Thermodynamic properties of 1-methylcyclopentanol and 1-chloro-1-methylcyclopentane in the ideal gas state

被引：8

作者：

Blokhin, AV ^{[1
]}

Kabo, GJ ^{[1
]}

Kozyro, AA ^{[1
]}

Ivashkevich, LS ^{[1
]}

Krasulin, AP ^{[1
]}

Diky, VV ^{[1
]}

Maksimuk, YV ^{[1
]}

机构：

[1] BELARUSSIAN STATE UNIV, DEPT CHEM, MINSK 220080, BELARUS

来源：

THERMOCHIMICA ACTA | 1997年 / 292卷 / 1-2期

关键词：

1-methylcyclopentanol; 1-chloro-1-methylcyclopentane; thermodynamic properties; plastic crystals; vibrational spectra;

D O I：

10.1016/S0040-6031(96)03107-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The enthalpies of evaporation, the saturated vapor pressures of 1-methylcyclopentanol (I) and 1-chloro-1-methylcyclopentane (II) and the energy of combustion of crystal I were measured. IR and Raman spectra of both compounds were recorded and vibrational analyses were made. Thermodynamic functions of I and II in the ideal gas state were calculated by the statistical thermodynamics methods. In order that the experimental and calculated entropies of gaseous 1,1-CIMeCP agree, it is necessary to determine the contribution of pseudorotation as the contribution of motion with potential function V(phi) = {5800 - 3060 cos(phi) - 2740 cos(2 phi)} J mol(-1) and pseudorotational moment of inertia 15.24 x 10(-40) g cm(2). The molecular rotation in the plastic crystal state of II is discussed. (C) 1997 Elsevier Science B.V.

引用

页码：19 / 29

页数：11

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