Synthesis, characterization, X-ray structure, spectroscopic and electrochemical studies of copper and zinc complexes with two new polydentate ligands.

Highlights: [•] Two ligands form bi- and tri-nuclear complexes. [•] All complexes are alkoxide bridge compounds. [•] Cu complexes with Schiff base and its reduced form have different redox potentials. [•] The hydroxyl and phenol oxygens participate as anionic oxygens in complexation. [Copyright &y& Elsevier]