Synthesis and Crystal Structure of Co(DMSO)2(H2O)2(SCN)2 with One-dimensional Hydrogen-bonded Structure (DMSO = Dimethylsulfoxide)

The title complex Co(DMSO)2(H2O)2(SCN)2 has been prepared and structurally characterized. It crystallizes in monoclinic, space group P21/n with a = 5.1981(9), b = 11.944(2), c = 12.646(2) (A), β = 98.686(2)°, V = 776.2(2) (A)3, C6H16CoN2O4S4, Mr = 367.38, Z = 2, Dc = 1.572 g/cm3, F(000) = 378 and μ(MoKa) = 1.646 mm-1. The structure was refined to R = 0.0232 and wR = 0.0645 for 1241 observed reflections with I > 2σ(I). In the title complex, each Co(II) atom is octahedrally coordinated by four O atoms from two DMSO ligands and two water molecules as well as two N atoms from SCN-ions. The title molecules are connected to each other through intermolecular hydrogen bonds to form a 1-D structure extended by eight-membered Co2O4H2 rings.