Diazene, bis(4-methoxyphenyl)-, 1-oxide
- Formula: C14H14N2O3
- Molecular weight: 258.2726
- IUPAC Standard InChI: InChI=1S/C14H14N2O3/c1-18-13-7-3-11(4-8-13)15-16(17)12-5-9-14(19-2)10-6-12/h3-10H,1-2H3
- IUPAC Standard InChIKey: KAEZRSFWWCTVNP-UHFFFAOYSA-N
- CAS Registry Number: 1562-94-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Azoxybenzene, 4,4'-dimethoxy-; p-Azoxyanisole; p-Azoxydianisole; p,p'-Azoxyanisole; p,p'-Azoxydianisole; 4,4'-Azoxyanisole; 4,4'-Azoxydianisole; 4,4'-Dimethoxyazoxybenzene; Azoxy-bis(4-methoxybenzene); p,p'-Dimethoxyazoxybenzene; PAA; Diazene, 1,2-bis(4-methoxyphenyl)-, 1-oxide; NSC 7959
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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 as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -101.4 ± 2.6 | kJ/mol | Ccb | Acree, Tucker, et al., 1993 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -7408.6 ± 1.9 | kJ/mol | Ccb | Acree, Tucker, et al., 1993 | ALS |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 569. | 400. | Kreutzer, 1938 | Value a few degrees below anisotropic-isotropic liquid-liquid transition at 409 K.; DH |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 380.3 | 368. | Barral, Porter, et al., 1967 | T = 368 to 423 K.; DH |
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.
Acree, Tucker, et al., 1993
Acree, W.E., Jr.; Tucker, S.A.; Pilcher, G.; Paz Andrade, M.I.; Ribeiro da Silva, M.D.M.C.,
Enthalpies of combustion of p-azoxyanisole p-azoxyphenetole: the dissociation enthalpy of the N-O bonds. Enthalpies of crystal-to-(liquid crystal) transitions,
J. Chem. Thermodyn., 1993, 25, 653-659. [all data]
Kreutzer, 1938
Kreutzer, C.,
Kalorimetrische Messungen beim Übergang von der anisotropen zur isotropen flüssigen Phase,
Ann. Physik. [5]33, 1938, 192-209. [all data]
Barral, Porter, et al., 1967
Barral, E.M., II; Porter, R.S.; Johnson, J.F.,
Specific heats of nematic, smectic, and cholesteric liquid crystals by differential scanning calorimetry,
J. Phys. Chem., 1967, 71, 895-900. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid 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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