高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (8): 1211.

• 研究简报 • 上一篇    下一篇

镧系与直链醚-2,4-二羟基苯甲醛席夫碱新配合物的合成及波谱研究

吴静1, 姚克敏1, 陈德余1, 沈联芳2, 袁汉珍2   

  1. 1. 浙江大学化学系, 杭州, 310027;
    2. 中国科学院武汉物理与数学研究所, 波谱与原子分子物理国家重点实验室, 武汉, 430071
  • 收稿日期:1997-08-06 出版日期:1998-08-24 发布日期:1998-08-24
  • 通讯作者: 姚克敏
  • 作者简介:吴静,女,29岁,硕士,讲师,现在杭州师范学院化学系.
  • 基金资助:

    国家自然科学基金(批准号:29671026)、浙江省自然科学基金和波谱与原子分子物理国家重点实验室资助课题.

Studies of Synthesis and Magnetic Resonance of Lanthanide Complexes with Noncyclic Polyether 2,4-dihydroxybenzaldehyde Schiff Base

WU Jing1, YAO Ke-Min1, CHEN De-Yu1, SHEN Lian-Fang2, YUAN Han-Zhen2   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou, 310027;
    2. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Phys. and Math., the Chinese Acadamy of Sciences, Wuhan, 430071
  • Received:1997-08-06 Online:1998-08-24 Published:1998-08-24

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被引次数

13

摘要： Vogtle等发现,直链醚除具有类似冠醚配位各种金属离子的能力外,还弥补了冠醚的不足之处,如易合成、产率高、价廉等.我们曾报道过有关EPR工作.本文合成了2,4-二羟基苯甲醛缩二甘醇二胺(DHYDA)与镧系的新配合物.

关键词: 镧系配合物, 直链醚席夫碱, 波谱

Abstract: Nine new Ln(Ⅲ) complexes with a Schiff base, 2,4-dihydroxybenzylidene diglycol diamine, [Ln2(DHYDA)3(NO3)3](NO3)3· nH2O (Ln=La, Pr, Nd, n=5; Ln=Sm, Gd, Tb, Er, Yb, Y, n=6), have been synthesized. Intramolecular Hbond in free ligand, the coordination of 2-OH and the uncoordination of 4-OH group in the obtained complexes have been proved by UV, IRspectra especially by 500 MHz 1H and 12CNMRs pectra. The existence of two different structure ligands in the complexes has been suggested as well. One of the ligands acts as a bridge to connect two Ln3+. The EPR spectra of the Gd(Ⅲ) complex exhibits the "U" spectrum feature. The crystal field strength, the local symmetry around Gd3+in the complex have been discussed. The possible coordination number 10 is suggested tentatively.

Key words: Lanthanide complexe, Schiff base, Magnetic resonance

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