Diazene, dipropyl

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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
Δfgas14.9kcal/molN/ALebedeva, Masalitinova, et al., 1980Value computed using ΔfHliquid° value of 22.0 kj/mol from Lebedeva, Masalitinova, et al., 1980 and ΔvapH° value of 40.4 kj/mol from Engel, Wood, et al., 1974.; DRB
Δfgas12.4kcal/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976; ALS

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
Δfliquid5.3kcal/molCcbLebedeva, Masalitinova, et al., 1980 
Δfliquid2.74kcal/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976
Quantity Value Units Method Reference Comment
Δcliquid-1047.8 ± 0.3kcal/molCcbLebedeva, Masalitinova, et al., 1980 
Δcliquid-1045.25 ± 0.21kcal/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976

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

Quantity Value Units Method Reference Comment
Tboil386. to 388.KN/ABuckingham and Donaghy, 1982BS
Quantity Value Units Method Reference Comment
Δvap9.532kcal/molN/AMajer and Svoboda, 1985 
Δvap9.54 ± 0.1kcal/molCEngel, Melaugh, et al., 1976AC
Δvap9.64kcal/molVEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976; ALS
Δvap9.66kcal/molN/AEngel, Wood, et al., 1974DRB

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
9.44300.UVEngel, Wood, et al., 1974Based on data from 295. to 305. K.; AC

References

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

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


Notes

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