作　　者： ; ; ; ;

机构地区： 广州医学院公共卫生学院

出　　处： 《广州医学院学报》 2010年第5期13-16,共4页

摘　　要： 目的：研究不同溶剂对2，9-二（2-咪唑并[4，5－f]邻菲咯啉）邻菲咯啉电子吸收和荧光光谱的影响。方法：用电子吸收光谱和荧光光谱等方法，比较配体bipp在5种不同溶剂中的峰形及光谱强度。结果：在紫外区，配体bipp在二氯甲烷，甲醇，乙腈，醋酸，氨水等5种溶剂中均有显著吸收，各介质中均是275Bill附近的吸收峰最强，它们的摩尔吸光系数（ε）均在105数量级。配体bipp在5种溶剂中荧光发射谱带轮廓相似，在二氯甲烷中发光强度最大。结论：溶剂的极性和成氢键能力等因素对配体bipp的光谱强度有相当大的影响。 Objective： To explore the influence of different solvents on the electronic absorption and fluorescence spectra of 2,9-bis （ 2-imidazol [ 4,5-f] [ 1,10 ] phenanthroline ） -1,10-phenanthroline. Methods： Compared with the peak shapes and spectral intensity of ligand in the five solvents by means of electronic absorption and fluorescence spectra. Results：In ultraviolet region, the ligand bipp all had obvious absorption in the five solvents, and the absorption band around 275nm was the strongest. Molar absorptivities of the ligand in the five solvents were determined, whose order of magnitude was l0s. The fluorescent emission spectrum of the ligand in the five solvents had the similar peak shapes. And the emission spectrum intensity of the ligand in methylene chloride was the strongest. Conclusion： The polarity and the ability of forming hydrogen bonds of the solvents have great influence on the absorption and fluorescence spectral intensity of the ligand.

关 键 词： 二 咪唑并 邻菲咯啉 邻菲咯啉 电子吸收光谱 荧光光谱 溶剂

领　　域： [理学] [理学]