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铜与苯并-1,3-噻唑-2-硫酮配合物的电化学合成与晶体结构

Electrochemical Synthesis and Crystal Structure of Copper (Ⅰ) Complex with Benzo-1,3-thiozoline-2-thione

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【作者】 顾建胜马美华沈理明郁开北

【Author】 GU Jian - Sheng MA Mei - Hua SHEN Li - Ming YU Kai - Bei(Department of Chemistry, Suzhou University, Suzhou, 215006) ( Chengdu Branch, The Chinese Academy of Sciences, Chengdu, 610041)

【机构】 苏州大学理学院化学化工系江苏教育学院化学系中国科学院成都分院 苏州215006南京210017苏州215006成都610041

【摘要】 在苯并-1,3-噻唑-2-硫酮(Hbztzt,HL)和三苯膦(PPh3)的乙腈溶液中,用牺牲铜阳极的电化学方法一步合成了Cu(Ⅰ)的相应配合物,电化学效率(Ef)、元素分析和IR光谱表明:产物为同时含有硫醇阴离子(L)和中性硫酮(HL)两种配体及三苯膦的多元混合配体配合物[Cu(L)(HL)(PPh32].配合物在CS2中重结晶得淡黄色晶体,X射线单晶衍射法测定其结构为[Cu(L)(HL)(PPh32]·CS2.晶体属三斜晶系,空间群:P1.a=1.0159(2)nm,b=1.4200(2)nm,c=1.8072(3)nm,α=78.12(1)°,β=86.56(1)°,γ=67.65(1)°,Z=2,V=2.3929(6)nm3,Dc=1.41g·cm-3,R=0.0348,Rw=0.0316.Cu原子以变形四面体与两个PPh3的两个P原子、被氢键(N—H…N)平均化的硫醇阴离子(L)和中性硫酮分子(HL)上的两个环外S原子配位(两个Cu—S键的键长为0.2372nm和0.2410nm).

【Abstract】 Complex [Cu(bztzt) (Hbztzt) (PPh3 )2 ] was synthesized by electrochemical oxidation of copper in an acetonitrile solution of benzo -1,3- thiozoline - 2 - thione (Hbztzt) and triphenylphosphine(PPh3 ) , and characterized by elemental analysis and IR spectrum. The complex was dissolved in CS2, from which yellow crystal formed. The structure of the crystal was shown to be [ Cu( bztzt) ( Hbztzt) ( PPh3 )2 ]·CS2 by an X - ray structure determination. Crystal is triclinic, space group P1 ,with a = 1.0159(2)nm, b = 1.4200(2)nm, c = 1.8072(3)nm, α =78.12(1)°, β = 86.56(1)°, γ = 67.65(1)°, Z = 2. The structure was refined to R = 0.0348 and ,RW =0.0316 for 4869 reflections. The copper atom is pseudotetrahedrally coordinated by two P atoms from PPh3 and two exocyclic S atoms from bztzt- and Hbztzt ligands respectively. The ligands of bztzt-and Hbztzt were "averaged" by the presence of hydrogen bond (N-H…N) between them. The bond distances of two Cu-S are 0.2372nm and 0.2410nm.

  • 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,2000年10期
  • 【分类号】O641.4
  • 【被引频次】5
  • 【下载频次】113
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