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化学学报
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化学学报 ›› 2000, Vol. 58 ›› Issue (12): 1596-1601. 上一篇    下一篇

研究论文

铜(Ⅱ)与反式丁烯二酸根和2,2'-联吡啶配合物的研究

王尧宇;王欣;史启祯;高忆慈   

  1. 西北大学化学系.西安(710069);兰州大学化学系.兰州(730000)
  • 发布日期:2000-12-15

Studies on copper(Ⅱ) fumarate complex with 2,2'-bipyridine

Wang Yaoyu;Wang Xin;Shi Qizhen;Gao Yici   

  1. Northwest Univ, Dept Chem.Xian(710069);Lanzhou Univ, Dept Chem. Lanzhou(730000)
  • Published:2000-12-15

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481

被引次数

17

合成了铜(Ⅱ)与反式丁烯二酸根和2,2'-联吡啶形成的配合物，并进行了元素分析、红外光谱、电子反射光谱和变温磁化率等研究，确定其组成为[Cu~2(fum)(bipy)~4][fum]·12H~2O，其中bipy=2,2'-联吡啶，fum=反式丁烯二酸根。测定了配合物的晶体结构，[Cu~2(fum)(bipy)~4][fum]·12H~2O晶体属三斜晶系，P1(#2)群；晶胞参数：a=1.0697(2)nm，b=1.2820(2)nm，c=1.0470(3)nm，α=101.88(2)°，β=101.93(2)°，γ=79.41(1)°；Z=1，最终偏离因子R=0.033。分子为反式丁烯二酸根桥联两个Cu(Ⅱ)单元的双核结构，每个Cu(Ⅱ)具有畸变的三角双锥配位环境。变温磁化率研究表明，配合物中存在弱的铁磁性偶合作用。

关键词: 铜络合物, 丁烯二酸P, 联吡啶P, 元素分析, 红外分光光度法, 晶体结构

Copper(Ⅱ) fumarate complex with 2,2'-bipyridine, [Cu~2(fum)(bipy)~4] [fum]·12H~2O, has been synthesized and characterized by elemental analyses, IR, electronic reflectance spectra and magnetic studies. The single crystal X-ray diffraction study shows that the complex is triclinic, with space group P1(#2), a=1.0697(2) nm, b=1.2820(2) nm, c=1.0470(3) nm, α=101.88(2)°, β=101.93(2)°, γ=79.41(1)°, Z=1, and R=0.033. Two copper(Ⅱ) atoms are bridged by a fumarate group, with each copper(Ⅱ) atom coordinated with two 2,2'-bipyridine molecules, forming a distorted trigonal bipyramidal configuration. The alternating temperature magnetic susceptibility study suggest that there exist weak ferromagnetic interaction between two copper(Ⅱ) atoms.

Key words: COPPER COMPLEX, BUTENEDIOIC ACID P, BIPYRIDINE P, ELEMENTAL ANALYSIS, INFRARED SPECTROPHOTOMETRY, CRYSTAL STRUCTURE

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