Using imdazole-2-carboxylic and biimdazole-4,4′-dicarboxylic acid to construct Keggin-based mono-nuclear Ag+ subunit and double Cl-capped tri-nuclear Cu+ clusters

Three Keggin-based metal-organic complexes have been constructed from two organic ligands 1H-Imdazole-2-carboxylic acid (HL1) and 1H,1′H-Biimdazole-4,4′-dicarboxylic acid (HL2). The HL2 ligand was firstly used in the POMs field. The electrochemical behavior of 2, 3 and photocatalytic activities of the title complexes have been studied.79