摘要
合成了一系列带有不同推、拉电子能力的取代苯乙烯基吡嗪化合物，测定了它们在不同极性、不同粘度介质条件下的吸收光谱和发射光谱．结果表明，异构化和邻近效应是导致该类化合物荧光量子产率较低的主要原因。
A series of styryl pyrazine derivatives with different electron donating or withdrawing substituents were synthesized. The absorption and emission spectra of these compounds in different polar or viscous medium were obtained. Results indicate that cooperation of photo-isomerization and 'negative solvatokinetic' effect leads to lower fluorescence quantum yields of these compounds. Properties of substituents have great influence on the photophysical and photochendcal behavior of the synthesized pyrazine derivatives.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1996年第5期418-422,共5页
Acta Physico-Chimica Sinica
基金
国家自然科学基金
关键词
吡嗪
光物理
异构化
苯乙烯基
吸收光谱
Pyrazine, Photophysics, Proximity effect, Isomerization
