ArticleNature chemistry2022
Planar π-extended cycloparaphenylenes featuring an all-armchair edge topology.
Article in Nature chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
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- Probing weak chemical interactions of metal surface atoms with CO-terminated AFM tips identifies molecular adsorption sites.Nature communications · 2025Article
- Piercing Molecular Graphenes: Precision Synthesis and Photophysics of NBN-Edged Porous Molecular Carbons.Journal of the American Chemical Society · 2025Article
- Distance and Voltage Dependence of Orbital Density Imaging Using a CO-Functionalized Tip in Scanning Tunneling Microscopy.ACS nano · 2025Article
- Room-temperature selective cyclodehydrogenation on Au(111) via radical addition of open-shell resonance structures.Nature communications · 2024Article
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- Recent progress in on-surface synthesis of nanoporous graphene materials.Communications chemistry · 2024Review
- On-surface synthesis of nitrogen-doped nanographene with an [18]annulene pore on Ag(111).Communications chemistry · 2023Article
- Orbital-symmetry effects on magnetic exchange in open-shell nanographenes.Nature communications · 2023Article
- On-surface synthesis of enetriynes.Nature communications · 2023Article
- On-surface synthesis of planar π-extended [12]cycloparaphenylene.Communications chemistry · 2022Article
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Authors and funding
11 authors.
Funding
Abstract
The [n]cycloparaphenylenes ([n]CPPs)-n para-linked phenylenes that form a closed-loop-have attracted substantial attention due to their unique cyclic structure and highly effective para-conjugation leading to a myriad of fascinating electronic and optoelectronic properties. However, their strained topology prevents the π-extension of CPPs to convert them either into armchair nanobelts or planarized CPP macrocycles. Here we successfully tackle this long-standing challenge and present the bottom-up synthesis and characterization of atomically precise in-plane π-extended [12]CPP on Au(111) by low-temperature scanning probe microscopy and spectroscopy combined with density functional theory. The planar π-extended CPP is a nanographene with an all-armchair edge topology. The exclusive para-conjugation at the periphery yields delocalized electronic states and the planarization maximizes the overlap of p orbitals, which both reduce the bandgap compared to conventional CPPs. Calculations predict ring currents and global aromaticity in the doubly charged system. The intriguing planar ring topology and unique electronic properties make planar π-extended CPPs promising quantum materials.
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Registered trials
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