铽与4—酰代吡唑啉酮—5的三元配合物的合成与荧光性质

合成并表征了一系列铽与含不同４－酰代的１－苯基－３－甲基－吡唑啉酮－５的三元配合物Ｔｂ９Ｌ）３．２Ｈ２Ｏ和Ｔｂ（Ｌ）３．Ｄｉｐｙ「Ｌ＝１－苯基－３－甲基－４－乙酰基吡啥林酮－５（ＰＭＡＰ），１－苯基－３－甲基－４－丙酰基吡唑啉酮－５（ＰＭＰＰ），１－苯基－３－甲基－４－异丁酰基吡唑啉酮－５（ＰＭＩＢＰ），１－苯基－３－甲基－４－特戊酰基吡唑啉酮－５（ＰＭＰＶＰ），１－苯基－３－甲基－４－苯甲酰基吡

Synthesis and Luminescence of a Series Terbium Ternary Complexes with 1-Phenyl-3-methyl-4-acyl-5-pyrazolones

A series of terbium ternary complexes with 4-acyl substituted pyrazolones:Tb(L)3. 2H2O and Tb(L)3. Dipy, where L=1-phenyl-3-methyl-4-acetyl-5-pyrazolone (PMAP ), 1-phenyl-3-methyl-4-propionyl-5-(PMPP), 1-phenyl-3-methyl-4-isobutyryl-5-pyrazolone (PMIBP), 1-phenyl-3-methyl-4-pivaloyl-5-p (PMPVP) and 1-phenyl-3-methyl-4-benzoyl-5-py (PMBP ), Dipy=2, 2'-dipyridyl, were synthe-sized and identified by elementary analysis. The complexes were characterized by FT-IR,UV-Vis spectra and TG-DTA analysis. The luminescences from both the solid state and so-lution were studied and their fluorescence lifetime was determined by using the frequency-do-main method. The results show that both fluorescence intensities and lifetime of these com-plexes strongly depend on the structure of the substituted 4-acyl groups. The fluorescence intensities of the alkyl acyl substituted pyrazolone terbium complexes are three orders magni-tude stronger than that of Tb (PMBP)3 2H2O, and the introduction of the neutral ligand (Dipy) can enhance the fluorescence intensities of the complexes