Abstract
The nitro-gen-sulfur Schiff base proligand S-n-octyl 3-(1-phenyl-ethyl-idene)di-thio-carbazate, C17H26N2S2 (HL), was prepared by reaction of S-octyl di-thio-carbamate with aceto-phenone. Treatment of HL with nickel acetate yielded the complex bis-[S-n-octyl 3-(1-phenyl-ethyl-idene)di-thio-carbazato]nickel(II), [Ni(C17H25N2S2)2] (NiL 2), which was shown to adopt a tetra-hedrally distorted cis-square-planar coordination geometry, with the NiSN planes of the two ligands forming a dihedral angle of 21.66 (6)°. Changes in the geometry of the L ligand upon chelation of Ni2+ are described, involving a ca 180° rotation around the N(azomethine)-C(thiol-ate) bond.
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