Construction of lanthanide/zinc coordination polymers: In situ ligand reactions and templated synthesis

Two lanthanide/zinc coordination polymers, [Zn2Pr(H2O)4(OH)(bipy)(IMDC)2]·bipy·2H2O (1), and [Pr(phen)(HDTIM)(NO3)(H2O)]·H2O (2), based on 2H-imidazole-4,5-dicarboxylic acid (H3IMDC) and 4,5-di(1H-tetrazol-5-yl)-2H-imidazole (H3DTIM) ligands have been synthesized. Both ligands were in situ generated from the same precursor, 2H-imidazole-4,5-dicarbonitrile (HIMDN), by control of the reaction condition.