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Interactions between lone pairs and aromatic π systems are significant across biology and self‐assembled materials. Herein, employing an achiral confinement metal–organic framework (MOF) encapsulates guest molecules, it is successfully realized that lone pair (lp)‐π interaction induces fluorescence "turn‐on" and circularly polarized luminescence for the first time. The MOFs synthesized based on naphthalenediimide show nearly non‐emissive, which can be light‐up by introducing acetone or ester guests containing lone pairs‐π interaction. Furthermore, the introduction of a series of lp‐rich chiral esters induces supramolecular chirality as well as circularly polarized luminescence in achiral MOFs, while also observing chiral adaptability. This work first demonstrates the luminescence and chiral induction via lone pair electrons‐π interactions, presenting a fresh paradigm for the advancement of chiroptical materials. [ABSTRACT FROM AUTHOR]

The photophysical and chiroptical properties of a chiral biquinoline amphiphile were found to be closely related to its aggregate states. Photochromism through photo-induced radical and circularly polarized luminescence were realized in its gel state and thin film state, respectively. [ABSTRACT FROM AUTHOR]

By constructing a supramolecular light‐harvesting chiral nanotube in the aqueous phase, we demonstrate a cooperative energy and chirality transfer. It was found that a cyanostilbene‐appended glutamate compound (CG) self‐assembled into helical nanotubes exhibiting both supramolecular chirality and circularly polarized luminescence (CPL). When two achiral acceptors, ThT and AO, with different energy bands were co‐assembled with the nanotube, the CG nanotube could transfer its chirality to both of the acceptors. The excitation energy could be transferred to ThT but only be sequentially transferred to AO. During this process, the CPL ascribed to the acceptor could be sequentially amplified. This work provides a new insight into the understanding the cooperative chirality and energy transfer in a chiral supramolecular system, which is similar to the natural light‐harvesting antennas. On the other hand: When the achiral acceptors thioflavin T (ThT) and acridine orange (AO), with different energy bands, were co‐assembled with the nanotube CG it could transfer its chirality to both of the acceptors to give an enhancement of acceptor circularly polarized luminescence (CPL). The excitation energy could be transferred to ThT but only be sequentially transferred to AO. [ABSTRACT FROM AUTHOR]

The asymmetric reaction is one of the most important reactions in organic synthesis. While a large number of efficient molecular catalysts have been developed and applied, recently, supramolecular and nanostructured catalysts have been attracting interest. In this Minireview, we focus on self-assembled chiral nanostructures and review their possibility and feasibility as enantioselective catalysts. The design concept and the requirement of the chiral scaffold as the catalysts are discussed. Based on the chirality and catalytic performance of the building molecules and the supramolecular nanostructures, the nanocatalyst is divided into chiral nanostructure driven (CND) and chiral nanostructure enhanced (CNE) enantioselective catalysts. Then, several typical self-assembled chiral nanostructures such as nanocages, nanotubes, nanorods, micelles and vesicles are selected as the chiral scaffold and their catalytic behaviors for the asymmetric reactions were demonstrated. Finally, the future developments of the field are also discussed. [ABSTRACT FROM AUTHOR]

The phosphine-free ruthenium complex containing chi-ral N-(p-toluenesulfonyl)-1,2-diphenylethylenediamine (TsDPEN) showed excellent stereoselectivity in the tandem asymmetric reduction of 2-(aroylmethyl)quinolines. The reaction involves transfer hydrogenation of aromatic ketones and hydrogenation of quinolines, giving 1,2,3,4-tetrahydroquinoline derivatives with up to 99% ee and 95:5 dr. [ABSTRACT FROM AUTHOR]

The realization of persistent luminescence and in particular circularly polarized luminescence (CPL) of organic radicals remains a challenge due to their sensitivity to oxygen at ambient conditions and elusive excited state chirality control. Here, it is reported that UV‐irradiation on a supramolecular gel from a chiral triarylamine derivative, TPA‐Ala, led to the formation of luminescent radicals with bright CPL. TPA‐Ala can form an organogel in chloroform with blue emission and supramolecular chirality as demonstrated by both CD and CPL signals. Upon UV 365 nm irradiation, an emission color change from blue to cyan is observed due to the formation of photo‐induced radicals. Interestingly, it is found that the supramolecular gel radicals showed stable luminescence with a lifetime ≈ 10 days in dark environments and inverted CPL, which represents a scarce example with persistent CPL from doublet‐state due to oxygen isolation ability of the gel network. Furthermore, doping a guest dye, Rhodamine B (RhB), into the supramolecular gel (RhB/TPA‐Ala = 30% in molar ratio) successfully obtained a transient white‐light CPL through the superposition of photo‐induced radical and guest dye emissions. This work provides a useful methodology for the fabrication of radical‐based CPL materials via a supramolecular assembly approach. [ABSTRACT FROM AUTHOR]