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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
Deltafgas14.9kcal/molN/ALebedeva, Masalitinova, et al., 1980Value computed using «DELTA»fHliquid° value of 22.0 kj/mol from Lebedeva, Masalitinova, et al., 1980 and «DELTA»vapH° value of 40.4 kj/mol from Engel, Wood, et al., 1974.; DRB
Deltafgas12.4kcal/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
Deltafliquid5.3kcal/molCcbLebedeva, Masalitinova, et al., 1980 
Deltafliquid2.74kcal/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976
Quantity Value Units Method Reference Comment
Deltacliquid-1047.8 ± 0.3kcal/molCcbLebedeva, Masalitinova, et al., 1980 
Deltacliquid-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. - 388.KN/ABuckingham and Donaghy, 1982BS
Quantity Value Units Method Reference Comment
Deltavap9.532kcal/molN/AMajer and Svoboda, 1985 
Deltavap9.54 ± 0.1kcal/molCEngel, Melaugh, et al., 1976AC
Deltavap9.64kcal/molVEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976; ALS
Deltavap9.66kcal/molN/AEngel, Wood, et al., 1974DRB

Enthalpy of vaporization

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

Gas Chromatography

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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

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryMethyl Silicone760.Zenkevich, 1999Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, NIST Free Links, 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]

Zenkevich, 1999
Zenkevich, I.G., Precalculation of Gas Chromatographic Retention Indices of Organic Compounds from Boiling Points of their Structural Analogues, Zh. Struct. Khim., 1999, 40, 1, 121-130. [all data]


Notes

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