Iptycene is a class of 3D, rigid, and arene‐rich frameworks and has been incorporated into photoactive π‐systems for a variety of purposes, including tuning interchromophore interactions and thus the luminescence properties, creating active sites for excited‐state host–guest interactions, controlling the planarity of the π‐backbone for exciton delocalization activity, serving as a template for gating the charge/electron/energy‐transfer or intersystem crossing efficiency, generating structural chirality for chiroptical properties, and acting as a multiblade rotator in photoresponsive molecular devices. This Review outlines these concepts with examples reported over the past two decades.

中文翻译：

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光致发光和光响应性茂茂并入π共轭体系：基本原理和应用

茂茂橡胶是一类3D，刚性且富含芳烃的骨架，已被引入光敏π系统中以用于多种目的，包括调节发色团之间的相互作用以及发光性质，从而为激发态的主客体相互作用创建活性位点，控制π骨干用于激子离域活动的平面性，用作控制电荷/电子/能量转移或系统间交叉效率的模板，生成用于手性的结构手性以及在光响应分子设备中充当多叶片旋转器。这篇综述概述了这些概念，并举例说明了过去二十年中的案例。