新型铕,铽(Ⅲ)三元配合物的合成、表征及发光性能Synthesis,Characterization and Luminescent Properties of Novel Europium,Terbium(Ⅲ) Ternary Complexes
程果;魏长平;任晓明;王贺;
摘要(Abstract):
采用Claisen缩合反应设计合成了β-二酮配体1-(4-溴苯)-4,4,4-三氟丁烷-1,3-二酮(BPT),并合成了相应的新型稀土Eu,Tb(Ⅲ)三元配合物。通过元素分析、1H NMR谱、红外光谱、紫外光谱、荧光光谱和磷光光谱技术对合成的产物进行了表征和分析。红外光谱分析表明:BPT中存在着酮式-烯醇式互变;配合物中的稀土离子与BPT中的氧原子以及Phen中的氮原子形成了配位键。紫外光谱表明配合物主要是由第一配体BPT吸收能量。荧光光谱显示Eu(BPT)3Phen的发光强度较大,进一步的研究表明,BPT的最低三重态能级与Eu3+的5D0能级匹配较好。
关键词(KeyWords): β-二酮;合成;发光;能级匹配;稀土
基金项目(Foundation): 吉林省教育厅“十一五”科技项目(201028,201034)资助
作者(Authors): 程果;魏长平;任晓明;王贺;
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