Redox induced colour changes between red-violet and blue in hetero-metal complexes of the type [CoII(4′-ferrocenyl-2,2′;6′2′′-terpyridine)2]X2 (X = counter anion)

Abstract

Cobalt complexes incorporating ferrocene–terpyridine ligands show a reversible color change in response to redox reactions involving the cobalt centers.