Diazene, dibutyl

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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas4.61kcal/molN/ALebedeva, Masalitinova, et al., 1980Value computed using ΔfHliquid° value of -30.0 kj/mol from Lebedeva, Masalitinova, et al., 1980 and ΔvapH° value of 49.3 kj/mol from Engel, Montgomery, et al., 1978.; DRB
Δfgas2.19 ± 0.90kcal/molCcbEngel, Montgomery, et al., 1978ALS

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-7.2kcal/molCcbLebedeva, Masalitinova, et al., 1980 
Δfliquid-9.59 ± 0.90kcal/molCcbEngel, Montgomery, et al., 1978 
Quantity Value Units Method Reference Comment
Δcliquid-1360.0 ± 0.3kcal/molCcbLebedeva, Masalitinova, et al., 1980 
Δcliquid-1357.65 ± 0.86kcal/molCcbEngel, Montgomery, et al., 1978 

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Δvap11.79kcal/molN/AMajer and Svoboda, 1985 
Δvap11.79 ± 0.05kcal/molVEngel, Montgomery, et al., 1978ALS
Δvap11.8kcal/molN/AEngel, Montgomery, et al., 1978DRB
Δvap11.8 ± 0.05kcal/molCEngel, Montgomery, et al., 1978AC

Reduced pressure boiling point

Tboil (K) Pressure (atm) Reference Comment
332. - 333.0.024Buckingham and Donaghy, 1982BS

Reaction 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Hydrogen + Diazene, dibutyl = Hydrazine, 1,2-dibutyl-

By formula: H2 + C8H18N2 = C8H20N2

Quantity Value Units Method Reference Comment
Δr-16.4 ± 0.2kcal/molChydEngel, Owens, et al., 1993liquid phase; solvent: Hexane

References

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

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

Lebedeva, Masalitinova, et al., 1980
Lebedeva, N.D.; Masalitinova, T.N.; Mon'yakova, O.N.; Oleinikova, T.P., Energy of hydrazone = azo compound tautomeric transformation, J. Org. Chem. USSR (Engl. Transl.), 1980, 16, 226-228. [all data]

Engel, Montgomery, et al., 1978
Engel, P.S.; Montgomery, R.L.; Mansson, M.; Leckonby, R.A.; Foyt, H.L.; Rossini, F.D., Enthalpies of combustion, vaporization, and formation of methyl-n-butyldiazene and di-n-butyldiazene, J. Chem. Thermodyn., 1978, 10, 205-211. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [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]

Engel, Owens, et al., 1993
Engel, P.S.; Owens, W.H.; Wang, C., The heat of oxidation of 1,2-di-n-butylhydrazine to azo-n-butane, J. Phys. Chem., 1993, 97, 10486-10488. [all data]


Notes

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