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合成了 3种 4-酰基 -双 (1 ,3 -二苯基 -5 -吡唑啉酮 ) ,1 ,5 -双 (1 ,3 -二苯基 -5 -吡唑啉酮 -4 -基 ) -1 ,5 -戊二酮 ;1 ,6-双 (1 ,3 -二苯基 -5 -吡唑啉酮 -4 -基 ) -1 ,6-己二酮和 1 ,1 0 -双 (1 ,3 -二苯基 -5 -吡唑啉酮 -4 -基 ) -1 ,1 0 -癸二酮 ,通过元素分析、红外光谱和核磁共振氢谱对产物组成进行了表征 .合成了它们的 Tb( )二元和三元 [1 ,1 0 -二氮杂菲 (Phen)或 2 ,2 -联吡啶 (Dipy) ]配合物 ,测定了配合物的荧光光谱 ,对其荧光性质进行了研究 .结果表明 ,配合物发射 Tb( )的特征荧光 ,4-酰基 -双 (1 ,3 -二苯基 -5 -吡唑啉酮 )配体的三重态能级与Tb( )的最低激发态 (5D4 )能级匹配较好 ;配合物荧光强度随 4-酰基 -双 (1 ,3 -二苯基 -5 -吡唑啉酮 )配体 2个吡唑环间碳链的增长而减弱 ;第 2配体 Phen和 Dipy具有荧光增强作用 ,且前者优于后者
Three kinds of 4 - acyl - bis (1,3 - diphenyl - 5 - pyrazolone), 1, 5 - bis ) -1,5-pentanedione; 1,6-bis (1,3-diphenyl-5-pyrazolone-4-yl) -1,6-hexanedione and 1,1-bis (1, 3 - diphenyl - 5 - pyrazolone - 4 - yl) -1,10 - decanedione was synthesized and characterized by elemental analysis, IR and 1H NMR. Their Tb () binary and ternary [1, 1 0-phenanthroline (Phen) or 2, 2-dipyridyl] complexes were used to determine the fluorescence spectra of the complexes. The results showed that the triplet energy of 4 - acyl - bis (1, 3 - diphenyl - 5 - pyrazolone) ligand and the lowest Tb The excited state (5D4) has good energy level matching. The fluorescence intensity of the complex increases with the increase of the carbon chain of two pyrazole rings of 4 - acyl - bis (1,3 - diphenyl - 5 - pyrazolone) The second ligand Phen and Dipy have fluorescence enhancement, and the former is better than the latter