Construction of an Artificial Light-Harvesting System with Photocatalytic Activity Based on Nor-seco-cucurbit10uril in Aqueous Solution

A supramolecular assembly was constructed based on the tetraphenylethylene derivatives (TPEs) and nor-seco-cucurbit10uril (ns-Q10). Upon introduction of the dye Rhodamine B (RB) into the TPEs@ns-Q10 assembly, an energy transfer process can occur from the TPEs@ns-Q10 assembly to RB. Moreover, after the addition of Nile Red (NiR), a two-step sequential energy transfer process from the TPEs@ns-Q10 assembly to RB and then to NiR can occur. Additionally, the dye Eosin Y (ESY) was introduced into the TPEs@ns-Q10 assembly and an energy transfer process can take place from the TPEs@ns-Q10 assembly to ESY. To utilize the harvested energy from the TPEs@ns-Q10-RB-NiR and TPEs@ns-Q10-ESY system, we applied the TPEs@ns-Q10 assembly-based light-harvesting systems (LHSs) as a catalyst for the advancement of the photocatalytic dehalogenation reaction in aqueous solution. When promoted with 0.5 mol % catalyst, the reaction yield reached 78 and 68%, demonstrating the promising potential of TPEs@ns-Q10 assembly-based LHSs in the promotion of the photocatalytic dehalogenation reaction.