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化学学报
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化学学报 ›› 2002, Vol. 60 ›› Issue (2): 293-297. 上一篇    下一篇

研究论文

{Cu2(tacn)2[μ-(MeN)2C2O2]}[(MeNH)2C2O2](ClO4)2的合 成、结构及性质研究

谢承志;阎世平;李春晖;程鹏;廖代正;姜宗慧   

  1. 南开大学化学系.天津(300071);北京大学稀土材料化学及应用国家重点实验室. 北京
  • 发布日期:2002-02-15

Synthesis, structure and properties of {Cu2(tacn)2[μ-(MeN)2C2O2]}[ (MeNH)2C2O2](ClO4)2

Xie Chengzhi;Yan Shiping;Li Chunhui;Cheng Peng;Liao Daizheng;Jiang Zonghui   

  1. Nankai Univ, Dept Chem.Tianjin(300071);.
  • Published:2002-02-15

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440

被引次数

8

合成了双核配合物{Cu2(tacn)2[μ-(MeN)2C2O2]}[(MeNH)2C2O2](ClO4)2(tacn=1,4,7-三氮杂环壬烷)。通过元素分析、红外光谱、ESR谱和电子光谱对配合物进行表征，并利用单晶X射线衍射法测定其结构，晶体属单斜晶系，空间群为P21/n,a=0.72572(16)nm,b=2.5616(6)nm,c=0.9128(2)nm,β=90.096(5)°，V=1.6969(7)nm^3,Dcald=1.590Mg.m^-^3,Z=2,F(000)=840,R1=0.0529,wR2=0.1341,Gof=1.028,△ρ=632～390e.nm^-^3。晶体由对称的双核Cu单元、中性草酰胺分子及高氯酸根堆积而成。两个铜原子配位数为五，处于变形四方锥的配位环境中。在5～300K范围内磁性测定表明：配合物中存在反铁磁偶合相互作用，经理论拟合：g=1.98,J=-219cm^-^1。

关键词: 晶体结构, 环壬烷P, 双核络合物, 铜络合物, 大环化合物, 反铁磁性, 氮杂环化合物

A binuclear copper(Ⅱ) compound, {Cu2(tacn)2[μ-(MeN)2C2O2]}[(MeNH) 2C2O2](ClO4)2 (tacn=1, 4, 7-triazacyclononane) has been synthesize dand characterized by IR, elemental analysis, ESR, electronic spctrum and X-ray diffraction. Crystal data: monoclinic, space group P21/n, a=0.72572(16) nm, b=2.5616(6) nm, c=0.9128(2) nm, β=90.096(5) °，V=1.6969(7) nm^3, Dcald=1.590 Mg.m^-^3, Z=2, F(000)=840, R1=0.0529, wR2=0.1341, Gof=1.028, △ρ=632～390 e.nm^-^3. The complex is packed by one centrosymmetry binuclear copper unit, neutral oxalamide molecule and ClO^-~4 anion. In the molecule of the complex, two Cu(Ⅱ) ions are all five coordinte with distorted squarepyramid configuration. The magnetic susceptibilities (5～300 K) indicated that the binuclear (Ⅱ) cores wer antiferromanetic coupling (J=-219 cm^-^1, g=1.98).

Key words: CRYSTAL STRUCTURE, CYCLONONANE P, DINUCLEAR COMPLEX, COPPER COMPLEX, MACROCYCLIC COMPOUNDS, ANTIFERROMAGNETISM, NITROGEN HETEROCYCLICS

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