NATURE OF THE RADICAL INTERMEDIATES IN THE DECOMPOSITION OF PEROXOVANADIUM SPECIES IN PROTIC AND APROTIC MEDIA

被引：44
作者：
BONCHIO, M
CONTE, V
DIFURIA, F
MODENA, G
MORO, S
EDWARDS, JO
机构：
[1] BROWN UNIV,DEPT CHEM,PROVIDENCE,RI 02912
[2] UNIV PADUA,DIPARTIMENTO CHIM ORGAN,CNR,CTR STUDI MECCANISMI REAZIONI ORGAN,I-35131 PADUA,ITALY
来源：
INORGANIC CHEMISTRY | 1994年 / 33卷 / 08期
关键词：
D O I：
10.1021/ic00086a012
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The decomposition reaction of peroxovanadium species, either formed in situ by addition of H2O2 to vanadium compounds or added as the isolated complex VO(O2) (Pic)(H2O)2 (Pic = picolinic acid anion), has been studied both in aqueous acid solutions and in CH3CN. In all cases, evidence for a radical chain mechanism has been obtained, initiated by the reaction between two molecules of peroxide, either H2O2 or a monoperoxovanadate. The occurrence of vanadium and other intermediate with unpaired electrons have been observed by indirect but rather convincing kinetic evidence.
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页码：1631 / 1637
页数：7
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