4′-(o-Toluyl)-2,2′ : 6′,2′′-terpyridine: synthesis, bromination, complexation, and X-ray crystallographic characterization

The ligands 4′-(o-toluyl)-2,2′ : 6′,2″-terpyridine and 4′-[2-(bromomethyl)phenyl]-2,2′ : 6′,2″-terpyridine were synthesized. X-ray crystallographic studies have been performed on complexes that were prepared using these ligands. In one case, a halogen exchange reaction occurs, resulting in a dinuclear copper complex in which the bromine in the terpyridine derivative is replaced by chlorine and is ultimately found as a disordered bridging bromide.