Studies on the Biomimetic Catalytic Character of New Schiff Base Mono- and Di-nuclear Complexes

Abstract

Abstract: This paper first reports the biomimetic catalytic character of new Schiff base mononuclear complexes MH₂L｛M = Mn(Ⅱ), Fe(Ⅲ)Cl, Cr(Ⅲ)Cl, Cu(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Zn(Ⅱ); L = bis[N,N'-ethylene-2,2'-(phenylmethylene)bis(3,4-dimethylpyrrole-5-aldimino)]｝ and dinuclear complexes MnML[M = Mn(Ⅱ), Fe(Ⅲ)Cl, Cr(Ⅲ)Cl, Cu(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Zn(Ⅱ)] for the monooxygenation of cyclohexane with PhIO. The results showed that the catalytic property of the dinuclear complex is better than that of the mononuclear complex, so we supposed that there is some cooperation between the two metals in these dinuclear complexes. It seems that this cooperation increases with the increase of the number of unpaired d electrons in the dinuclear complexes.

Key words: Schiff base, Mononuclear complexes, Dinuclear complexes, Biomimetic catalysis, Cooperation

CLC Number:

O627.7

TrendMD:

CHEN Xin-Bin, ZHU Shen-Jie, GUI Ming-De, YANG Yan. Studies on the Biomimetic Catalytic Character of New Schiff Base Mono- and Di-nuclear Complexes[J]. Chem. J. Chinese Universities, 2000, 21(7): 1048.

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Studies on the Biomimetic Catalytic Character of New Schiff Base Mono- and Di-nuclear Complexes

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