Two tetraphenylethene-based tetracationic dicyclophanes 1 and 2 were synthesized via a one-step SN2 reaction. Based on the central TPE unit and the slight difference of the outer linkers, 1 and 2 exhibited a classic aggregation-induced emission but contrasting mechanochromic luminescence under grinding, vaporing, or hydrostatic pressure in the solid state, and photochemical reactions with various emitting colours induced by photoirradiation in the solution state.

中文翻译：

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基于四苯乙烯的四阳离子双环酮：合成，机械变色发光和光化学反应。

通过一步SN2反应合成了两个基于四苯乙烯的四阳离子二环酮1和2。基于中央TPE单元和外部连接子的细微差异，1和2表现出经典的聚集诱导发射，但在固态下处于研磨，汽化或静水压力下，机械致变色发光形成对比，并且诱发了各种发光颜色的光化学反应通过在溶液状态下的光辐照。