Synthesis and Crystal Structure of Chlorido-Bridged Binuclear Copper(I) Complexes with Carbodithioate-Type Ligands

Abstract

The CuCl binuclear complexes were synthesized with phenyl-1H-pyrazole-1-carbodithioate (L1) and phenyl-3-methyl-1H-pyrazole-1-carbodithioate (L2) ligands. The complexes were isolated as crystalline material in a reasonable quantity. The complexes were crystallized in acetonitrile (MeCN) and characterized for their single crystal, using X-ray diffraction. The two units with the general formula LCuCl are bridged together via chlorido ligands, affording (LCuCl)2-type complexes. The complexes, [Cu2(μ-Cl)2(L1)2] 1 and [Cu2(μ-Cl)2(L2)2] 2 are monoclinic and triclinic with space group P21/n and Pi, respectively. The crystal packing is stabilized by C1(p)⋯C(p) and S⋯C(p) interactions extended in 2D fashion in complex 1, while complex 2 is stabilized by C(p)⋯S interactions extended in a 1D fashion. Structural features and secondary interactions present in both complexes discussed in this article.