Structural Diversity and Luminescent Properties of Two Zinc(Ⅱ) Polymers Based on Semirigid N-heterocyclic Ligand

摘要

By varying the spacer angles of phenylenediacetic acid, two novel Zn(II) coordination polymers based on semirigid N-heterocyclic ligand 1,4-bis(2-ethylbenzimidazol-1-ylmethyl) benzene, [Zn(beb)0.5(m-phda)]n(1) and {[Zn(beb)(p-phda)]·2H2O}n(2), were synthesized and fully structurally characterized. Polymer 1 exhibits a 2D grid-layer with a 44 topology. Polymer 2 shows a 2D layer with rare meso-helix. In addition, the thermal stability and photoluminescence properties of polymers 1 and 2 have also been investigated.