School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China.
Shandong Xinfa Ruijie New Material Co. Ltd., Liaocheng 252000, China.
Molecules. 2023 Mar 23;28(7):2891. doi: 10.3390/molecules28072891.
In recent years, the [2.2]paracyclophane (PCP) ring has attracted extensive attention due to its features of providing not only chirality and electron-donating ability but also steric hindrance, which reduces intermolecular π-π stacking interactions and thereby improves the fluorescence properties of dyes. To date, some circularly polarized luminescence (CPL)-active small organic molecules based on the PCP skeleton have been reviewed; however, the application of the PCP ring in improving the photophysical properties of fluorescent dyes is still limited, and new molecular design strategies are still required. This review summarizes and promotes the application of PCP in fluorescent dye design, fluorescence detection, and CPL modulation. We expect that this review will provide readers with a comprehensive understanding of the PCP skeleton and lead to further improvement in fluorescent dye design.
近年来，[2.2]环蕃（PCP）环因其不仅提供手性和给电子能力，而且提供空间位阻的特点而受到广泛关注，这减少了分子间的π-π堆积相互作用，从而改善了染料的荧光性质。迄今为止，已经综述了一些基于 PCP 骨架的圆偏振发光（CPL）活性小分子；然而，PCP 环在改善荧光染料的光物理性质方面的应用仍然有限，仍然需要新的分子设计策略。本综述总结并促进了 PCP 在荧光染料设计、荧光检测和 CPL 调制中的应用。我们期望本综述将为读者提供对 PCP 骨架的全面了解，并导致进一步改进荧光染料设计。
