A new tetraphenylethylene (TPE) functionalized 1,4-dihydropyrrolo[3,2-b]pyrrole derivative (APPTPECN) was synthesized with obvious aggregation-induced emission (AIE) active by simple synthetic method. APPTPECN exhibited reversible mechanofluorochromic (MFC) behavior. The powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM) investigations exhibited that the MFC nature is originated through a conversion from the microcrystalline to amorphous phase under the stimulus of external force. The results obtained would be of major help in understanding the MFC mechanism and designing new MFC materials. Compound APPTPECN has the potential possibility to employ in rewritable data storage and is of assistance in the rational design of smart luminescent materials.

中文翻译：

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具有可重写数据存储功能的带有四苯基亚乙基的AIE活性1,4-二氢吡咯并[3,2-b]吡咯发光体的机械响应材料。

通过简单的合成方法，合成了具有明显聚集诱导发射（AIE）活性的新型四苯基乙烯（TPE）功能化的1,4-二氢吡咯并[3,2-b]吡咯衍生物（APPTPECN）。APPTPECN表现出可逆的mechanofluorochromic（MFC）行为。粉末X射线衍射（PXRD）和扫描电子显微镜（SEM）研究表明，MFC的性质是通过在外力的刺激下从微晶相转变为非晶相而产生的。获得的结果将对理解MFC机理和设计新的MFC材料有重要帮助。复合APPTPECN具有可擦写数据存储的潜在可能性，并且有助于智能发光材料的合理设计。