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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (21): 2401-2404. 上一篇    下一篇

研究论文

二维配位聚合物[Zn(PDC)(phen)]n的合成、晶体结构及荧光性质

李亚娟，宋会花*，王继业，韩占刚   

  1. (河北师范大学化学与材料科学学院 石家庄 050016)
  • 投稿日期:2007-04-25 修回日期:2007-05-28 发布日期:2007-11-14
  • 通讯作者: 宋会花

Synthesis, Crystal Structure and Luminescent Properties of Two-dimensional Coordination Polymer [Zn(PDC)(phen)]n

LI Ya-Juan; SONG Hui-Hua*; WANG Ji-Ye; HAN Zhan-Gang   

  1. (College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050016)
  • Received:2007-04-25 Revised:2007-05-28 Published:2007-11-14
  • Contact: SONG Hui-Hua

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合成了锌(II)与3,4-吡啶二羧酸和1,10-邻菲啰啉形成的配位聚合物[Zn(PDC)(phen)]n (1) (H2PDC＝3,4-吡啶二羧酸, phen＝1,10-邻菲啰啉), 对其进行了元素分析、红外光谱和X射线单晶衍射表征, 测定了晶体结构. 该聚合物属单斜晶系, P2(1)/n空间群, a＝0.77136 nm, b＝1.9757(4) nm, c＝1.0680(2) nm, β＝95.36(3)°, V＝1.6205(6) nm3, Z＝4, Dc＝1.683 Mg/m3, Mr＝410.68, F(000)＝832, μ＝1.55 mm－1, 最终偏离因子R1＝0.0608, wR2＝0.0967. 该化合物中Zn原子与来自两个PDC的三个羧基氧原子, 另外一个PDC的吡啶氮原子, 以及phen的两个氮原子配位, 形成的ZnN3O3八面体通过PDC桥联形成二维层状网络结构. 此外还研究了该聚合物的热性质和荧光性质.

关键词: 配位聚合物, 水热合成, 晶体结构, 荧光性质

Zinc(II) pyridine-3,4-dicarboxylate polymeric complex with phen, [Zn(PDC)(phen)]n (H2PDC＝pyridine-3,4-dicarboxylic acid, phen＝1,10-phenthroline) has been synthesized and characterized by means of elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P2(1)/n with a＝0.77136 nm, b＝1.9757(4) nm, c＝1.0680(2) nm, β＝95.36(3)°, V＝1.6205(6) nm3, Z＝4, Dc＝1.683 Mg/m3, Mr＝410.68, F(000)＝832, μ＝1.55 mm－1 and R1＝0.0608, wR2＝0.0967. The X-ray analysis revealed that the central Zn atom is octahedrally coordinated by three O atoms from two PDC ligands, one N atom from another PDC and two N atoms from phen. The resulting ZnN3O3 octahedron is bridged by PDC, forming a 2D layer net structure. In addition, the thermal and luminescent properties of the title compound were also studied.

Key words: coordination polymer, hydrothermal synthesis, crystal structure, luminescent property