Two Multi-armed Neutral Receptors for α,ω-Dicarboxylate Anions
Two Multi-armed Neutral Receptors for α,ω-Dicarboxylate Anions作者机构：Department of Chemistry Wuhan University Wuhan Hubei 430072 China
出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)
年 卷 期：2006年第24卷第4期
页 面：527-532页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 080202[工学-机械电子工程] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 0802[工学-机械工程]
基 金：Project supported by the National Natural Science Foundation of China (No. 20372054)
主 题：neutral receptor anion recognition colorimetric chemosensor dicarboxylate UV-Vis spectrum
摘 要：Two new multi-armed neutral receptors 1 and 2 containing thiourea and amide groups were synthesized by simple steps in good yields. Receptors 1 and 2 have a better selectivity and higher association constants for malonate anion than other anions examined by the present work. In particular, distinct color changes were observed upon addition of dicarboxylate anions to the solution of 1 in DMSO. The UV-Vis and fluorescence spectra data indicate that a 1 ： 2 stoichiometry complex was formed between compound 1 or 2 and dicarboxylate anions of shorter carbon chain, and a 1 ： 1 stoichiometry complex was formed between compound 1 or 2 and dicarboxylate anions of longer carbon chain through hydrogen bonding interactions.
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