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