Synthesis and crystal structure of a cyanido bridged copper(II)-silver( I) bimetallic complex containing a trimeric {Ag(CN)(2)-}(3) anion, Cu(Dach)(2)-Ag(CN)(2)-Cu(Dach)(2)Ag(CN)(2)(3) (Dach = cis-1,2-diaminocyclohexane)

摘要

A new cyanido-bridged bimetallic copper(II)silver( I) complex, Cu(Dach)(2)-Ag(CN)(2) -Cu(Dach)(2) Ag(CN)(2)(3) (1) (Dach = cis-1,2-diaminocyclohexane), has been prepared and characterized by IR spectroscopy and single crystal X- ray analysis. The crystal structure of complex 1 consists of a centrosymmetric trinuclear cation and three non- coordinated Ag(CN)(2)(-) ions assembled in the form of a trimer, {Ag(CN)(2) -}(3). The complex ion is made up of two Cu(Dach)(2)(2+) units connected by a bridging Ag(CN)(2)(-) anion. The copper atom in the complex ion assumes a distorted square pyramidal geometry with CN- nitrogen atoms occupying the apical position. The trinuclear units are joined by hydrogen bonding to form irregular chains.