Isatinphenylsemicarbazones as efficient colorimetric sensors for fluoride and acetate anions – Anions induce tautomerism
作者:Klaudia Jakusová、Jana Donovalová、Marek Cigáň、Martin Gáplovský、Vladimír Garaj、Anton Gáplovský
DOI:10.1016/j.saa.2013.12.073
日期:2014.4
The anion induced tautomerism of isatin-3-4-phenyl(semicarbazone) derivatives is studied herein. The interaction of F−, AcO−, H2PO4-, Br− or HSO4- anions with E and Z isomers of isatin-3-4-phenyl(semicarbazone) and N-methylisatin-3-4-phenyl(semicarbazone) as sensors influences the tautomeric equilibrium of these sensors in the liquid phase. This tautomeric equilibrium is affected by (1) the inter-
本文研究了阴离子诱导的isatin-3-4-苯基(半脲)的互变异构现象。f的互动-,ACO - ,H2PO4--,溴-或HSO4--具有Isatin-3-4-phenyl(semicarbazone)和N -methylisatin-3-4-phenyl(semicarbazone)的E和Z异构体的阴离子会影响这些传感器在液相中的互变异构平衡。这种互变异构平衡受以下因素影响:(1)由于受体分子的溶剂化壳中阴离子诱导的变化,以及(2)传感器与阴离子与尿素氢的相互作用,对异丁苯半脲分子的分子间和分子间相互作用的调节。阴离子的酸碱性质和传感器结构的差异会影响各个互变异构形式的平衡比。在这里,通过“裸眼”实验,UV-VIS光谱和11 H NMR滴定,从而确认实验条件引线的适当选择,以高度传感器选择性一些研究阴离子。传感器的E和Z异构体在灵敏度,选择性和感测机制上有所不同。的F检测-或CH 3 COO