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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (15): 1465-1468. 上一篇    

研究简报

双-单齿芳香酰胺型配体桥联La3＋一维配位聚合物的合成与晶体结构

蔡正洪*1，唐瑜2，谭民裕2，郁开北3   

  1. (1西南交通大学药学院 峨眉 614202)
    (2兰州大学化学化工学院 兰州 730000)
    (3中国科学院成都分院分析测试中心 成都 610041)
  • 投稿日期:2004-11-03 修回日期:2005-04-04 发布日期:2010-12-10
  • 通讯作者: 蔡正洪

Synthesis and Crystal Structure of 1D Coordination Polymer of La3＋ Bridged by an Aryl Amide Type Bis-monodentate Ligand

CAI Zheng-Hong*1, TANG Yu2, TAN Min-Yu2, YU Kai-Bei3   

  1. (1 School of Pharmacy, Southwest Jiaotong University, E'mei 614202)
    (2 College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000)
    (3 Analysis Center, Chengdu Branch of Chinese Academy of Sciences, Chengdu 610041)
  • Received:2004-11-03 Revised:2005-04-04 Published:2010-12-10
  • Contact: CAI Zheng-Hong

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通过硝酸镧和双-单齿芳香酰胺型配体L {L＝1,4-双[(2'-苄胺甲酰基苯氧基)-甲基]苯}之间的反应得到了配位聚合物{[La(NO3)3]2•L3}n, 并用X射线单晶衍射测定了配合物的晶体结构. 配合物为三斜晶系, P1空间群, 晶胞参数a＝1.1298(2) nm, b＝1.2689(1) nm, c＝2.1030(3) nm, α＝81.189(9)°, β＝80.95(1)°, γ＝65.832(9)°, V＝2.7032(6) nm3, Z＝2, R＝0.0267, wR＝0.0679, La3＋为9配位, 呈变形的三帽三角棱柱配位构型. 配合物通过配体的桥联作用形成一维环链相间的配位聚合结构, 由于相邻链间不存在氢键和π-π堆积作用, 所以配合物是以单链形式堆积排列.

关键词: 双-单齿, 芳香酰胺, 配位聚合物, 合成, 晶体结构

Coordination polymer {[La(NO3)3]2•L3}n {L＝1,4-bis{[2'-(benzylaminocarbonyl)-phenoxyl]-methyl}benzene has been synthesized by the reaction of an aryl amide type bis-monodentate ligand and La(NO3)3•6H2O, and the crystal structure of this complex has been characterized by X-ray diffraction analysis．The crystal structure belongs to triclinic system with space group P1, a＝1.1298(2) nm, b＝1.2689(1) nm, c＝2.1030(3) nm, α＝81.189(9)°, β＝80.95(1)°, γ＝65.832(9)°, V＝2.7032(6) nm3, Z＝2, R＝0.0267, wR＝0.0679. The La3＋ took nine-coordinate in a distorted tricapped trigonal prism. The complex formed 1D coordination polymer consisting of rings connected by chains alternately by the bridging of ligand. These 1D polymers were packed in an independent style for the lack of inter chain hydrogen bond and π-π intreaction．

Key words: bis-monodentate, aryl amide, coordination polymer, synthesis, crystal structure