The development of non‐covalent synthetic strategy to fabricate efficient photocatalysts is of great importance in theranostic and organic materials. Herein, a fluorochrome N,N′‐dimethyl 2,5‐bis(4‐pyridinium)thiazolo[5,4‐d]thiazolediiodide (MPT) was transformed into an efficient photocatalyst through supramolecular dimerization in the cavity of cucurbit[8]uril (CB[8]). The host‐enhanced charge transfer interaction within the supramolecular dimer 2MPT‐CB[8] dramatically promoted intersystem crossing to produce triplet. In addition, the staggered conformation of 2MPT‐CB[8] facilitated the energy transfer and electron transfer of the triplet. As a result, 2MPT‐CB[8] could serve as a high‐efficiency photocatalyst for the oxidative hydroxylation of arylboronic acids. This supramolecular dimerization strategy enriches the supramolecular engineering of functional π‐systems. It is anticipated that this strategy can be extended to fabricate various π‐systems with tailor‐made functions.

中文翻译：

---

将荧光染料转变为用于氧化羟基化的高效光催化剂：基于主体增强电荷转移的超分子二聚策略

开发非共价合成策略以制备有效的光催化剂在天然和有机材料中非常重要。在这里，荧光色素N，N'-二甲基2,5-双（4-吡啶）噻唑[5,4-d]噻唑二碘化物（MPT）通过葫芦腔中的超分子二聚作用转化为高效的光催化剂[8] uril （CB [8]）。超分子二聚体2MPT-CB [8]中的宿主增强的电荷转移相互作用极大地促进了系统间的穿越，从而产生了三重态。此外，2MPT-CB的交错构象[8]促进了三重态的能量转移和电子转移。结果，2MPT-CB [8]可以作为芳基硼酸氧化羟基化的高效光催化剂。这种超分子二聚化策略丰富了功能性π系统的超分子工程学。可以预期，该策略可以扩展到制造具有定制功能的各种π系统。