Di-t-butyldiazene N-oxide

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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

Quantity Value Units Method Reference Comment
Δfgas-25.71 ± 0.50kcal/molCcrBystrom, 1981 

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
Δfliquid-36.69 ± 0.50kcal/molCcrBystrom, 1981 
Quantity Value Units Method Reference Comment
Δcliquid-1330.55 ± 0.43kcal/molCcrBystrom, 1981 

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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus288.4KN/AByström, 1980Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Δvap10.98 ± 0.02kcal/molCBystrom, 1981ALS
Δvap11.0 ± 0.02kcal/molCBystrom, 1981AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
2.753288.4Byström, 1980AC

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.993268.0crystaline, IIcrystaline, IBystroem, 1980DH
2.7533288.4crystaline, I Bystroem, 1980DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
7.43268.0crystaline, IIcrystaline, IBystroem, 1980DH
9.54288.4crystaline, I Bystroem, 1980DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Bystrom, 1981
Bystrom, K., Enthalpies of combustion, vaporization, and formation for di-n-propyldiazene N-oxide and di-t-butyldiazene N-oxide, J. Chem. Thermodyn., 1981, 13, 139-145. [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]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References