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Piperazine

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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:
ALS - H.Y. Afeefy, J.F. Liebman, and S.E. Stein
DRB - D.R. Burgess

QuantityValueUnitsMethodReferenceComment
Deltafgas25. ± 6.3kJ/molCcbAn, Zhang, et al., 1981ALS
Deltafgas21.2kJ/molN/ABedford, Beezer, et al., 1963Value 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

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.

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]


Notes

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