REACTIONS OF C-60 AND C-70 WITH CYCLOPENTADIENE

被引：67
作者：
PANG, LSK
WILSON, MA
机构：
[1] CSIRO Division of Coal and Energy Technology, North Ryde, NSW 2113
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 26期
关键词：
D O I：
10.1021/j100128a001
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 kinetics of addition of cyclopentadiene to fullerene C60 and fullerene C70 have been studied in the temperature range 291-354 K by high-pressure liquid chromatography. The rate of addition of cyclopentadiene to fullerene C60 is about 7 times as fast as the rate of addition to fullerene C70 at 293 K. The activation energies for the two reactions are 29 and 67 kJ mol-1, respectively, and reflect the increased electron density in bonds adjoined to two hexagonal rings (C6-C6 bonds) in C60 relative to C70. The log A frequency factor for the reaction of C70 with cyclopentadiene is over twice that for C60 because of the presence of a greater proportion of C6-C6 bonds.
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页码：6761 / 6763
页数：3
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