新型芳并吡喃类多环化合物的合成与光谱性质研究

Synthesis and Optical Properties of Novel Aryl-fused Pyran-containing Polycyclic Compounds

本文设计并经由分子内碳-碳偶联反应合成了一系列基于芳并吡喃供电子功能片段的有机功能小分子,包括萘并[2,1-b：6,5-b’]二苯并吡喃4a,萘并[2,1-b：6,5-b’]二萘并吡喃4b,萘并[2,1-b：6,5-b’]二[2-（5-己基噻吩基）]苯并吡喃4c。通过紫外光谱和荧光光谱研究表明,这类化合物在370～400 nm波长范围内具有最大紫外吸收,在417～462 nm波长范围内具有最大荧光发射。说明随着共轭平面的增大或共轭链长度的增加,化合物的吸收和荧光光谱均发生显著的红移,是一类具有丰富光电活性的有机功能分子。

A series of functional small organic molecules based on electron-donating aryl-fused pyran functional motifs have been designed and synthesized by intramolecular carbon- carbon coupling reaction,including naphtho[2,1-b：6,5-b＇]bisbenzopyran 4a,naphtho[2,1-b：6,5-b＇]bisnaphthopyran 4b,naphtho[2,1-b：6,5-b＇]bis[2-（5-hexyl thienyl）]benzopyran 4c.Their UV-Vis spectra showed the maxima absorption at 370-400 nm,and their fluorescence spectra exhibited the maxima emission in the range of 417-462 nm.The increasing of conjugated plane or conjugated chain length in these compounds caused remarkable red shifts in both of their absorption and emission spectra,indicative of their rich optical properties.