中华医学超声杂志

应用化学 ›› 1998, Vol. 0 ›› Issue (5): 1-5.

• 研究论文 •    下一篇

Ln(Ⅲ)-Co(Ⅱ)与双水杨醛缩乙二胺Schiff碱异核配合物的合成与波谱性质

鲁桂1, 姚克敏1, 沈联芳2   

  1. 1. 浙江大学化学系 杭州310027;
    2. 中国科学院武汉物理研究所, 波谱与原子分子物理国家重点实验室 武汉
  • 收稿日期:1998-02-09 修回日期:1998-06-15 出版日期:1998-10-10 发布日期:1998-10-10
  • 基金资助:
    国家自然科学基金;浙江省自然科学基金;波谱与原子分子物理国家重点实验室基金

Synthesis and Magnetic Resonance Spectra of Heteronuclear Ln(Ⅲ)-Co(Ⅱ) Complexes with Bis salicylaldehyde Ethylenediamine Schiff Base

Lu Gui1, Yao Kemin1, Shen Lianfang2   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou 310027;
    2. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan
  • Received:1998-02-09 Revised:1998-06-15 Published:1998-10-10 Online:1998-10-10

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摘要： 合成了双水杨醛缩乙二胺Schif碱(SALEN)与钴的配合物Co(SALEN)(NO3)2·3H2O及镧系-钴的异核配合物LnCo(SALEN)2(NO3)5·2H2O(Ln=La,Nd,Sm,Gd,Yb,Y).以紫外、红外光谱,特别是1H NMR及EPR波谱等方法研究了它们在组成、结构和配位等方面的异同。文中讨论了配合物EPR谱在不同溶剂中峰宽的相对关系、配合物晶体场强度及Gd3+周围局部对称性等问题。

关键词: 镧系异核配合物, Schif碱, NMR, EPR波谱

Abstract: A series of heteronuclear Ln(Ⅲ)-Co(Ⅱ) and Co(Ⅱ) complexes with bis salicylaldehyde ethylenediamine(SALEN) have been synthesized. They were characterized as LnCo(SALEN)2(NO3)5·2H2O(Ln=La,Nd,Sm,Gd,Yb,Y) and Co(SALEN)(NO3)2·3H2O respectively. The differences between their compositions, structures and coordinations have been investigated by UV, IR, especially by 1H NMR and EPR spectra. The EPR spectra of the GdCo(SALEN)2(NO3)5·2H2O complex in powder and various solvents at different temperatures and the“U”spectral feature, crystal field strength and local symmetry around Gd3+ have been discussed.

Key words: heteronuclear lanthanide complexes, Schiff base, NMR, EPR

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