CONFORMATIONAL ISOMERISM OF PHOSPHORUS-CONTAINING FULLERENYL RADICALS

被引：5
|
作者：
TUMANSKII, BL
BASHILOV, VV
SOLODOVNIKOV, SP
BUBNOV, NN
KHODAK, AA
机构：
[1] A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 117813
来源：
RUSSIAN CHEMICAL BULLETIN | 1994年 / 43卷 / 09期
关键词：
FULLERENE; PHOSPHORUS-CONTAINING FULLERENYL RADICALS; CONFORMATIONAL ISOMERISM; ESR;
D O I：
10.1007/BF00697155
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
ESR spectra of phosphorus-containing fullerenyl radicals C-.(60)-P(O)(OPri)(2) and C-.(60)-P(O)(OEt)Ph were studied at low temperatures (193-273 K). A decrease in the rate of rotation of organophosphorus group around the C-P bond results first in line broadening and then in the appearance of two doublets due to two ''extreme'' conformations, which have different g-factors and hyperfine coupling constants (HCC) of the unpaired electron with the P-31 nucleus. The kinetic and thermodynamic parameters of the conformational isomerism were calculated.
引用
收藏
页码：1582 / 1584
页数：3
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