A highly selective ‘off–on’ fluorescence chemosensor for Cr(III)

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• 作者：Moloy Sarkar ; Sandip Banthia and Anunay Samanta
• 关键词：4-Aminophthalimide ; Fluorescence chemosensor ; Fluorophore-spacer-receptor system ; Metal ions induced fluorescence enhancement
• 刊名：Tetrahedron Letters
• 出版年：2006
• 出版时间：23 October 2006
• 年：2006
• 卷：47
• 期：43
• 页码：7575-7578
• 全文大小：178 K

文摘

An ‘off–on’ fluorescence chemosensor for the selective signalling of Cr(III) has been designed exploiting the guest-induced inhibition of the photoinduced electron transfer signalling mechanism. The system shows an approximately 17-fold Cr(III)-selective chelation-enhanced fluorescence response in tetrahydrofuran and the system is highly selective against the background of environmentally and biologically relevant metal ions.