酰腙类化合物的合成和阴离子识别研究

Aryloxyacetyl Hydrazone Receptors:Synthesis and Anion Recognition Properties

本文设计合成了3种新型的酰腙类受体分子。利用紫外-可见吸收光谱及1HNMR考察了其与F-、Cl-、Br-、I-、CH3COO-、HSO4-、NO3-等阴离子的作用。结果表明,该类受体分子能较好地识别阴离子F-和CH3COO-,在DMSO溶液中主客体之间形成氢键加合物。尤其对于受体3(间苯双对硝基苯氧乙酰腙),加入F-和CH3COO-时,溶液颜色有明显变化,受体3对这两种阴离子可实现裸眼识别。

The synthesis, UV-Vis and ^1H NMR studies of aryloxyacetyl hydrazone colorimetric sensors for anions ate presented. These sensors can recognize anions through hydrogen binding even in competitive DMSO solutions, especially, the receptor 3 （1,3-benzyldi（p-nitro-methylphenyloxy）acetylhydrazone） gives rise to large color change that are clearly visible to the naked eye at the presence of F^- and CH3COO^-. The results indicate that receptors 1, 2 and 3 complex with anions such as F^-, CH3COO^- by multiple hydrogen bonding interactions.