Electrochemical Studies on the Intermetallic Interaction in Polynuclear Complexes Preparation, Structure and Electrochemical Properties of Terpyridine Complexes

Abstract

Abstract: The syntheses, structures and electrochemistry of two Co(Ⅱ) complexes Co(Ⅱ)(L1)₂ (ClO₄)₂·4CH₃CN(1) and Co(Ⅱ)(L2)₂ (ClO₄)₂·H₂O(2) prepared from ligands L1(4'-phenyl-2,2':6',2″-terpyridine) and L2(4'-ferrocenyl-2,2':6',2″-terpyridine) are reported in this paper. The electrochemical investigation shows that the oxidation potential of ferrocene unit in 2 has a 0.14 V positive-shift from that of ferrocenyl group in L2 for the introduction of Co ²⁺ and, in the meantime, that the redox potential of cobalt centre in complex 2 has a 0.06 Vnegative-shift from that of cobalt centre in complex 1. This observation strongly suggests that in complex 2, there is an intermetallic interaction between Co(Ⅱ) and Fe(Ⅱ) conducted by the molecular fragment.

Key words: Ferrocene, Terpyridine, Electronic interaction

CLC Number:

O614.8

TrendMD:

YIN Ye-Gao, CHEUNG Kung-Kai, Huang-Yong-De . Electrochemical Studies on the Intermetallic Interaction in Polynuclear Complexes Preparation, Structure and Electrochemical Properties of Terpyridine Complexes[J]. Chem. J. Chinese Universities, 1998, 19(9): 1369.

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Electrochemical Studies on the Intermetallic Interaction in Polynuclear Complexes Preparation, Structure and Electrochemical Properties of Terpyridine Complexes

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