Synthesis, Characterization and Crystal Structure Determination of Copper (II) Complexes with 2,2′-Dimethyl- 4,4′-bithiazole

Copper(ii) complex [cu(dmbt)2(h2o)](clo4)2 (1) was prepared from the reaction of copper(ii)perchlorate hexahydrate with 2,2'-dimethyl-4,4'-bithiazole (dmbt) ligand in methanol at ambienttemperature. the complex was quantitatively and qualitatively characterized by elemental analysis,absorption and infrared spectrometries. complex [cu(dmso)5](clo4)2 (2) was also synthesizedfrom the recrystallization of complex [cu(dmbt)2(h2o)](clo4)2 (1) in the dimethyl sulfoxidesolvent through a slow evaporation of the solvent at room temperature. the compound wascharacterized by elemental analysis, infrared spectrometry and single-crystal x-ray diffraction.crystallographic analysis of this complex revealed that the single crystal of this compound iscrystallized in the trichlinic crystal structure, with the space group pī and cell dimensions of a =10.894(3), b = 10.853(4) and c = 12.947(5)å as well as the angle β = 111.95 (3)°.interestingly, thiscompound is the first example of 5-coordinated copper(ii) complex with dimethyl-sulfoxide ligandin a square pyramid structure.