Effects Of Direction Of Bridging Of Thiocyanato On The Dimension Of Coordination Polymers: Synthesis, Characterization And Single-Crystal X-Ray Structure Determination Of [Cd(4,4 '-Dm-2,2 '-Bpy)(Ncs)(2)](N) And [Cd(4,4 '-Dmo-2,2 '-Bpy)(Ncs)(2)](N) Coordination Polymers

Two new cadmium(II)-thiocyanato coordination polymers with 4,4'-dimethyl-2,2'-bipyridine (4,4'-dm-2,2'-bpy) and 4,4'-dimethoxy-2,2'-bipyridine (4,4'-dmo-2,2'-bpy) as chelating ligands were synthesized and characterized by elemental analysis, IR and H-1 NMR spectroscopy and X-ray crystallography. Thermal properties were also studied as well. These complexes have formed as [Cd(4,4'-dm-2,2'-bpy)(NCS)(2)](n) (1) and [Cd(4,4'-dmo-2,2'-bpy)(NCS)(2)](n) (2). The coordination numbers of Cd-II in 1 and 2 are six (CdN4S2). Direction of bridging of thiocyanato anions in 1 and 2 created one- and two-dimensional coordination polymers, respectively. The supramolecular features in these complexes were guided and controlled by weak directional intermolecular interactions.