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利用1,1’-双羧酸二茂铁为配体设计合成了一个新的二茂铁-钴四核双螺旋配合物并研究了其电化学性能。该配合物具有一个垂直于其螺旋轴的C2对称性,四个金属中心形成一个边长为5.4?菱形结构。二茂铁配体的两个羧基以顺式结构与两个金属中心配位。电化学研究表明作为桥联基团的金属钴配位中心能够有效传递二茂铁基团间的氧化还原性能。
A new ferrocene-cobalt tetranuclear double helix complex was designed and synthesized by using 1,1’-dicarboxylic acid ferrocene as ligand and its electrochemical performance was studied. The complex has a C2 symmetry perpendicular to its helical axis, with four metal centers forming a diamond-like structure with a side length of 5.4 Å. The two carboxyl groups of the ferrocene ligand coordinate to two metal centers in a cis-configuration. Electrochemical studies show that the metal cobalt coordination centers as bridging groups can effectively transfer the redox properties between ferrocene groups.