Copper and rhenium complexes of a bis(aminoethanethiol) ligand

摘要

Bis(aminoethanethiol) (BAT) ligands, containing the N_2S_2 donor atom set, react with transition metal ions to form complexes with a variety of coordination geometries. The reaction of CuCl_2 with the ligand. BAT-TECH, results in reduction of some of the copper (II) centers to copper(I) and formation of a mixed valent pentamer. The reaction of a (Re~vO)~(3+) reagent with the ligand results in two constitutional isomers, both with distorted square pyramidal coordination geometry. One molecule (A) has an amine group #alpha# to the cyclohexyl substituent and an amide group in the remote position. The other molecule (B) has amide group #alpha# to the cyclohexyl group and the amine group in the remote position. The two species apparently persist in CH_3CN solution at room temperature.