Controllable chiral inversion via thioether bond-activated J- and H-aggregation transformation. Issue 25 (13th March 2023)

• Record Type: Journal Article
• Authors: He, Huiwen; Zheng, Kai; Du, Junnan; Zheng, Hao; He, Jing; Ma, Meng; Shi, Yanqin; Chen, Si; Wang, Xu
• Is Part Of: Chemical communications. Volume 59:Issue 25(2023)
• Page Start: 3759
• Page End: 3762
• Publication Date: 2023-03-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d3cc00019b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The transfer of inherent chirality from peripheral groups of chiral dendrimers to the supramolecular level could be controlled by thioether bond-activated transformation of J - and H -aggregation, which can be readily achieved by applying ultrasound, densification, or annealing. Abstract : Herein, thioether bonds in the peripheral groups of chiral dendrimer that could activate the transformation between J - and H -aggregation in π-systems and caused controllable chiral inversion are described. Furthermore, owing to the close-knit per-aggregation of dendrimers impeding the transfer of inherent molecular chirality, the inversed chirality could be memorized and transferred from oligomers to nano-helices during self-assembly.