Topologically Chiral Nanohoops

Key words

topological chirality - paracyclophane - carbon nanohoops

Significance

As a novel chiral element, topological chirality has expanded the research and application horizon of related functional materials. While synthetic strategies for the non-conjugated counterparts have been widely investigated, methods for conjugated structures of topological chirality are relatively less explored. Herein, two isomeric nanohoops of conjugated backbone are constructed by harnessing [2.2]paracyclophane as the hinge unit.

Comment

Introducing different silyl protective groups regiospecifically to the central chiral paracyclophane is crucial to the subsequent site-specific ring closure and achievement of the topological chirality. The inherent difference in the structural topology exhibited by the two isomers results in their distinct chiral traits and chiroptical properties.

Publication History

Article published online:
14 July 2023