溶剂效应对中氮茚荧光性质的影响  

Solvent affection on the Fluorescence properties of Indolizines

作　　者：沈珠英[1] 陈维[1] 沈永淼[1] 杜江燕[1] 王炳祥[1] 沈健[1] 胡宏纹[2] 

机构地区：[1]南京师范大学化学与环境科学学院 [2]南京大学化学工学院,江苏南京210093

出　　处：《南京师大学报（自然科学版）》2005年第1期58-61,共4页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：江苏省教育厅自然科学基金(04KJD150103);南京师范大学学生科学基金资助项目(2004XK011).

摘　　要：　合成了一系列中氮茚化合物,比较了它们在不同有机溶剂中紫外光谱和荧光光谱的变化情况,探索了化合物的微观结构与其光学性能之间的某些关系,结果表明溶剂极性对该类化合物吸收光谱的影响不明显,但对化合物的Stoke's位移、荧光强度以及荧光量子效率的影响都较大,中氮茚化合物分子的荧光特性首先取决于它自身的分子结构,特别是各种能增强系间穿越过程的取代基的存在,而外界因素,如介质,温度、压力、浓度、酸度等对试剂荧光特性也有很大影响.A series of indolizines are synthesized. Their photophysical properties are compared in different solvent by investigating their UV-Vis Absorption spectra of the compounds. The relationship was found between the indolines′ microcosmic structure and their corresponding optical properties. The results show that the effects of solvent polarity on Stoke's shift, fluorescence of intensity and fluorescence quantum yield are more evident than Absorption spectra, and that the fluorescence properties of indolizines are mainly determined by the chemical structure, however, the effects of the external factors such as solvent, temperature, pressure need taking into consideration too.

关 键 词：中氮茚 荧光光谱 溶剂效应 

分 类 号：O621.16[理学—有机化学]