ligand adducts of bis(acetylacetonato) copper(ii), bis(3-chloroacetylacetonato) copper(ii) with 4,4’-bipyridine, and propylene spacered bis-viologen

Bis(acetylacetonato) copper (ii): cua, bis(3-chloroacetylacetonato) copper: cua-cl, and their adducts with 4,4`-bipyridine are synthesized. these copper (ii) complexes are characterized by mass, ft-ir, uv-visible, and xrd spectrometries. the interaction of copper (ii) complexes: cua and cua-cl with 4,4`-bipyridine, bpy, and bis-viologen, v22+.2pf6- are studied in solution by electronic absorption spectroscopy. the solutions of adducts happened between cua and cua-cl with v22+.2pf6-are reduced by activated zn powder to afford viologen-based switches within adducts structures.