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Piperazine

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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 as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafsolid-41.8 ± 1.1kJ/molCcbAn, Zhang, et al., 1981ALS
Deltafsolid-45.6 ± 1.6kJ/molCcbBedford, Beezer, et al., 1963ALS
Quantity Value Units Method Reference Comment
Deltacsolid-2961.4 ± 1.1kJ/molCcbAn, Zhang, et al., 1981ALS
Deltacsolid-2957.6 ± 1.6kJ/molCcbBedford, Beezer, et al., 1963ALS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
237.413.Bobylev, Kamskaya, et al., 1988T = 413 to 473 K.; DH

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]

Bobylev, Kamskaya, et al., 1988
Bobylev, V.A.; Kamskaya, O.I.; Kossoi, A.A.; Koludarova, E.Yu., Investigation of the heat capacity of ethyleneamines by differential scanning calorimetry, Zhur. Obshch. Khim., 1988, 58, 2536-2538. [all data]


Notes

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