Azoxybenzene
- Formula: C12H10N2O
- Molecular weight: 198.2206
- IUPAC Standard InChIKey: GAUZCKBSTZFWCT-UHFFFAOYSA-N
- CAS Registry Number: 495-48-7
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Diazene, diphenyl-, 1-oxide; Azobenzene, oxide; Azoxybenzide; Diphenyldiazene N-oxide; Azossibenzene; Azoxybenzeen; Azoxybenzol; Benzene, azoxydi-; Fenazox; Fentoxan; Diazene, 1,2-diphenyl-, 1-oxide; NSC 1796
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, 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°gas | 81.74 ± 0.57 | kcal/mol | Ccb | Kirchner, Acree, et al., 1986 |
Condensed phase 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 58.17 ± 0.53 | kcal/mol | Ccb | Kirchner, Acree, et al., 1986 | |
ΔfH°solid | 71.5 | kcal/mol | Ccb | Lemoul, 1908 | |
ΔfH°solid | 71.5 | kcal/mol | Ccb | Lemoult, 1906 | Author value for hf298-condensed=65.1 kcal/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1528.4 ± 0.36 | kcal/mol | Ccb | Kirchner, Acree, et al., 1986 | |
ΔcH°solid | -1541.7 | kcal/mol | Ccb | Lemoul, 1908 | |
ΔcH°solid | -1541.7 | kcal/mol | Ccb | Lemoult, 1906 | Author value for hf298-condensed=65.1 kcal/mol |
Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 307.75 | K | N/A | Bruner, 1894 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 23.6 ± 0.2 | kcal/mol | C | Kirchner, Acree, et al., 1986 | ALS |
Gas phase ion energetics 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 as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.1 | PE | Millefiori, Ciliberto, et al., 1981 | LLK |
8.35 | PE | Petrachenko, Vovna, et al., 1993 | Vertical value; LL |
8.35 | PE | Furin, Petrachenko, et al., 1989 | Vertical value; LL |
8.40 | PE | Millefiori, Ciliberto, et al., 1981 | Vertical value; LLK |
8.55 | PE | Armen, Braunstein, et al., 1979 | Vertical value; LLK |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kirchner, Acree, et al., 1986
Kirchner, J.J.; Acree, W.E., Jr.; Pilcher, G.; Shaofeng, L.,
Enthalpies of combustion of four N-phenylmethylene benzenamine N-oxide derivatives, of N-phenylmethylene benzenamine, and of trans-diphenyldiazene N-oxide: the dissociation enthalpy of the (N-O)bonds,
J. Chem. Thermodyn., 1986, 18, 793-799. [all data]
Lemoul, 1908
Lemoul, M.P.,
Recherches theoriques et experimentals sur les chaleurs de combustion et de formation des couposes organiques,
Anal. Chem., 1908, 184-190. [all data]
Lemoult, 1906
Lemoult, M.P.,
Thermochimie. - Chaleur de combustion et de formation de quelques composes cycliques azotes,
Compt. Rend., 1906, 143, 772-775. [all data]
Bruner, 1894
Bruner, L.,
The heats of fusion of some organic compounds,
Ber. Dtsch. Chem. Ges., 1894, 27, 2102. [all data]
Millefiori, Ciliberto, et al., 1981
Millefiori, S.; Ciliberto, E.; Millefiori, A.; Zerbo, M.A.,
Gas phase U. V. photoelectron investigation of azoxybenzene and 4,4'-di(n-alkoxy)azoxybenzenes,
Spectromchim. Acta Part A, 1981, 37, 605. [all data]
Petrachenko, Vovna, et al., 1993
Petrachenko, N.E.; Vovna, V.I.; Furin, G.G.,
Photoelectron HeI spectra of fluorinated azo- and azoxy-benzenes,
J. Fluorine Chem., 1993, 63, 85. [all data]
Furin, Petrachenko, et al., 1989
Furin, G.G.; Petrachenko, N.E.; Vovna, V.I.,
Photoelectron spectra of fluorine-containing azoxybenzenes,
J. Org. Chem. USSR, 1989, 26, 1725, In original 1998. [all data]
Armen, Braunstein, et al., 1979
Armen, G.H.; Braunstein, C.; Weinstein, M.I.; Baker, A.D.,
Reaction of azoxyanisole with oxalyl chloride: Use of photoelectron spectroscopy in seeking new reactions,
Tetrahedron Lett., 1979, 43, 4197. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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