A highly selective copper fluorescent indicator based on aminoquinoline substituted BODIPY

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• 作者：Xu Jia ; Xiaoting Yu ; Xiaolong Yang ; Jie Cui ; Xiaoliang Tang ; Weisheng Liu ; Wenwu Qin ; ^{qinww@lzu.edu.cn}
• 关键词：Aminoquinoline ; Copper probe ; Bathochromic shifts ; Time-resolved fluorescence ; C&ndash ; C bond cleavage ; BODIPY
• 刊名：Dyes and Pigments
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：98
• 期：2
• 页码：195-200
• 全文大小：763 K

文摘

A highly selective fluorescent indicator for copper, substituted with an aminoquinoline group at the position 3 or 5 of the BODIPY has been synthesized. The indicator has very low fluorescence quantum yield in acetonitrile with emission maxima at 580?nm. Upon binding copper it shows 50?nm bathochromic shifts with a change of solution color and a large increase in the fluorescence intensity. The fluorescence lifetime in acetonitrile was too short and could not be determined; whereas fluorescence decay profile of the copper complex was described by a mono-exponential decay with the lifetime of 4.38?ns. ESI-MS enabled detection of a Cu¡¤1 CN complexes which was fromed by C-C bond cleavage of acetonitrile.