Novel thiosalamo ligand as a remarkably stable N2S2 salen-type chelate and synthesis of a nickel(II) complex.
Novel N2S2 tetradentate chelate ligand H2tsalamo, which contains both thiol groups and C=N moieties, was synthesized as a remarkably stable compound. Complexation between H2tsalamo and nickel(II) acetate gave a square planar complex [Ni(tsalamo)] as dark brown crystals, whose structure was determined by X-ray crystallography. In contrast, the corresponding N2O2 ligands, salamo and 3-MeOsalamo, gave trinuclear and mononuclear complexes, respectively, in which all the nickel atoms have octahedral geometry.
Akine
Shigehisa
S
Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
Nabeshima
Tatsuya
T