Aromatic Multicarboxylate Ligands Tuned One-and Three-dimensional Zn(Ⅱ) Coordination Polymers Based on 3-(1H-pyrazol-4-yl)-5-(pyridin-3-yl)-1,2,4-triazole

摘要

Two aromatic multicarboxylate ligands tuned Zn(Ⅱ) coordination polymers,namely,{[Zn0.5(H2L)(tp)0.5(H2O)]H2O}n (1) and {[Zn2(HL)(btc)(H2O)]H2O}n (2) (H2L =3-(1H-pyrazol-4-yl)-5-(pyridin-3-yl)-1,2,4-triazole,H2tp =terephthalic acid;H3btc =1,3,5-benzenetricarboxylic) have been synthesized.Their structures were characterized by single-crystal X-ray diffraction analysis,elemental analyses and infrared spectra.Compound 1 possesses a one-dimensional chain structure and is finally extended into a three-dimensional supramolecular architecture though hydrogen bonding interactions.Compound 2 shows a three-dimensional framework.Meanwhile,compounds 1 and 2 exhibit luminescent emission in the solid,and can be investigated as potential luminescent materials.