PHOTOENOLIZATION MECHANISM OF 2-METHYLBENZOPHENONE

被引：22

作者：

UJIIE, K

KIKUCHI, K

KOKUBUN, H

机构：

[1] Department of Chemistry, Faculty of Science, Tohuku University, Sendai, 980, Aoba, Aramaki

来源：

JOURNAL OF PHOTOCHEMISTRY | 1979年 / 10卷 / 02期

关键词：

D O I：

10.1016/0047-2670(79)80002-7

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：

The photoenolization of 2-methylbenzophenone was investigated by conventional and laser flash photolysis. Two kinds of transient absorption were distinctly observed in the ethanol and the dioxane solutions. The short lived transient was assigned to the cis-dienol and the long lived transient to the trans-dienol. The Stern-Volmer plots for the yields of these dienols gave different quenching constants when naphthalene was used as a triplet quencher. It was concluded that the cis-dienol is produced from the n-Π* triplet state of 2-methylbenzophenone with s-cis conformation and the trans-dienol from the triplet state with s-trans conformation. © 1979.

引用

页码：145 / 157

页数：13

共 32 条

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