In situ hydrothermal syntheses, crystal structures and luminescent properties of two novel zinc(II) coordination polymers based on tetrapyridyl ligand

Two novel Zn(II) coordination polymers have been in situ hydrothermally synthesized by the reaction of zinc chloride with maleic acid and 4′-(4-pyridyl)-terpyridine mixed ligands. Interestingly, maleic acid converted into fumaric acid and malic acid by the in situ reactions in 1 and 2, respectively. Complex 1 is a 1D infinite chain structure, and complex 2 is a 3D network structure.