Multiple photoluminescence, which included monomer emission, excimer emission, and charge‐transfer emission processes, has been observed from new pyrene‐fused hexaarylbenzene (HAB) compounds, which were synthesized in high yields through a Diels–Alder reaction between bis(2‐tert‐butylpyren‐6‐yl)acetylene and tetraphenylcyclopentadienone. Although the differentiation between the two molecules only arose from the geometrical position of one of the pyrenes, the NMR spectra, crystal packing, and physicochemical properties of these pyrene‐based HAB hybrids were distinctly different in both the solution and aggregate states. X‐ray diffraction analysis clearly indicated that the pyrene moieties adopted different crystal packing arrangements in the crystalline state that could induce a multiple‐photoluminescence phenomenon.

中文翻译：

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含‐的六芳基苯具有聚集增强发射特性的多重光致发光

从new结合的六芳基苯（HAB）化合物中观察到了多种光致发光，其中包括单体发射，受激准分子发射和电荷转移发射过程，这些化合物是通过bis（2-叔丁基之间的Diels-Alder反应）高产率合成的-丁基吡啶-6-基）乙炔和四苯基环戊二烯酮。尽管两个分子之间的区别仅是由一个one的几何位置引起的，但是这些基于pyr的HAB杂化物的NMR光谱，晶体堆积和理化性质在溶液状态和聚集状态均明显不同。X射线衍射分析清楚地表明，the部分在晶态下采用了不同的晶体堆积排列，这可能引起多重光致发光现象。