ESR study on the reactivity of two isomers of LaC82 with disilirane

被引:12
作者
Kato, T
Akasaka, T
Kobayashi, K
Nagase, S
Yamamoto, K
Funasaka, H
Takahashi, T
机构
[1] UNIV TSUKUBA,DEPT CHEM,TSUKUBA,IBARAKI,JAPAN
[2] TOKYO METROPOLITAN UNIV,DEPT CHEM,TOKYO 158,JAPAN
[3] TOKAI WORKS,NUCL FUEL TECHNOL DEV DIV,TOKAI,IBARAKI,JAPAN
[4] POWER REACTOR & NUCL FUEL DEV CORP,TOKAI,IBARAKI,JAPAN
关键词
D O I
10.1007/BF03162060
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
We observed photochemical and thermal addition of disilirane to the LaC82-A isomer, which give new ESR active species. Both ESR spectra of the adducts in photo- and thermal reactions are well simulated by at least six octet components, and the isotropic La coupling constants and g-factors of the six octet components are determined. On the other hand, the reaction of the LaC82-B isomer with disilirane gives no ESR active species. This fact is also verified by mass spectroscopic measurements. The different reactivities with disilirane of the two isomers are not interpreted by a popular view that the two isomers have a different C-82 cage structure, but we rather suggest that the origin of the isomers of metallofullerenes should be re-examined.
引用
收藏
页码:293 / 300
页数:8
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