CATENA-POLY[SILVER(I)-MU-(CYANO-C-N)-CIS-BIS-(2,2'-BIPYRIDINE-N,N')COPPER(II)-MU-(CYANO-N-C)] DICYANOARGENTATE(I) MONOHYDRATE

The structure of the title complex is built up of positively charged zigzag chains running parallel to the b axis with the composition cis[-mu-CN-Cu(bpy)2-mu-NC-Ag-]+ (bpy = 2,2'-bipyridine), isolated [Ag(CN)2]- anion and non-coordinated water molecule. The Cu atom is coordinated in the form of a very deformed tetragonal bipyramid (4 + 1 + 1) with unequal distortion of the axial bonds [2.239 (4) and 2.676 (5) angstrom]. Three crystallographically independent Ag atoms are coordinated linearly by two cyano groups and they are placed along the b axis forming an infinite chain with short Ag...Ag distances [3.0439 (4) and 2.9866 (4) angstrom]. One of the two noncoordinated independent water molecules shows partial occupancy of its disordered position.