高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (9): 951.

• 论文 • 上一篇    下一篇

四价铈卟啉配合物的合成和性质研究

王静秋, 张从良, 秦子斌   

  1. 武汉大学化学系
  • 收稿日期:1987-02-14 出版日期:1988-09-24 发布日期:1988-09-24
  • 通讯作者: 王静秋
  • 基金资助:

    国家自然科学基金

Studies oh Complexes of Quadrivalent Cerium with Tetraphenylporphin and Its Derivative

Wang Jingqiu, Zhang Congliang, Qin Zibin   

  1. Department of Chemistry, Wuhan University, Wuhan
  • Received:1987-02-14 Online:1988-09-24 Published:1988-09-24

PDF (PC)

被引次数

5

摘要： 由于镧系卟啉配合物具有优于d过渡金属卟啉配合物的特殊光学和磁学性能,因而越来越引起人们的浓厚兴趣。但是,十多年来,这方面的研究工作主要集中在三价稀土卟啉配合物上[1],还未见到四价稀土卟啉配合物的报道。我们合成了铈(Ⅳ)的卟啉配合物,并研究了它们的光谱性质。

关键词: 卟啉配合物, 四价铈

Abstract: The synthesis and the characterization of the metalloporphyrin complexes of the acetylacetonate, cerium(Ⅳ) with tetraphenylporphin (A) and tetra-p-chlorophenylporphin (B) have been described for the purpose of the study on inter-ation of cerium (Ⅳ) cation with both ligands acetylacetone (acac) and porphyrin. These compounds have been identified by elemental analyses, electron, infrared, Laser Raman and 1H NMRspectra. The results indicated: the Ce(Ⅳ)-Ostreching vibrations in the infrared spectra of Ce(acac)4 exhibits an absorption peak at 398cm-1. The chemical shifts of its protons (Hd and He) in 1H NMRspectra show 1.92 and 5.28 ppm, respectively. But in the porphyrin complexes of Ce (Ⅳ) ,they are shifted to high magnetic field for the enhanced shielding effect. The Ce(Ⅳ)-Ostreching frequency in the Laser Raman spectra of the tetra-p-chlorophenylporphin of Ce(Ⅳ) appears in 372cm-1.The stoichiometric ratio of the porphyrin complexes of Ce(Ⅳ) is 1:1:2 (Ce (Ⅳ):A(B): acac) similar to that of the thorium porphyrin complex.

Key words: Metalloporphyrin complex, Quadrivalent cerium

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