LASER FLASH-PHOTOLYSIS GENERATION, SPECTRA, AND LIFETIMES OF PHENYLCARBENIUM IONS IN TRIFLUOROETHANOL AND HEXAFLUOROISOPROPYL ALCOHOL - ON THE UV SPECTRUM OF THE BENZYL CATION

被引：119

作者：

MCCLELLAND, RA ^{[1
]}

CHAN, C ^{[1
]}

COZENS, F ^{[1
]}

MODRO, A ^{[1
]}

STEENKEN, S ^{[1
]}

机构：

[1] MAX PLANCK INST STRAHLENCHEM,W-4330 MULHEIM,GERMANY

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1991年 / 30卷 / 10期

关键词：

D O I：

10.1002/anie.199113371

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

What UV/VIS properties are anticipated for the benzyl cation? Studies on substituted benzyl cations created by laser flash photolysis predict a strong band at lambda = 300-310 nm and a (ca. 90%) weaker band at lambda = 430-460 nm for PhCH2. This indicates that the transient formed by pulse radiolysis and described in the literature as a benzyl cation with lambda(max) = 363 nm is probably another carbenium ion, perhaps a cyclohexadienyl cation. The lifetime for PhCh2+ in (CF3)2CHOH is probably only 2-20 ns.

引用

页码：1337 / 1339

页数：3

共 16 条

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