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化学学报
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化学学报 ›› 1990, Vol. 48 ›› Issue (4): 360-364. 上一篇    下一篇

研究论文

N,N'-双水杨酰代乙二胺合铜(II)酸根和N,N'-1,2-双水杨酰代丙二胺合铜(II)酸根的Cu(II)-Co(II)双核酸合物的合成和磁性

廖代正;赵倩华;王耕霖   

  1. 南开大学化学系
  • 发布日期:1990-04-15

Synthesis and magnetism of copper (II)-cobalt(II) binuclear complexes with N,N-ethylenedisalicylamidatocuprate(II) and N,N'-1,2-propylenedisalicylamidatocuprate(II)

LIAO DAIZHENG;ZHAO QIANHUA;WANG GENGLIN   

  • Published:1990-04-15

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本文合成了两个新型双核配合物, [Cu(Samen)Co(L)2]和[Cu(Sampn)Co(L)2], Samen^4^-表示N,N'-双水杨酰代乙二胺根阴离子,Sampn^4^-表示N,N'-1,2-双水杨酰代丙二胺根阴离子, L表示5-硝基-1,10-菲咯啉(NO2-Phen)。经元素分析, IR和电子光谱等推定配合物具有酚氧桥结构,Cu(II)及Co(II)的配位环境分别为平面四方及畸变八面体构型。测定了配合物(4-300K)的变温磁化率, 并用最小二乘法和自旋Hamiltonian算符,H=2JS1.S2-DSzl导出的磁方程拟合, 求得交换参数为J=-4.39(Samen)和-3.59cm^-^1(Sampn), 表明两个Cu(II)-Co(II)双核配合物中有弱的反铁磁性超交换相互作用。

关键词: 红外分光光度法, 元素分析, 铜络合物, 钴络合物, 乙二胺, 二氮杂菲, 水杨酸 P, 磁性, 丙二胺, 酸根

[Cu(Samen)Co(NO2-Phen)2] and [Cu(Sampn)Co(NO2-Phen)2] (H4Samen, H4Sampn, NO2-Phen = N,N'-ethylenedisalicylamide, N,N'-1,2-propylenedisalicylamide, 5-nitro-1,10-phenanthroline, resp.) were prepared Based on elemental analyses, IR and electronic spectra the complexes have a phenoxy-bridged structure and consist of Cu(II) in a planar environment and Co(II) in a distorted octahedron. The complexes were characterized with variable temperature magnetic susceptibility (4-300 K). The exchange integral J = -4.39 cm-1 for [Cu(Samen)Co(NO2-Phen)2] and -3.59cm-1 for [Cu(Sampn)Co(NO2-Phen)2]. A weak antiferromagnetic superexchange interaction operates between the metal ions.

Key words: INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, COPPER COMPLEX, COBALT COMPLEX, ETHANEDIAMINE, PHENANTHROLINE, SALICYLIC ACID P, MAGNETISM, PROPANEDIAMINE, ACID RADICAL

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