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化学学报
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化学学报 ›› 1998, Vol. 56 ›› Issue (1): 52-57. 上一篇    下一篇

研究论文

铽与1-苯基-3-甲基-4-酰代吡唑啉-5-酮的三元配合物的合成、表征与荧光性能

李琴;周德建;黄春辉;姚光庆;周永芬;梅谷重夫;松井正和   

  1. 北京大学稀土材料化学及应用国家重点实验室;日本京都大学化学研究所
  • 发布日期:1998-01-15

Synthesis, characterization and luminescence of Tb(III)-1-phenyl-3-methyl-4-acyl-5-pyrazolone ternary complexes

LI QIN;ZHOU DEJIAN;HUANG CHUNHUI;YAO GUANGQING;ZHOU YONGFENG;MEIGU ZHONGFU;SONGJING ZHENGHE   

  • Published:1998-01-15

PDF

510

被引次数

50 | 7

合成了铽与1-苯基-3-甲基-4-异丁酰基吡唑啉-5-酮(HPMIBP)、1-苯基-3-甲基-4-苯甲酰基吡唑啉-5-酮(HPMBP)的四个三元配合物Tb(PMIBP)3.2H2O(A1), Tb(PMIBP)3.bpy(A2), Tb(PMBP)3.2H2O(B1)和Tb(PMBP)3.bpy(B2)(bpy=2, 2'-联吡啶)。用元素分析确定了它们的组成, 并用紫外-可见光谱、红外光谱、差热-热重谱对其进行了表征。研究了它们在固态和溶液中的荧光光谱, 并用频域法测定了它们在溶液中的荧光寿命, 结果表明A1和A2的荧光强度比相应的B1和B2强三个数量级, A2与A1或B2与B1相比, 荧光强度也有一定程度的增强,并且不同溶剂对其荧光强度和荧光寿命都有较大的影响。

关键词: 紫外分光光度法, 红外分光光度法, 元素分析, 差热分析, 铽, 酮 P, 吡唑啉 P, 结构表征

Four Tb(III) ternary complexes with 1-phenyl-3-methyl-4-isobutyrylpyrazol-5-one (HPMIBP) or 1-phenyl-3-methyl-4-benzoylpyrazol-5-one (HPMBP) as the ligand: Tb(PMIBP)3.2H2O(A1), Tb(PMIBP)3.bpy(A2), Tb(PMBP)3.2H2O(B1) and Tb(PMBP)3.bpy(B2) (where bpy=2, 2'-dipyridyl), were ynthesized and identified by elemental analysis. They were characterized by UV-Vis, FT-IR spectra and DTA-TG analysis. Their luminescence from both the solid state and solutions were studied and their fluorescence lifetimes were measured from solutions. Results show that the fluorescence intensities of A1 and A2 are three orders magnitude stronger than those for B1 or B2; besides, the fluorescence intensity of A2 and B2 are relatively stronger than those of A1 and B1. The solvents strongly effect on the fluorescence performances of the complexes both in fluorescence intensity and lifetime.

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, DIFFERENTIAL THERMAL ANALYSIS, TERBIUM, KETONE P, PYRAZOLINE P, STRUCTURE CHARACTERISTICS

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