Syntheses and Optical Properties of BODIPY Derivatives Based on Imidazo[1,5-<i>a</i>]pyridine
作者:Jinfa Hu、Yu Li、Yuxiao Wu、Wei Liu、Yong Wang、Yahong Li
DOI:10.1246/cl.150133
日期:2015.5.5
A series of covalently linked dyads 3a–3e incorporating imidazo[1,5-a]pyridine derivatives with boron dipyrromethene (BODIPY) fragment have been synthesized by a concise procedure. The absorptions with high molar extinction coefficient for 3a–3e have been obtained in CH2Cl2 solution. With substituent groups of different electronic nature at the 3-position of imidazo[1,5-a]pyridine moiety, the emission maxima of dyads 3a–3e change from yellow to red at solid state under ambient conditions.
本研究采用简洁的程序合成了一系列共价连接的二元化合物 3a-3e,其中包含咪唑并[1,5-a]吡啶衍生物和二吡咯烷硼(BODIPY)片段。在 CH2Cl2 溶液中,3a-3e 得到了具有高摩尔消光系数的吸收。由于咪唑并[1,5-a]吡啶分子 3 位上的取代基具有不同的电子性质,因此在环境条件下,3a-3e 的固态发射最大值由黄色变为红色。