【摘要】 通过苯并咪唑-5,6-二羧酸和间氨基苯磺酸的缩合得到有机物3-(5,7-dioxoimidazo[4,5-f]isoindol-6(1H,5H,7H)-yl) benzenesulfonic acid(DIBS)，进而通过在不同温度下重结晶获得2种固态相：DIBS(10℃)和DIBS(60℃)。DIBS(10℃)具有寿命为721.55 ms的绿色室温磷光，而DIBS(60℃)的黄绿色余辉由寿命分别为259.78和336.33 ms的延迟荧光和室温磷光组成。2种相的不同发光行为可归因于DIBS分子在2种相中不同的构型及堆积结构。有趣的是，在研磨或加热刺激下，DIBS(10℃)可转变为DIBS(60℃)，显示出罕见的余辉刺激响应行为。更多还原

【Abstract】 A new organic compound 3-(5,7-dioxoimidazo[4,5-f ]isoindol-6(1H,5H,7H)-yl) benzenesulfonic acid(DIBS) was synthesized by condensation of benzimidazo-5,6-dicarboxylic acid and m-aminobenzene sulfonic acid.Then two solid phases,DIBS(10℃)andDIBS(60℃),were obtained by recrystallization at different temperatures.DIBS(10℃)had green room temperature phosphorescence with a lifetime of 721.6 ms,while the yellow-green afterglow ofDIBS(60℃)consisted of delayed fluorescence and room temperature phosphorescence with lifetimes of259.8 and 336.3 ms,respectively.The different luminescence behaviors of the two phases can be attributed to the different conformations and stacking structures of DIBS molecules in the two phases.Interestingly,DIBS(10℃)could be transformed intoDIBS(60℃)under grinding or heating stimulation,showing rare afterglow stimulus-response behavior.CCDC:2246368,DIBS(10℃);2246369,DIBS(60℃).更多还原