Abstract

The [Ni(S,N) 2] complexes (S,N = 1,3-thiazolidine-2-thionato, tzdt, 1,3-thiazoline-2-thionato, tzt, and 2-mercaptobenzothiazolato, mbt) have been obtained in good yield by direct electrochemical oxidation of nickel in the presence of the corresponding ligand. The [Ni(tzdt) 2] and [Ni(mbt) 2] derivatives react with nitrogen donor bases to give the adducts [Ni(S,N) 2(L) 2] (L = substituted pyridines and primary amines) and [Ni(S,N) 2L] (L = bpy, phen, dmp) also obtained by direct electrochemical synthesis. A crystal structure analysis shows that in [Ni(mbt) 2(dmp)] the hexacoordinated environment of the nickel atom is formed by two bidentate mbt ligands and one dmp ligand.

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