- Formula: C4H10N2
- Molecular weight: 86.1356
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: GLUUGHFHXGJENI-UHFFFAOYSA-N
- CAS Registry Number: 110-85-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: Hexahydropyrazine; Antiren; Diethylenediamine; Diethyleneimine; Dispermine; Eraverm; Lumbrical; Piperazidine; Pipersol; Pyrazine hexahydride; Pyrazine, hexahydro-; Uvilon; Worm-A-Ton; Wurmirazin; 1,4-Diazacyclohexane; 1,4-Piperazine; 1,4-Diethylenediamine; Hexahydro-1,4-diazine; Piperazine, anhydrous; Asca-Trol No. 3; Piperazin; UN 2579; Vermex; Upixon; NSC 474
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Gas phase thermochemistry data
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Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
|fH°gas||6.0 ± 1.5||kcal/mol||Ccb||An, Zhang, et al., 1981||ALS|
|fH°gas||5.07||kcal/mol||N/A||Bedford, Beezer, et al., 1963||Value computed using «DELTA»fHsolid° value of -45.6±1.6 kj/mol from Bedford, Beezer, et al., 1963 and «DELTA»subH° value of 66.8 kj/mol from An, Zhang, et al., 1981.; DRB|
Go To: Top, Gas phase thermochemistry data, Notes
An, Zhang, et al., 1981
An, X.-W.; Zhang, Z.-L.; Wang, S.-N.; Yan, J.-Q.; Hu, R.-H., Investigation on bond energies: the heat of combustion of hippuric acid, piperazine and azacycloheptane, Acta Chim. Sin., 1981, 39, 485-492. [all data]
Bedford, Beezer, et al., 1963
Bedford, A.F.; Beezer, A.E.; Mortimer, C.T., Heats of formation and bond energies. Part X. 1,2,5,6-tetrahydropyridine, piperidine, and piperazine, J. Chem. Soc., 1963, 2039-2043. [all data]
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
fH°gas Enthalpy of formation of gas at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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