香豆素酮染料光谱性质的研究  

Spectra Studies of Ketocoumarin Dye

作　　者：高放[1] 杨永源[1] 

机构地区：[1]中国科学院感光化学研究所,北京100101

出　　处：《物理化学学报》1999年第6期550-554,共5页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金!59773011;中科院感光化学研究所光化学开放实验室资助

摘　　要：Ketocoumarin dye 3-acetyl-7-diethylaminecoumrin was synthesized and charater ized. The spectra and photophysics behavior were studied in different aprotic solvents. Results showed that the fluorescence quantum yield had a maximum and the ratio of non-radiative transition rate to radiative transition rate had a minimum with the increasing of the solvent polarity. Also, the fluorescence of the dye can be quenched by triethylamine and the change is in accordance with the Stern-Volmer formula. These phenomenon was discussed preliminarily.Ketocoumarin dye 3-acetyl-7-diethylaminecoumrin was synthesized and charater ized. The spectra and photophysics behavior were studied in different aprotic solvents. Results showed that the fluorescence quantum yield had a maximum and the ratio of non-radiative transition rate to radiative transition rate had a minimum with the increasing of the solvent polarity. Also, the fluorescence of the dye can be quenched by triethylamine and the change is in accordance with the Stern-Volmer formula. These phenomenon was discussed preliminarily.

关 键 词：非质子传递溶剂 香豆素酮染料 光谱 染料 

分 类 号：TQ610.1[化学工程—精细化工] TQ611