Synthesis and structure of tetranuclear zinc(<scp>II</scp>) and binuclear copper(<scp>II</scp>) complexes of a dithiolate compartmental macrocyclic ligand: a model for the binuclear Cu_Asite in cytochrome c oxidase and N₂O reductase

Abstract

The tetranuclear cluster [Zn2L(µ-OH)]2[ClO4]2·2H2O (L = dianion of the condensation product of 1,3-diaminopropane and 2,6-diformyl-4-methylthiophenol) shows two unique dinuclear ZnII units linked by two µ-hydroxy bridges; the structure of the CuII complex [Cu2L(HOMe)2](NO3)]PF6 shows square-pyramidal coordination at the Cu centres with two thiolate bridges and two terminal N-donors, with a Cu⋯Cu separation of 3.264(2)Å.