Flash photolysis study of 2,4,6-trimethylpyrylium and 2,4,6-triphenylpyrylium ions: Evidence for oxoniabenzvalene intermediate

被引：0
|
作者：
Sivakumar, A [1 ]
Parimala, S [1 ]
Ramamurthy, P [1 ]
机构：
[1] UNIV MADRAS,SCH CHEM,DEPT INORGAN CHEM,MADRAS 600025,TAMIL NADU,INDIA
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1996年 / 94卷 / 2-3期
关键词：
photochemistry; flash photolysis; photolysis; pyrylium ions; oxoniabenzvalene;
D O I：
10.1016/1010-6030(95)04217-2
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：
A flash photolysis study of 2,4,6-trimethylpyrylium perchlorate (TMP) and 2,4,6-triphenylpyrylium tetrafluoroborate (TPP) was performed in hydroxylic medium. The transient absorptions observed for TMP and TPP in methanol with maxima at 365 and 390 nm respectively are due to the formation of the intermediate oxoniabenzvalene. We also report the triplet-triplet absorption spectrum of TMP in methanol.
引用
收藏
页码：129 / 133
页数：5
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