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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (22): 2089-2092. 上一篇    下一篇

研究论文

三维配位聚合物[Zn(HCO2)2(4,4'-bipy)]∞的合成、晶体结构及性质研究

张灯青1，张文华1，陈金香1，任志刚1，张勇1，郎建平*,1,2   

  1. (1苏州大学化学化工学院 江苏省有机合成重点实验室 苏州215006)
    (2中国科学院福建物质结构研究所 结构化学国家重点实验室 福州 350002)
  • 投稿日期:2005-04-25 修回日期:2005-08-05 发布日期:2010-12-10
  • 通讯作者: 郎建平

Synthesis, Crystal Structure and Properties of a 3D Coordination Polymer [Zn(HCO2)2(4,4'-bipy)]∞

ZHANG Deng-Qing1, ZHANG Wen-Hua1, CHEN Jin-Xiang1, REN Zhi-Gang1, ZHANG Yong1, LANG Jian-Ping*,1,2   

  1. (1 Key Laboratory of Organic Synthesis of Jiangsu Province, School of Chemistry and Chemical Engineering,
    Suzhou University, Suzhou 215006)
    (2 State Key Laboratory of Structural Chemistry, Fujian Institute of Structure on Matter,
    Chinese Academy of Sciences, Fuzhou 350002)
  • Received:2005-04-25 Revised:2005-08-05 Published:2010-12-10
  • Contact: LANG Jian-Ping

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以ZnO, HCO2H及4,4'-bipy (摩尔比1∶3∶1.25)溶于H2O和DMF (体积比13∶1), 并在60 ℃反应, 合成了标题化合物[Zn(HCO2)2(4,4'-bipy)]∞, 对其进行了元素分析、红外光谱等表征, 并测定了晶体结构. 该化合物晶体属四方晶系, P43212空间群, a＝b＝0.79675(5) nm, c＝1.7627(2) nm, V＝1.1190(3) nm3, Z＝4, Dc＝1.850 g/cm3, Mr＝311.60, F(000)＝632, μ＝22.07 cm－1, 最终偏离因子R1＝0.0183和wR2＝0.0483. 该化合物中Zn原子和两个4,4'-bipy的N原子和四个甲酸根的O原子配位, 形成的ZnN2O4八面体通过4,4'-bipy和甲酸根桥联, 组成一种新颖的3D网络结构. 同时, 研究了该化合物的热性质和荧光性质

关键词: 锌配合物, 合成, 荧光, 晶体结构

Reactions of ZnO, HCO2H, and 4,4'-bipy (molar ratio＝1∶3∶1.25) in H2O/DMF (volume ratio＝13∶1) at 60 ℃ afforded [Zn(HCO2)2(4,4'-bipy)]∞ with 75% yield. It crystallizes in the tetragonal symmetry with space group P43212 and lattice parameters: a＝b＝0.79675(5) nm, c＝1.7627(2) nm, V＝1.1190(3) nm3, Z＝4, Dc＝1.850 g/cm3, Mr＝311.60, F(000)＝632, μ＝22.07 cm－1, R1＝0.0183, and wR2＝0.0483. The X-ray analysis reveals that the zinc ion is octahedrally coordinated by two N atoms from one 4,4'-bipy ligand and four O atoms from four anions. The ZnN2O4 octahedra are connected via two bridging 4,4'-bipy ligands and four bridging anions, forming an interesting 3D scaffold structure. The thermal and photoluminescent properties of the title compound were also studied.

Key words: zinc complex, synthesis, luminescence, crystal structure