Syntheses, structural diversities and photocatalytic properties of three nickel(II) coordination polymers based semi-bis(benzimidazole) and aromatic dicarboxylic acid ligands

Three Ni(II) coordination polymers based on semi-rigidity 1,4-bis(5,6-dimethylbenzimidazol-1-yl)-2-butylene ligand and dicarboxylic acids ligands were successfully synthesized and characterized. 1, 2 and 3 exhibit excellent photocatalysts for the degradation of methylene blue under UV irradiation.