Cationic Nitrogen-Doped Helical Nanographenes
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Herein, we report the design and synthesis of a series of novel cationic nitrogen-doped nanographenes (CNDNs) with nonplanar geometry and axial chirality. Single-crystal X-ray analysis reveals helical and cove-edged structures. Compared to their all-carbon analogues, the frontier orbitals of the CNDNs are energetically lower lying, with a reduced optical energy gap and greater electron-accepting behavior. Cyclic voltammetry shows all the derivatives to undergo quasireversible reductions. In situ spectroelectrochemical studies prove that, depending on the number of nitrogen dopants, either neutral radicals (one nitrogen dopant) or radical cations (two nitrogen dopants) are formed upon reduction. The concept of cationic nitrogen doping and introducing helicity into nanographenes paves the way for the design and synthesis of expanded nanographenes or even graphene nanoribbons with cationic nitrogen dopants.
Details
Original language | English |
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Pages (from-to) | 15876-15881 |
Number of pages | 6 |
Journal | Angewandte Chemie - International Edition |
Volume | 56 |
Issue number | 50 |
Publication status | Published - 11 Dec 2017 |
Peer-reviewed | Yes |
External IDs
Scopus | 85037351448 |
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PubMed | 28902969 |
ORCID | /0000-0001-7323-7816/work/142257362 |
Keywords
ASJC Scopus subject areas
Keywords
- graphene, helicene, nanographene, nitrogen doping, polycyclic aromatic hydrocarbons