VAPOR-PRESSURE OF C-60 BUCKMINSTERFULLERENE

被引：97

作者：

PIACENTE, V

GIGLI, G

SCARDALA, P

GIUSTINI, A

FERRO, D

机构：

[1] Univ di Roma 'La Sapienza', Roma

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 38期

关键词：

D O I：

10.1021/j100038a041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The equilibrium pressures over C-60 were measured over a large temperature range, 730-990 K, by the torsion effusion and Knudsen effusion methods. The data obtained are well represented by the following selected linear equation: log(p/kPa) = (8.28 +/- 0.20) - (9154 +/- 150)/T. Considering the vapor phase constituted by only C-60(g), the sublimation standard enthalpy of this compound, Delta(sub)H(0)(298) = 181 +/- 2 kJ mol(-1), as derived by second- and third-law elaboration of the experimental data, is proposed. Considerations on free energy functions of the solid C-60 are also reported.

引用

页码：14052 / 14057

页数：6

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