Coordination modes of 2-mercapto-1,3-benzothiazolate in gallium and indium complexes

<p>2-Mercapto-1,3-benzothiazole (mbztH) may act as a chelating or bridging ligand. In this study, reactions of mbztH with Me<sub>3</sub>Ga and Me<sub>3</sub>In were examined. The products were characterized by NMR spectroscopy, elemental analyses, melting point, and molecular weight determinations. Formation of mononuclear chelating complexes Me<sub>2</sub>M(mbzt) (M = Ga, In) was observed in solutions. Crystallization of Me<sub>2</sub>M(mbzt) yielded uncommon non-symmetrical dinuclear complexes Me<sub>4</sub>M<sub>2</sub>(mbzt)<sub>2</sub>, in which one metal is bonded to two sulfurs and the other to two nitrogens.</p>