高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1007.

• 论文 • 上一篇    下一篇

Ln(p-ABA)3bpy·2H2O的合成、晶体结构和光谱分析

郑晓梅1, 金林培1, 王明昭1, 张家骅2, 吕少哲2   

  1. 1. 北京师范大学化学系, 北京, 100875;
    2. 中国科学院长春物理研究所
  • 收稿日期:1994-06-17 修回日期:1994-10-20 出版日期:1995-07-24 发布日期:1995-07-24
  • 通讯作者: 金林培
  • 作者简介:郑晓梅,女,28岁,硕士.
  • 基金资助:

    国家科学技术委员会重大基础研究基金;中国科学院长春物理研究所激发态物理开放实验室资助课题

Crystal Structure and Spectra of Ln(p-ABA)3bpy·2H2O Complexes

ZHENG Xiao-Mei1, JIN Lin-Pei1, WANG Ming-Zhao1, ZHANG Jia-Hua2, LU Shao-Zhe2   

  1. 1. Dept. of Chem., Beijing Normal Univ., Beijing, 100875;
    2. Changchun Instit. of Phys., Acad. Sci.
  • Received:1994-06-17 Revised:1994-10-20 Online:1995-07-24 Published:1995-07-24

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摘要： 报道了Ln(p-ABA)3bpy·2H2O(Ln=Nd,Eu,Yb)的合成和晶体结构、拉曼光谱及荧光光谱的测定。晶体属三斜晶系,P1空间群。中心原子配位数为8。羧基具有单齿、螯合双齿和桥式3种配位方式。配合物的拉曼光谱与晶体结构测定结果吻合。Eu(p-ABA)3bpy·2HO的高分辨激发光谱和发射光谱表明,Eu(Ⅲ)离子仅有一种晶格格位,中心离子具有C1格位对称性。

关键词: 镧系元素配合物, 晶体结构, 拉曼光谱, 荧光光谱

Abstract: Syntheses of Ln(p-ABA)3bpy·2H2O(Ln=Nd, Eu, Yb, p-ABA: p-aminoben-zoate, bpy: bipyridine) and their crystal structure, Raman and fluorescence spectra are re-ported. The crystal belongs to triclinic system with space group P1 The coordination number of the central atom is eight. There are three coordinated modes for carboxylate groups: unidentate, bidentate and bridged. Raman spectra of the complexes indicate that there are more than one coordinated modes for the carboxylate groups. This is in good agreement with the result of X-ray analysis. The high resolution spectra of Eu(p-ABA)3bpy·2H2O show only one Eu(Ⅲ) ion site in the complex. The symmetry for the Eu(Ⅲ) site is C1.

Key words: Lanthanide complexes, Crystal structure, Raman spectra, Fluorescence spectra

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