A convenient synthetic route to half-sandwich rhodium(III) complexes of the tripodal ligand tris(3,5-dimethylpyrazolyl)methane

摘要

The synthesis of the complex [RhCl(3)tpm*], 1, ( tpm* = tris(3,5-dimethylpyrazolyl) methane) is reported. Complex 1 is a suitable starting material for the synthesis of heteroleptic half-sandwich complexes: it has been used to synthesise the complexes; [RhCl(bpy) tpm*][(PF6)(2)] [2][(PF6)(2)] (bpy = 2,2'-bipyridyl), [RhCl(phen) tpm*][(PF6)(2)] [3][(PF6)(2)]. (phen = 1,10-phenanthroline), [RhCl2(py) tpm*][(PF6)], [4][(PF6)(2)], ( py = pyridine), and[ RhCl(py)(2)tpm*][(PF6)(2)], [5][(PF6)(2)]. The structures of [2][(PF6)(2)], [3][(PF6)(2)], [4][( PF6)(2)], and [5][(PF6)(2)] have been determined by X-ray crystallography. The electrochemical and photophysical properties of these new compounds have also been investigated.