设计了两个基于吡唑的传感器，它们具有相似的结构，但对阴离子的荧光响应不同。
Design of two pyrazole-based sensors with similar configuration and different fluorescent response to anions.
机构信息
Department of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China.
出版信息
J Fluoresc. 2010 Jan;20(1):3-8. doi: 10.1007/s10895-009-0514-7. Epub 2009 Jul 2.
Two simple fluorescent anion receptors based on 1-phenyl-3-methylpyrozole-5-one-4-one phenylhydrazone (L1) and 1-phenyl-3-methylpyrozole-5-one-4-one p-nitrophenylhydrazone (L2) were designed, synthesized and characterized with (1)H NMR, COSY spectrum, (13)C NMR, ESI-mass and elemental analyse. Interestingly, two receptors with similar configuration exhibited different anion binding behaviors in DMSO solution. The results of Job plots and ESI-mass spectrum indicate that L1 bind anions such as F(-), AcO(-), H(2)PO (4) (-) to form 2:1 host-guest complexation, while L2 bind anions to form 1:1 host-guest complexation in the solution.
基于 1-苯基-3-甲基吡唑啉-5-酮-4-酮苯腙（L1）和 1-苯基-3-甲基吡唑啉-5-酮-4-酮对硝基苯腙（L2），设计、合成了两个简单的荧光阴离子受体，并通过（1）H NMR、COSY 谱、（13）C NMR、ESI-质谱和元素分析进行了表征。有趣的是，两个具有相似结构的受体在 DMSO 溶液中表现出不同的阴离子结合行为。Job 图和 ESI-质谱的结果表明，L1 与 F(-)、AcO(-)、H(2)PO(4)(-)等阴离子形成 2:1 的主客体配合物，而 L2 在溶液中与阴离子形成 1:1 的主客体配合物。
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