铕(Ⅲ)-4-乙烯基吡啶共聚物稀土高分子配合物的合成及其光物理行为的研究  

Study on Synthesis and Photoluminescence of the Complexes of Rare Earth Eu(Ⅲ) with 4-Vinyl Pyridine Copolymer

作　　者：高保娇[1] 杨云峰[1] 程原[1] 施冬健[1] 

机构地区：[1]华北工学院化学工程系,山西太原030051

出　　处：《光谱学与光谱分析》2002年第3期371-374,共4页Spectroscopy and Spectral Analysis

基　　金：山西省自然基金项目

摘　　要：以 4 乙烯基吡啶 (4VP)与甲基丙烯酸甲酯 (MMA)的共聚物为配体 ,并以邻菲洛啉 (Phen)及 2 ,2′ 联吡啶 (Bipy)小分子配体协同反应 ,与Eu(Ⅲ )配位 ,合成了稀土高分子配合物 ;通过FTIR表征了配合物的结构 ;通过紫外光谱与荧光光谱的测定 ,较充分地研究了稀土高分子配合物光致发光的光物理过程。实验结果表明 ,4 乙烯基吡啶共聚物通过吡啶环上的氮原子与稀土离子可直接配位 ;小分子配体的协同配位 ,可使稀土离子配位数趋于满足 ,且由于小分子配体能有效地加强能量吸收及分子内的能量传递 ,大大增强了配合物的荧光强度。Rare earth (Eu) polymer ternary complexes were synthesized using copolymer of 4 vinyl pyridine methyl acrylate as ligand,and using phen and bipy as coordination ligand.The compositions of the complexes were characterized by FTIR and elemental analysis.The photophysical process of photoluminescence of the complexes were characterized by FTIR and elemental analysis.The photophysical process of photoluminescence of the complexes was discussed more fully by UV spectra and fluorescence spectra.The experiment result shows that the copolymer of 4 vinyl pyridine can coordinate into rare ions directly by nitrogen atom in the pyridine ring.When small ligand reacts with coordination,the fluorescence intensity of the complexes increases greatly because of stronger intermolecular energy transfer.

关 键 词：合成 光物理行为 稀土高分子配合物 4-乙烯基吡啶共聚物 铕(Ⅲ) 光致发光 

分 类 号：O614.338[理学—无机化学] O482.31[理学—化学]