STRUCTURES OF THE CADMIUM HALIDE-COMPLEXES [(CDCL2(DMSO)(MEOH))N] AND [(CDBR2(DMSO)(MEOH))N] WITH COORDINATED DIMETHYL-SULFOXIDE AND METHANOL

Cadmium chloride and bromide form halogen-bridged polymeric chain complexes catena-poly[{(dimethyl sulfoxide)(methanol)cadmium}di-mu-chloro] [{CdCl2(dmso)(MeOH)}n] (dmso = dimethyl sulfoxide) and catena-poly[{(dimethyl sulfoxide)(methanol)cadmium}di-mu-bromo] [{Cd-Br2(dmso)(MeOH)}n] with Cd in octahedral coordination. With the chloride, the dmso and MeOH ligands are in trans positions. The hydroxylic proton of the coordinated methanol enters into hydrogen bonding with the O atom of a dmso ligand coordinated to an adjacent Cd centre in the same chain. The bromide differs in having the dmso and MeOH ligands in cis positions, with each chain now linked to its four neighbours through hydrogen bonding.