Investigation of bicyclic thioketones as triggers for liquid crystal optical switches

被引：7

作者：

Bradford, RF ^{[1
]}

Schuster, GB ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1021/jo0264675

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The axially chiral bicyclic thioketones 11 and 15 were prepared and investigated for suitability as chiroptical triggers in a liquid crystal optical switch. Irradiation of partially resolved 15 with unpolarized light leads to its conversion to the racemic form (photoracemization). However, irradiation of racemic thioketones 11 and 15 with circularly polarized light does not lead to detectable photoresolution. The lack of photoresolution was traced to inefficiency in intramolecular, through-bond triplet energy transfer. These thioketones are not suitable for use as phototriggers.

引用

页码：1075 / 1080

页数：6

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