| 草酸根桥联的不对称双核铜(Ⅱ)和铜(Ⅱ)-锌(Ⅱ)配合物的合成与磁性 |
| SYNTHESIS AND MAGNETISM OF ASYMMETRICDICOPPER (II) AND COPPER(II)-ZINC(II) COMPLEXES THROUGH OXALATO BRIDGE |
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| 摘要: 本文合成了一组新的不对称的双核配合物,[Cu2(C2O4)2terp]和〔Cu Zn(C2O4)2terp〕(图1),terp表示联三吡啶。配合物〔Cu2(C2O4)2terp〕的变温磁化率已测,其数值已用最小二乘法与Bleaney-Bowers方程拟合,求得交换积分J=-47.20cm-1。文中还用Kahn理论解释了这种较弱的反铁磁自旋交换作用。 |
| 关键词: 双核配合物 草酸根桥 铜(Ⅱ)-铜(Ⅱ) 铜(Ⅱ)-锌(Ⅱ) 磁性 |
| 基金项目: 国家自然科学基金 |
| Abstract: New asymmetric binuclear complexes [Cu2(C2O4)2terp] and [CuZn(C2O4) terp] (Fig.1) have been synthesized by reaction of K2Cu(C2O)·2H2O, Zn(Ac)2·2H2O or Cu(Ac)2·H2O and terp, where terp denotes terpyridyl. Based on IR,ESR,elemental analyses and electronic spectra, the complexes are proposed, to have oxalato-bridged structure and to consist of Cu(II) in a planar enviroment and another Cu(II) (or Zn(II)) in a tetragonal pyramidal enviroment. The complex C Cu2(C2O4)2terp] has been characterized with vailable-temperature suseptibility and data were least-squares fit to the Blenaey-Bowers equation. The exchange integral, J, was found to be-47.20 cm-1, indicating that a weaker antiferromagnetic spin-exchange interation operates between the metal ions. The weaker interaction can be interpreted using Kahn's theory. |
| Keywords: binuclear complex oxalato bridge dicopper(Ⅱ) copper(Ⅱ)-zinc(Ⅱ) magmetism |
| 投稿时间：1988-01-30 |
| 摘要点击次数: 1505 |
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| 廖代正,张智勇,赵倩华,王耕霖.草酸根桥联的不对称双核铜(Ⅱ)和铜(Ⅱ)-锌(Ⅱ)配合物的合成与磁性[J].无机化学学报,1990,6(2):193-197. |
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