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Complexes of Cu~Ⅱ, Ni~Ⅱ, Co~Ⅱ, Zn~Ⅱ, Fe~Ⅲ, Cr~Ⅲ, Cd~Ⅱ and Mn~Ⅱ with the natural product 5-hydroxy-7,4′-dimethoxyflavone(1) have been prepared and their probable structures were proposed on the basis of elemental analyses, thermal analyses and IR and UV sp