两个D-π-A型查耳酮类染料的光物理性质  

Photophysical properties of two D-π-A chalcone dyes

作　　者：曹凤霞[1] 曹笃霞[1] 王玉洪[1] 李国忠[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《安徽大学学报（自然科学版）》2006年第4期65-69,共5页Journal of Anhui University(Natural Science Edition)

基　　金：国家863计划基金资助项目(2003AA333070);济南大学博士启动基金资助项目(B0415)

摘　　要：合成了两个具有典型D-π-A型共轭结构的查耳酮类有机染料:4-N,N-二甲胺基-2'-羟基查尔酮(1)和4-N,N-二乙胺基-2'-羟基查尔酮(2).首次得到了有机染料2的单晶,并用X射线衍射方法测定了其晶体结构.研究了它们在不同溶剂和固体基质(聚甲基丙烯酸甲酯(PMMA)、S iO2溶胶-凝胶玻璃和PMMA/S iO2溶胶-凝胶复合玻璃)中的光物理性质.研究发现有机染料在固体基质中的荧光强度相对于溶液中大大增强,稳定性提高.Two chalcone dyes with typical D - π - A conjugated structure have been synthesized, which are named 4 - N, N - dimethylamino - 2 ＇- hydroxychalcone （ 1 ） and 4 - N, N - diethylamino - 2 ＇- hydroxychalcone （2）. The single crystal of 2 was obtained and its crystal structure was determined by X - ray diffraction. The photophysical properties of the dyes in different solvents and sohd matrices including poly （methyl methacrylate） （PMMA）, SiO2 sol -gel glass and PMMA： SiO2 sol -gel composite glass were investigated. The results reveals that the fluorescence intensity of the organic dyes in the solid matrices increase greatly relative to that in solvents. The stabihty of the dyes are enhanced obviously in solid matrices.

关 键 词：查尔酮 晶体结构 PMMA/SiO2溶胶-凝胶复合玻璃 

分 类 号：TQ171.739[化学工程—玻璃工业]