Diazene, bis(1,1-dimethylethyl)-

• Formula: C₈H₁₈N₂
• Molecular weight: 142.2419
• IUPAC Standard InChI: InChI=1S/C8H18N2/c1-7(2,3)9-10-8(4,5)6/h1-6H3 Copy

  
• IUPAC Standard InChIKey: GKCPCPKXFGQXGS-UHFFFAOYSA-N Copy
• CAS Registry Number: 927-83-3
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Azoethane, 1,1,1',1'-tetramethyl-; Bis(tert-butyl)diimine; Di-tert-butyldiazene; 2,2'-Azoisobutane; (tert-C4H9N)2; Azobis(t-butane); 1,2-Bis(1,1-dimethylethyl)diazene; 2,2'-Azo-2,2'-dimethylpropane; 2,2'-Azobis(2-methylpropane); VR-160; 2,2'-Azobis-tert-butane; Diazene, bis(1,1-dimethylethyl)-, trans-
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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

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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of fusion

Enthalpy of phase transition

Entropy of phase transition

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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

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

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Montgomery, Engel, et al., 1978
Montgomery, R.L.; Engel, P.S.; Leckonby, R.A.; Rossini, F.D.; Mansson, M.; Szilagyi, S.; Timberlake, J.W., Enthalpies of combustion, vaporization, and formation of 3,3,4,4-tetramethyl-Δ¹-1,2-diazetine and di-tert-butyldiazene, J. Chem. Eng. Data, 1978, 131, 129-131. [all data]

Engel, Melaugh, et al., 1976
Engel, P.S.; Melaugh, R.A.; Mansson, M.; Timberlake, J.W.; Garner, A.W.; Rossini, F.D., Thermochemistry of nine diazenes (azo compounds), J. Chem. Thermodyn., 1976, 8, 607-621. [all data]

Engel, Wood, et al., 1974
Engel, P.S.; Wood, J.L.; Sweet, J.A.; Margrave, J.L., Thermochemistry of azoalkanes, J. Am. Chem. Soc., 1974, 96, 2381-2387. [all data]

Engel, 1976
Engel, P.S., Thermochemistry of cyclic 1,2-dialkyldiazenes (azo compounds). The effect of strain energy on thermal lability, J. Am. Chem. Soc., 1976, 98, 1972-19. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Byström, 1980
Byström, Katarina, Solid--solid phase transitions in azoxy compounds, J. Chem. Soc., Faraday Trans. 1, 1980, 76, 0, 1986, https://doi.org/10.1039/f19807601986 . [all data]

Bystroem, 1980
Bystroem, K., Solid-solid phase transitions in azoxy compounds, J. Chem. Soc., Faraday Trans., 1980, 1 76(9), 1986-1990. [all data]

Bock, Wittel, et al., 1976
Bock, H.; Wittel, K.; Veith, M.; Wiberg, N., Photoelectron spectra and molecular properties. L.^1-3 On the blue color of bis(trimethylsilyl)diimine, J. Am. Chem. Soc., 1976, 98, 109. [all data]

Houk, Chang, et al., 1975
Houk, K.N.; Chang, Y.-M.; Engel, P.S., Photoelectron spectroscopy of azo compounds, J. Am. Chem. Soc., 1975, 97, 1824. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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