Dihydrobis(methimazolyl)borate and methimazolyl complexes of titanium

Abstract

The reaction kinetics of HnB(mt)4-n salts with high oxidation state titanium complexes of Dihydrobys(methimazolyl) borate and methimazolyl complexes of titanium are analyzed. The synthetic hurdles in the chemistry of niobium(v) and tantalum(v) may be overcome by the inclusion of a π-basic imido co-ligand to reduce the electrophillicity of the metal centre, which allow the isolation of complexes. The two H2B(mt)2 ligands adopt different modes of coordination within the same molecule to provide a collar of sulfur π donors. The compound is the binuclear bis(imido) complex, which apparently arises from the degradation of the H 2B(mt)2 pro-ligand salt. Show more