Syntheses, structures and characterizations of three rare earth metal center coordination polymers

Abstract:

Three coordination polymers ([Pr(TZI)(H2O)5]•5H2O (1), [Sm(TZI)(H2O)5]•5H2O (2) and [Nd(TZI)(H2O)5]•2H2O (3)) have been hydro/solvothermally synthesized by involving 5-tetrazolylisophthalic acid (H3TZI) as ligand and rare earth metal ions (Pr3+、Sm3+、Nd3+) as metal centers. Crystal structures characterized by powder X-ray diffraction (XRD) and X-ray single crystal diffraction showed that the three compounds have one-dimensional chain structure, and structure differences among the complexes have been discussed in detail. Meanwhile, the thermal stabilities of them are researched.