Rhenium(III) and technetium(III) complexes with 2-mercapto-1,3-azole ligands and X-ray crystal structures

Reactions of labile precursors [MCl3(PPh3)2(CH3CN)] (M = Re, Tc) with imidazole-2-thiol ligands give new trigonal bipyramidal complexes, while with benzothiazole-2-thiol and benzoxazole-2-thiol octahedral chelate compounds are obtained. Crystal structures of these metal(III) complexes are also discussed.