烯酮类化合物发光行为的研究

A Study on the Luminescence Behaviour of Enone Derivatives

本工作合成了几种带桥键结构的烯酮类化合物,研究了它们的光谱和光物理行为.结果表明那些分子内的双键因桥键化而成环的化合物具有很强的荧光量子产率、相反,那些未桥键化或桥键化而双键未处于环内者则仅有较弱的荧光强度.工作中还观察到该类化合物的“负溶致动力学效应”以及其荧光强度强烈地依赖于所用溶剂极性等现象.对所得结果进行了初步的讨论.

In this work, several intramolecular bridging enone compounds have been synthesized and characterized. It was found that the molecule in which the double bond is bridged to form a ring has very strong fluorescence emission. In contrast, the molecule in which the double bond is not bridged or located outside the bridged ring has very low fluorescence quantum yield. The' negative solvatokinetic effect' and the strong dependence of fluorescence intensity on the solvent polarity for these compounds have also been observed. A preliminary,explana-tion was proposed.