Electrochemical Study of (RC2R')Co2(CO)6 and Their Reaction with Lewis Base

Abstract

Abstract: Two new clusters (C₆H₅C₂C₆H₄-Br-p)Co₂(CO)_6-n(PPh₃)n(n= 1,2) were synthesized.The electrochemical behavior of a series of (RC₂R')Co₂(CO)_6-nL_n(n=0,1,2;L = PPh₃) and (RC₂R').Co₂(CO)₆ in the presence of PPh₃were studied in acetone by utilizing cyclic voltammetry.For (RC₂R')Co₂(CO)_6-nL_n, their main electrode processes are as follows:(RC₂R')Co₂(CO)_6-n, L_n+e=(RC₂R')Co₂(CO)_6-n, L_n^-The reduction potential of this process is related to both RC₂R' and L.The larger the charg density in C₂Co₂, the more difficultly by the cluster is to be reduced and the easier to be oxidized, which indicates that the energy level of frontier molecular orbital of cluster is related to both cobalt and ligand.The cluster radical is a catalyst for electron transferred catalyzed (ETC) reaction.

Key words: Cobalt, Carbonyl cluster, Lewis base, Synthesis, Cyclic voltammetry

TrendMD:

Meng Qingjin, Sun Shouheng, Bu Xiuren, You Xiaozeng . Electrochemical Study of (RC₂R')Co₂(CO)₆ and Their Reaction with Lewis Base[J]. Chem. J. Chinese Universities, 1989, 10(10): 1026.

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Electrochemical Study of (RC₂R')Co₂(CO)₆ and Their Reaction with Lewis Base

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