Saturated vapor pressure and sublimation enthalpy of fluorine derivatives of C60

被引：30

作者：

Boltalina, OV

Markov, VY

Borschevskii, AY

Galeva, NA

Sidorov, LN

Gigli, G ^{[1
]}

Balducci, G

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia

[2] Univ Rome La Sapienza, Dipartimento Chim, I-00185 Rome, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1999年 / 103卷 / 19期

关键词：

D O I：

10.1021/jp983786k

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：

Knudsen cell mass spectrometry and Knudsen effusion method were used to determine the saturated vapor pressures of fluorine derivatives C60F36 and C60F48 in the temperature intervals 408-539 K and 395-528 K, respectively; the recommended values are described by the temperature equations: In(p{C60F36}/Pa) = (-16292 +/- 939)/(T/K) + (30.90 +/- 1.97) and In(p{C60F48}/Pa) = (-13146 +/- 827)/(T/K) + (24.34 +/- 1.71). The sublimation enthalpies were also determined: Delta(sub)H(466)(o){C60F36} = (135 +/- 8) kJ/mol and Delta(sub)H(476)(o){C60F48} = (109 +/- 7) kJ/mol. Ancillary experiments demonstrated that C60F48 vaporizes without decomposition.

引用

页码：3828 / 3832

页数：5

共 22 条

[21] HIGHLY OXYGENATED DERIVATIVES OF FLUORINATED C-60, AND THE MODE OF FRAGMENTATION OF THE FLUORINATED CAGE UNDER ELECTRON-IMPACT IONIZATION CONDITIONS [J].