[(n-C_4H_9)_4N][Eu_xM_(1-x)(TTA)_4](M=La、Sm、Gd、Tb)的光致发光  

Photoluminescence of ［(n-C_4H_9)_4N］［Eu_xM_(1-x)(TTA)_4］(M=La、Sm、Gd、Tb)

作　　者：刘铭钊[1] 杨展澜[1] 张莉[1] 翁诗甫[1] 吴瑾光[1] 

机构地区：[1]北京大学化学与分子工程学院

出　　处：《物理化学学报》2002年第5期468-472,共5页Acta Physico-Chimica Sinica

基　　金：国家重点基础研究发展规划(G1998061311);国家自然科学基金(200230005);"政"基金资助项目

摘　　要：合成了一类组成为犤(n-C4H9)4N犦犤EuxM1-x(TTA)4犦(M=La、Sm、Gd、Tb)的固体配合物,通过测定其红外光谱,X射线粉末衍射谱和荧光光谱,研究了配合物结构和发光性质随Eu3+浓度变化的规律.红外光谱和XRD谱的分析结果表明,在体系中没有新化合物生成.而荧光光谱分析结果表明发光强度与Eu3+浓度不成线性关系,不发光的基质配合物组分对发光有不同大小和不同类型的影响.提出一种可能的发光机制解释这一共发光现象.A series of [(n C4H9)4N][EuxM1-x (TTA)4](M=La, Sm,Gd, Tb) doped complexes were synthesized. The results of FT IR and XRD spectroscopies indicated that the structures of the doped complexes are as same as that of pure complexes [(n C4H9)4N](Ln=Eu, La, Sm, Gd, Tb). It is found that the luminescent intensity of the doped complexes did not have a linear relation with amount of Eu3+. Addition of La3+, Gd3+ and Tb3+ increased the luminescence of Eu3+ in varying degrees, and addition of Sm3+ decreased the luminescence of Eu3+. The possible intermolecular energy transfer mechanism by triplet states of ligands was discussed.

关 键 词：光致发光配合物 稀土配合物 光致发光 荧光光谱 能量传递机理 发光特性 

分 类 号：O657.3[理学—分析化学]