Four triphenylamine or carbazole-based highly emissive solid fluorophores (The maximum quantum yield of 42.43%) of dibenzothiophene sulfones have been successfully prepared and characterized. The solid-state emission behaviors and mechanical stimulus-responsive luminescence characteristics of all these donor-acceptor-donor (D-A-D) type or donor-π-acceptor-π-donor (D-π-A-π-D) type compounds 1–4 were investigated. Interestingly, these fluorophores 1–4 exhibited various solid-state fluorescent colors involving blue (CIE color coordinates of (0.15, 0.09)), blue-green (CIE color coordinates of (0.17, 0.43)), yellow (CIE color coordinates of (0.41, 0.56)) and brown-yellow (CIE color coordinates of (0.50, 0.50)). Furthermore, these dyes 1–4 also exhibited different mechanofluorochromic behaviors. More specifically, luminogens 1–3 showed bathochromic mechanofluorochromic phenomena. However, luminogen 4 showed distinct-different hypsochromic mechanofluorochromic phenomenon. All these observed mechanochromic emission conversions could be repeated for many cycles. Single-crystal X-ray diffraction and powder X-ray diffraction experiments demonstrated that the mechanofluorochromic behaviors of 1–4 were related to the morphology transformation from crystalline state to amorphous state.

已成功制备并表征了四种基于三苯胺或咔唑的高发射率固体荧光团（最大量子产率为42.43％）。所有这些供体-受体-供体（DAD）型或供体-π-受体-π-供体（D-π-A-π-D）型化合物的固态发射行为和机械刺激响应的发光特性1 –共调查了4个。有趣的是，这些荧光团1 - 4显示出涉及蓝色各种固态荧光色（的CIE色坐标（0.15，0.09）），黄色（CIE颜色坐标的蓝绿色（的（0.17，0.43）CIE颜色坐标）（ 0.41，0.56））和棕黄色（CIE颜色坐标为（0.50，0.50））。此外，这些染料1 - 4也表现出不同的行为mechanofluorochromic。更具体地，luminogens 1 - 3种显示红移mechanofluorochromic现象。然而，发光剂4显示出截然不同的七色变色现象。所有这些观察到的机械变色发射转换可以重复许多周期。单晶X射线衍射和X射线粉末衍射实验证实了的mechanofluorochromic行为1 - 4分别与从结晶状态的形态变换至无定形状态。