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
收藏
页码：3828 / 3832
页数：5
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