Diazene, bis(4-ethoxyphenyl)-, 1-oxide

• Formula: C₁₆H₁₈N₂O₃
• Molecular weight: 286.3257
• IUPAC Standard InChI: InChI=1S/C16H18N2O3/c1-3-20-15-9-5-13(6-10-15)17-18(19)14-7-11-16(12-8-14)21-4-2/h5-12H,3-4H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: QUICZVHSJNKDBL-UHFFFAOYSA-N Copy
• CAS Registry Number: 4792-83-0
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Azoxybenzene, 4,4'-diethoxy-; p,p'-Azoxyphenetole; 4,4'-Azoxydiphenetole; 4,4'-Azoxyphenetole; 4,4'-Bis(ethoxy)azoxybenzene; 4,4'-Diethoxyazoxybenzene; p-Azoxyphenetole; p,p'-Azoxydiphenetole; p,p'-Diethoxyazoxybenzene; Azoxyphenetole; NSC 142006; p,p'-Diethyloxyazoxybenzene; PAP; Phenetole, 4,4'-azoxydi-
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
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Gas 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

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 as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Constant pressure heat capacity of liquid

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of fusion

Enthalpy of phase transition

IR 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

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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]

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]

Kreutzer, 1938
Kreutzer, C., Kalorimetrische Messungen beim Übergang von der anisotropen zur isotropen flüssigen Phase, Ann. Physik. [5]33, 1938, 192-209. [all data]

Acree, 1993
Acree, W., Enthalpies of combustion of p-azoxyanisole and p-azoxyphenetole: the dissociation enthalpy of the N-O bonds. Enthalpies of crystal-to-(liquid crystal) transitions, The Journal of Chemical Thermodynamics, 1993, 25, 5, 653-659, https://doi.org/10.1006/jcht.1993.1062 . [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  ΔHtrs	Enthalpy of phase transition
  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
  ΔfusH	Enthalpy of fusion
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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