一些新的芘衍生物的合成及光物理研究

本文合成了一系列新的芘衍生物，用紫外光谱和稳态荧光光谱方法研究了它们的光物理性质。结果表明，取代烷基几乎不影响芘的吸收光谱，而使芘的荧光光谱振动精细结构消失或部分消失；取代甲酰基的芘衍生物的荧光发射强烈依赖于溶剂的性质，极性溶剂中荧光光谱无精细结构，且荧光发射峰随介质极性的增加而红移。

SYNTHESIS AND PHOTOPHYSICAL STUDY OF SOME NEW PYRENE DERIVATIVES

A series of new pyrene derivatives have been synthesized, and the photophysical properties have been studied by UV-absorption spectra and steady-state fluorescence spectra. The results show that the substitute alkyl group in pyrene-like derivative weakly perturbs the symmetry of the-electron cloud, which. leads to a structural loss or partial structural loss of the fluorescence spectrum of pyrene, while the substitute carbonyl group in pyrenoyl-like derivative has a large inductive effect and a mesomeric effect which cause a strong dependence of fluorescence and absorption spectra on the medium properties.