Novel fluorescent sensor for Zn(II) based on bis(pyrrol-2-yl-methyleneamine) ligands

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• 作者：Wu ; Zhikun ; Chen ; Qingqi ; Yang ; Guoqiang ; Xiao ; Chengbin ; Liu ; Jingang ; Yang ; Shiyong ; Ma ; Jin Shi
• 关键词：Fluorescent sensor ; Ratiometric ; Bis(pyrrol-2-yl-methyleneamine) ; Zinc
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2004
• 出版时间：May 1, 2004
• 年：2004
• 卷：99
• 期：2-3
• 页码：511-515
• 全文大小：140 K

文摘

Three new bis(pyrrol-2-yl-methyleneamine) ligands 5–7 were synthesized in high yields via condensation of diamines 2–4 with two equivalents of 2-formyl-pyrrole 1. Compounds 5–7, which absorb UV light between 352 and 354nm in THF without fluorescence, display obvious fluorescence with excitation between 400 and 413nm and emission between 503 and 510nm upon complexation with Zn²⁺. Based on its fluorescent properties and selectivity toward different metal ions, ligand 5 is a very promising fluorescent materials for a zinc ion sensor.