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化学学报
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化学学报 ›› 1990, Vol. 48 ›› Issue (1): 58-63. 上一篇    下一篇

研究论文

四(二苯甲酰甲烷)合铕酸二乙铵的激发光谱和荧光光谱

金林培;Bunzli, J-C, G.;Plancherel, D.   

  1. 北京师范大学化学系;瑞士洛桑大学
  • 发布日期:1990-01-15

Excitation and luminescence spectra of diethylammonium tetrakis(dibenzoylmethanato)europate

JIN LINPEI;Bunzli, J-C, G.;Plancherel, D.   

  • Published:1990-01-15

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632

被引次数

7

在296和77K测定了四(二苯甲酰甲烷)合铕酸二乙铵[(C2H5)2NH2Eu(DBM)4]的高分辨激发光谱和荧光光谱。光谱数据说明在77K, 配合物含有五种Eu(III)格位。详细分析发光光谱说明, 由于配合物中配位体里的苯基错位产生不同的构型, 形成了不同的Eu(III)物种, 显示出不同的晶体场效应, Eu(III)离子的这种灵敏性可以作为晶体构型探针。

关键词: 甲烷 P, 发光光谱, 苯甲酸 P, 激发态, 二乙胺 P, 晶场理论, 铕络合物, 荧光分光光度法, 配位场理论

High-resoln. excitation and luminescence were measured at 296 and 77 K. Eu3+ sites of Et2NH2+Eu(Bz2CH)4- were probed. The 5D0?F0 excitation spectrum of the complex displays 3 max. at room temperature and splits into 5 max. at 77 K. A series of similar spectra arise from slightly unequiv. Eu(Bz2CH)4- moieties differing in the disorder of Ph rings, experiencing slightly different crystal field effects. This shows the sensitivity of Eu3+ as conformational probe in the solid state.

Key words: METHANE P, LUMINESCENT SPECTRA, BENZENECARBOXYLIC ACID P, EXCITED STATE, DIETHYLAMINE P, CRYSTAL FIELD THEORY, EUROPIUM COMPLEX, FLUOROSPECTROPHOTOMETRY, LIGAND FIELD THEORY

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