I. Castillo, Brenda N Sánchez-Eguía, Paulina R. Martínez-Alanis
Jan 8, 2015
Citations
0
Influential Citations
5
Citations
Journal
Polyhedron
Abstract
Abstract Mixed N,S tripodal ligands bis(2,4-dimethylphenylthioethyl)(2-methylbenzimidazolyl)amine L 1 , bis(2,4-dimethylphenylthioethyl)(1-methyl-2-methylbenzimidazolyl)amine L 2 , and bis(1-methyl-2-methylbenzimidazolyl)(2-methylthioethyl)amine L 3 were employed to prepare the corresponding copper complexes. L 1 and L 2 associate weakly with Cu 2+ , while the reaction of CuI with L 1 affords [ L 1 CuI]. This was characterized in the solid state by the chelating tridentate coordination mode of L 1 , with a free thioether, and a terminal iodide, in contrast with the commonly observed Cu–I–Cu bridges. For L 3 , Cu + and Cu 2+ complexes are accessible as [ L 3 Cu]PF 6 , and the crystallographically characterized [ L 3 CuCl]Cl. The latter has a square pyramidal coordination around the Cu 2+ ion, with the thioether as an axial ligand that remains coordinated in solution, as evidenced by UV–Vis spectroscopy.