The dynamic, size-dependent properties of –cycloparaphenylenes
[n]Cycloparaphenylenes (or “carbon nanohoops”) are cyclic fragments of carbon nanotubes that consist of n para linked benzene rings. These strained, all sp2 hybridized macrocycles, have size-dependent optical and electronic properties that are the most dynamic at the smallest size regime where n = 5–12. This review highlights the unique physical phenomena surrounding this class of polycyclic aromatic hydrocarbons, specifically emphasizing the novel structural, optical, and electronic properties of –CPPs.
- This article is part of the themed collection: Challenges in Aromaticity: 150 Years after Kekulé’s Benzene