.J.; Gilbert, E.C.,
The heat of combustion of cis- and trans-azobenzene,
J. Am. Chem. Soc., 1939, 61, 2925-2927. [all data]
Bouwstra, De Leeuw, et al., 1985
Bouwstra, J.A.; De Leeuw, V.V.; Van Miltenburg, J.C.,
Properties of mixed-crystalline organic material prepared by zone levelling. IV. Melting properties and excess enthalpies of (trans-azobenzene + trans-stilbene),
J. Chem. Thermodynam., 1985, 17, 685-695. [all data]
Van Miltenburg and Bouwstra, 1984
Van Miltenburg, J.C.; Bouwstra, J.A.,
Thermodynamic properties of trans-azobenzene and trans-stilbene,
J. Chem. Thermodynam., 1984, 16, 61-65. [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, Condensed phase thermochemistry data, UV/Visible spectrum, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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