SYNTHESIS AND STRUCTURAL STUDIES OF Mo-Fe-S COMPOUNDS Ⅵ.CYCLIC VOLTAMMETRIC AND MÖSSBAUER STUDIES ON DOUBLECUBANE CLUSTER COMPOUNDS WITH[MoFe3S4]CORE

Chinese Journal of Applied Chemistry ›› 1988, Vol. 0 ›› Issue (5): 67-70.

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SYNTHESIS AND STRUCTURAL STUDIES OF Mo-Fe-S COMPOUNDS Ⅵ.CYCLIC VOLTAMMETRIC AND MÖSSBAUER STUDIES ON DOUBLECUBANE CLUSTER COMPOUNDS WITH[MoFe₃S₄]CORE

Kang Beisheng, Liu Hanqin, Wang Fang, Guo Zhi, Cheng Wenzhang, Lu Canzhong, Wang Xinpei, Lu Jiaxi

Fujian Institute of Research on the Structure of Matter and Fujian Laboratory of Structural Chemistry, Academia Sinica, Fuzhou

Received:1987-11-05 Revised:1988-04-22 Published:1988-10-10 Online:1988-10-10

Abstract

Abstract: The cyclic voltammetric properties of a series of double-pseudo-cubane cluster compounds (Et₄N)₄[Mo₂Fe₇S₈(SR)₁₂](R=Ph,1;R=o-tolyl,2;R=m-tolyl,3;R=P-tolyl,4)were studied in 0-2.0V vs.SCE.All the compounds showed two redox couples corresponding to the single-electron redox reaction of two [MoFe₃S₄]³⁺cubane cores respectively.Mssbauer spectrum of 3·2THF recorded at liquid nitrogen temperature indicates the existence of three types of Fe site in the compound.They are four coordinate 2Fe(Ⅲ)+Fe(Ⅱ)of high spin in the[MoFe₃S₄]³⁺ core with average oxidation state of Fe at +2.67 and sixcoordinate Fe(Ⅱ) of high spin in Fe(SR)₆ bridge.

Key words: Cluster compound, Double-cubane compound with[MoFe₃S₄], Cyclie voltammetry, Mössbauer Spectroscopy

Kang Beisheng, Liu Hanqin, Wang Fang, Guo Zhi, Cheng Wenzhang, Lu Canzhong, Wang Xinpei, Lu Jiaxi. SYNTHESIS AND STRUCTURAL STUDIES OF Mo-Fe-S COMPOUNDS Ⅵ.CYCLIC VOLTAMMETRIC AND MÖSSBAUER STUDIES ON DOUBLECUBANE CLUSTER COMPOUNDS WITH[MoFe₃S₄]CORE[J]. Chinese Journal of Applied Chemistry, 1988, 0(5): 67-70.

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SYNTHESIS AND STRUCTURAL STUDIES OF Mo-Fe-S COMPOUNDS Ⅵ.CYCLIC VOLTAMMETRIC AND MÖSSBAUER STUDIES ON DOUBLECUBANE CLUSTER COMPOUNDS WITH[MoFe₃S₄]CORE

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