物理化学学报
物理化學學報
물이화학학보
ACTA PHYSICO-CHIMICA SINICA
1999年
6期
550-554
,共5页
非质子传递溶剂效应%香豆素酮染料%光谱%荧光量子产率
非質子傳遞溶劑效應%香豆素酮染料%光譜%熒光量子產率
비질자전체용제효응%향두소동염료%광보%형광양자산솔
Aprotic solvent effect%Ketocoumarin dye%Spectrum%Fluorescence quantum yield
Ketocoumarin dye 3-acetyl-7-diethylaminecoumrin was synthesized and characterized.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.
