Synthesis and Characterization of Two New Coordination Polymers Constructed from Azobenzene-4, 4′-Dicarboxylic Acid with Zinc (Ii) and Cd (Ii) 2, 2′-Bipyridine

Abstract

Two transition metal coordination polymers [Zn(4,4′-ADA)(bpy)]n (1) and [Cd(4,4′-ADA)(bpy)(H2O)2]n (2) have been assembled from azobenzene-4,4′- dicarboxylic acid (H2ADA) with the help of 2,2′-bipyridine (bpy) ligand. The different molecular structures for complexes 1 and 2 formed from the same ligand (H2ADA) reveals the fact that organic linkers display different coordination preferences at different metal ions.