Abstract <p>Two coordination polymers (CPs) {[Zn<sub>2</sub>(HL)(btc)(H<sub>2</sub>O)<sub>2</sub>].4(H<sub>2</sub>O)}<sub><i>n</i></sub> (<b>1</b>) and {[Zn(H<sub>2</sub>L)(btec)<sub>0.5</sub>](H<sub>2</sub>O)}<sub><i>n</i></sub> (<b>2</b>) have been synthesized under hydrothermal conditions by using 3-(1H-pyrazol-4-yl)-5-(pyridin-4-yl)-1,2,4-triazole (H<sub>2</sub>L), 1,3,5-benzenetricarboxylic acid (H<sub>3</sub>btc) and 1,2,4,5-benzenetetracarboxylic acid (H<sub>4</sub>btec) as reagents along with zinc acetate. Compounds <b>1</b> and <b>2</b> have been characterized by elemental analysis, single crystal X-ray diffraction, and IR spectroscopy. Compound <b>1</b> shows a corrugated layered structure, and a 3D supramolecular architecture is further assembled in <b>1</b> via hydrogen-bonding contacts. Compound <b>2</b> exhibits a 3D framework structure. The thermal behavior and the luminescence properties of the two compounds were studied.</p>

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Crystal Structures and Luminescence Properties of Two Zn(II) Coordination Polymers Based on 3-(1H-Pyrazol-4-yl)-5-(pyridin-2-yl)-1,2,4-triazole and Polycarboxylic Acid Ligands

  • Yu-Fang Wang,
  • Yi-Kun Wang,
  • Xi Luo,
  • Tian-Yu Zhao,
  • Li-Ya Wang

摘要

Abstract

Two coordination polymers (CPs) {[Zn2(HL)(btc)(H2O)2].4(H2O)}n (1) and {[Zn(H2L)(btec)0.5](H2O)}n (2) have been synthesized under hydrothermal conditions by using 3-(1H-pyrazol-4-yl)-5-(pyridin-4-yl)-1,2,4-triazole (H2L), 1,3,5-benzenetricarboxylic acid (H3btc) and 1,2,4,5-benzenetetracarboxylic acid (H4btec) as reagents along with zinc acetate. Compounds 1 and 2 have been characterized by elemental analysis, single crystal X-ray diffraction, and IR spectroscopy. Compound 1 shows a corrugated layered structure, and a 3D supramolecular architecture is further assembled in 1 via hydrogen-bonding contacts. Compound 2 exhibits a 3D framework structure. The thermal behavior and the luminescence properties of the two compounds were studied.