Mixed-ligand complexes of zinc(II) and cadmium(II) diethyldithiocarbamates with 2,2′-bipyridyl and 4,4′-bipyridyl: Synthesis,structure, and thermal properties

We have synthesized novel mired-ligand complexes of zinc(I1) and cadmium(ZI) diethyldithiocarbamates ZnL₂(2,2'-Bipy) (1), Zn₂L₄(4,4'-Bipy) (2), and CdL₂(4,4'-Bipy) (3), where L = (C₂H₅NCS₂^–. An X-ray structural study of zinc compleres 1 and 2 has been cam'ed out. The saucture of complex 1 is characterized by monomeric molecules of symmeby 2. In the crystal structure of complex 2, there are fwo independent binuclear molecules of the same point symmetry 2. It is shown that not only the mononuclear mixed-ligand complaes ML₂ with Phen and 2,2'-Bipy (M = Zn, Cd) but also the binuclear Zn₂L₄(4,4'-Bipy) complex are volatile.Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences. Translated fromZhurnal Strukturnoi Khimii, Vol. 34, No. 5, pp. 157–166, September–October, 1993.Translated by T. Yudanova