Bidirectional switching of near IR emitting boradiazaindacene fluorophores
Bidirectional switching of near IR emitting boradiazaindacene fluorophores
复制标题
DOI：
10.1021/ol801062h
复制
发表时间：
2008-08-21
期刊：
影响因子：
5.2
通讯作者：
Akkaya, Engin U.
中科院分区：
文献类型：
--
作者：
Deniz, Erhan;Isbasar, G. Ceyda;Akkaya, Engin U.
两种具有二甲氨基苯基和吡啶乙烯基取代基的新型二酰基硼二氮二烯染料在有机溶剂中与TFA发生质子化反应时表现出相反的光谱位移。这种染料的双向切换可以被证明与附着在BODIPY核心上的取代基的ICT供体和受体特征直接相关。观察到的这些染料的光谱响应可以为设计新型的近红外荧光比例pH探针提供有用的信息。
Two novel distyryl-boradiazaindacene dyes with dimethylaminostyryl and pyridylethenyl substituents display opposite spectral shifts on protonation with TFA in organic solvents. This bidirectional switching of the dyes can be shown to be directly related to ICT donor and acceptor characteristics of the substituents attached to the BODIPY core. The observed spectral response of these dyes could be very useful in the design of novel NIR fluorescent ratiometric probes for pH.