Synthesis and properties of novel fluorescent switches

被引：215

作者：

Golovkova, TA ^{[1
]}

Kozlov, DV ^{[1
]}

Neckers, DC ^{[1
]}

机构：

[1] Bowling Green State Univ, Ctr Photochem Sci, Bowling Green, OH 43403 USA

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2005年 / 70卷 / 14期

关键词：

D O I：

10.1021/jo050540k

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Photochromic dithienylethene moieties were covalently attached to fluorescent 4,4-difluoro-8-(4'iodophenyl)-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene (iodo-BODIPY) via a phenylacetylene linker. UV light induced isomerization of the photochrome results in significant decrease in fluorescence intensity. This fluorescence can be recovered with visible light. Steady-state fluorescence measurements demonstrate that the emission of the dye can be modulated by external light. An intramolecular energy transfer mechanism accounts for the fluorescence quenching in the UV light produced isomers.

引用

页码：5545 / 5549

页数：5

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