Spectroscopic and Structural Study of the 1:2 Aluminium(III) Complex of Quercetin

作     者：Tian Le LIN Bao Zhen YAN Gao Fei HU Mei WANG 

作者机构：School of Science Beijing University of Chemical Technology Beijing 100029 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2006年第17卷第7期

页      面：937-940页

核心收录：

学科分类：1002[医学-临床医学] 100203[医学-老年医学] 10[医学] 

主　　题：Quercetin Al(Ⅲ) complexation stoichiometry NMR. 

摘      要：Complex formation between aluminium and quercetin（Q） in methanol was investigated by means of 27^Al solid-state, 13^C and 1^H NMR and MS（ESI）, UV and IR spectra. Formation of the 1：2 complex was favored in methanol relative to all other solvent and the predominant species observed of Al（Ⅲ） has a 1：2 stoichiometry. The fine structure of 1：2 aluminum complex of quercetin was that the aluminum central atom chelated with two quereetin molecules and two methoxyl groups between two five membered rings, its coordination is six, the chelated site was 3-hydroxy-4-carbonyl.