Syntheses, characterization and fluorescent properties of two triethylene-glycol dicoumarin-3-carboxylates
作者:Hui Zhang、Tianzhi Yu、Yuling Zhao、Duowang Fan、Long Qian、Changhui Yang、Kai Zhang
DOI:10.1016/j.saa.2006.12.052
日期:2007.11
by element analysis, (1)H NMR, FT-IR and UV-vis absorption spectra. The photoluminescent behaviors of triethylene-glycol dibenzo[5,6]coumarin-3-carboxylate doped in PMMA were discussed. These compounds exhibit strong blue emission under ultraviolet light excitation. Compared to coumarin-3-triethylene glycol diester, the absorption and emission spectra of benzo[5,6]coumarin-3-triethylene glycol diester
合成了两种新颖的三乙二醇二香豆素-3-羧酸酯,并通过元素分析,(1)1 H NMR,FT-IR和UV-vis吸收光谱进行了表征。讨论了在PMMA中掺杂的三乙二醇二苯并[5,6]香豆素-3-羧酸酯的光致发光行为。这些化合物在紫外光激发下显示出强烈的蓝色发射。与香豆素-3-三乙二醇二酯相比,苯并[5,6]香豆素-3-三乙二醇二酯的吸收和发射光谱由于苯部分的较大共轭而发生了红移。这些衍生物具有探索有机电致发光材料的潜力。