Search

Despite the great progress in research on molecular carbons containing multiple helicenes around one core, realizing the stereoselectivity of carbons containing multiple helicenes around more cores is still a great challenge. Herein, molecular carbon C204 featuring 12‐fold [5]helicenes around four cores was successfully constructed by using nine perylene diimide (PDI) units, and exhibits good solubility and stability. Despite 256 possible stereoisomers caused by the 12‐fold [5]helicenes, we only obtained one pair of enantiomers with D3 symmetry. There are four possible pairs of enantiomers with D3 symmetry, namely 7A, 7B, 7C and 7D. Theoretical and experimental results verify that the obtained structure belongs to 7C, which has the lowest energy. The enantiomers can also be separated by chiral HPLC. These results suggest that choosing PDIs as building blocks can not only improve the solubility and stability but also realize the stereoselectivity and chirality of molecular carbons. [ABSTRACT FROM AUTHOR]

A molecule is shown in the middle, surrounded by the building blocks of perylene diimides and benzenes. Chirality, Helicene, Molecular Carbon, Stereoisomers, Stereoselectivity Keywords: Chirality; Helicene; Molecular Carbon; Stereoisomers; Stereoselectivity EN Chirality Helicene Molecular Carbon Stereoisomers Stereoselectivity 1 1 1 01/02/23 20230102 NES 230102 B Molecular carbon imides b featuring 12-fold [5]helicenes around four cores are reported by Guogang Liu, Yan Li, Zhaohui Wang et al. in their Research Article (e20224769). [Extracted from the article]

Molecular carbon imides featuring 12‐fold [5]helicenes around four cores are reported by Guogang Liu, Yan Li, Zhaohui Wang et al. in their Research Article (e20224769). A molecule is shown in the middle, surrounded by the building blocks of perylene diimides and benzenes. [ABSTRACT FROM AUTHOR]