铽与1-苯基-3-甲基-4-异丁酰基吡唑啉酮-5和中性配体混配配合物的合成、表征及其荧光性能  

Synthesis, Characterization and Luminescence of Tb^3+ Mixed Ligand Complexes with 1-Phenyl-3-Methyl-4-Isobutyryl-5-Pyrazolone and Neutral Ligands

作　　者：李琴[1,2] 周德建[1,2] 黄春辉 姚光庆[1,2] 

机构地区：[1]北京大学稀土材料化学及应用国家重点实验室 [2]日本京都大学化学研究所

出　　处：《中国稀土学报》1997年第4期295-299,共5页Journal of the Chinese Society of Rare Earths

基　　金：攀登计划及国家自然科学基金

摘　　要：合成了铽与１苯基３甲基４异丁酰基吡唑啉酮５（ＨＰＭＩＢＰ）和不同中性配体的４个三元配合物Ｔｂ（ＰＭＩＢＰ）３·２Ｈ２Ｏ、Ｔｂ（ＰＭＩＢＰ）３·Ｄｉｐｙ、Ｔｂ（ＰＭＩＢＰ）３·Ｐｈｅｎ和Ｔｂ（ＰＭＩＢＰ）３·２ＴＰＰＯ（Ｄｉｐｙ＝２２′联吡啶、Ｐｈｅｎ＝１，１０邻菲口罗啉，ＴＰＰＯ＝三苯基氧膦），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热重谱对其进行表征。研究它们在固态和溶液中的荧光光谱，并用频域法测定它们在溶液中的荧光寿命。结果表明它们都具有强的绿色荧光和较长的荧光寿命，并且中性配体对铽与１苯基３甲基４异丁酰基吡唑啉酮５配合物的荧光强度有一定的影响，ＴＰＰＯ对其有荧光增强作用，而Ｐｈｅｎ对其有荧光猝灭作用。our Tb3+ mixed ligand complexes with 1phenyl3methyl4isobutyryl5pyrazolone(HPMIBP) and different neutral ligands Tb(PMIBP)3·2H2O, Tb(PMIBP)3·Dipy, Tb(PMBP)3·Phen and Tb(PMIBP)3·2TPPO(where Dipy-2,2′dipyridy, Phen=1,10phenanthroline and TPPO=triphenyl phosphine oxide), were synthesized and characterized by elemental analysis, UVvis, FTIR spectra and DTATG analysis. Their luminescence of both the solid state and solutions was studied and their fluorescence lifetimes of solutions were measured. Results show that they all emit strong green fluorescence under UV irradiation and have relatively long fluorescence lifetime. The fluorescence intensity of theses complexes is strongly dependent on the structure of the neutral ligand. TPPO can enhance the fluorescence intensity, Phen can quench the fluorescence, when Tb(PMIBP)3·2TPPO or Tb(PMIBP)3·Phen is compared with Tb(PMIBP)3·2H2O.

关 键 词：铽 中性配体 混配配合物 HPMIBP 荧光 

分 类 号：O614.341[理学—无机化学]