吡唑啉酮类稀土配合物的发光性质研究  

Studies on Luminescence Properties of Lanthanide Complexes Based on Pyrazolone

作　　者：沈莉[1] 石梅[1] 石恩娴[2] 杜玉扣[2] 李富友[1] 黄春辉[1] 

机构地区：[1]复旦大学先进材料实验室,上海200433 [2]苏州大学化学化工学院,苏州215006

出　　处：《高等学校化学学报》2006年第8期1413-1417,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20490210;20501006);上海市科委科研项目(批准号:050J14004)资助

摘　　要：合成了一系列吡唑啉酮类稀土铽、铕、钐、钆、镝的配合物,并采用元素分析、红外光谱和紫外-可见光谱对其进行了表征,解析了铕配合物的晶体结构.测定了配体的三重态能级,研究了这4种配合物的发光性质.并通过研究配体到稀土离子的能量传递过程,合理地解释了这些稀土配合物发光性质的差异.A series of lanthanide （ Tb^3 ＋ , Eu^3＋ , Sm^3＋ , Dy^3＋ , Gd^3＋ ） complexes with 1,3-diphenyl-4-phenylaeetyl-5-pyrazolone were synthesized and characterized by elementary analysis, FTIR and UV-Vis spectra. The Eu^3＋ complex was further characterized by X-ray diffraction. The luminance properties of the lanthanide complexes were studied in detail. Importantly, the triplet energy level of the ligand was measured with reference to the phosphorescence spectrum of its gadolinium complex, and the difference between the ligand＇s triplet energy level and the excited energy level of lanthanide ion results in different photolumineseences of the corresponding complex.

关 键 词：稀土配合物 光致发光 吡唑啉酮类配体 电致发光 

分 类 号：O614.33[理学—无机化学]