We describe the role of chalcogen variation (O, S, Se and Te) on the photoluminescence properties of ether‐based luminophores showing aggregation‐induced fluorescence and phosphorescence. To this end, a library of eleven different compounds with varying substitution patterns was synthesized and analyzed in terms of their photophysical properties. Ortho‐ and tetra‐ selenoethers revealed remarkable phosphorescence properties. To the best of our knowledge, these are one of the first phosphorescent organic selenium‐containing compounds featuring AIE properties. Besides photophysical investigations, X‐ray diffractometric analyses were performed, yielding the molecular structures of nine compounds in a crystalline environment, facilitating a direct correlation between the packing and the emission performances. All experimental results were supported by quantum chemical calculations providing an in‐depth understanding of the role of chalcogens within this class of compounds.

中文翻译：

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通过聚集诱导的荧光和磷光了解硫族元素在基于醚的发光体中的作用

我们描述了硫族元素的变化（O，S，Se和Te）在基于醚的发光体的光致发光特性中的作用，表现出聚集诱导的荧光和磷光。为此，合成了11种具有不同取代模式的不同化合物的库，并根据其光物理性质对其进行了分析。邻和四硒醚显示出显着的磷光特性。据我们所知，它们是具有AIE特性的首批含磷光有机硒化合物之一。除光物理研究外，还进行了X射线衍射分析，得到了晶体环境中9种化合物的分子结构，从而促进了堆积与发射性能之间的直接关联。所有实验结果均得到量子化学计算的支持，从而深入了解了硫族元素在此类化合物中的作用。