Phenalenyl radical: Smallest polycyclic odd alternant hydrocarbon present in the graphene sheet

J Ahmed, SK Mandal - Chemical Reviews, 2022 - ACS Publications
Phenalenyl, a zigzag-edged odd alternant hydrocarbon unit can be found in the graphene
nanosheet. Hückel molecular orbital calculations indicate the presence of a nonbonding …

Synthetic Tailoring of graphene nanostructures with zigzag‐edged topologies: progress and perspectives

J Liu, X Feng - Angewandte Chemie International Edition, 2020 - Wiley Online Library
Experimental and theoretical investigations have revealed that the chemical and physical
properties of graphene are crucially determined by their topological structures. Therefore …

Biphenylene network: A nonbenzenoid carbon allotrope

Q Fan, L Yan, MW Tripp, O Krejčí, S Dimosthenous… - Science, 2021 - science.org
The quest for planar sp2-hybridized carbon allotropes other than graphene, such as
graphenylene and biphenylene networks, has stimulated substantial research efforts …

Scalable synthesis and characterization of multilayer γ-graphyne, new carbon crystals with a small direct band gap

VG Desyatkin, WB Martin, AE Aliev… - Journal of the …, 2022 - ACS Publications
γ-Graphyne is the most symmetric sp2/sp1 allotrope of carbon, which can be viewed as
graphene uniformly expanded through the insertion of two-carbon acetylenic units between …

Portraits of soot molecules reveal pathways to large aromatics, five-/seven-membered rings, and inception through π-radical localization

LA Lieske, M Commodo, JW Martin, K Kaiser… - ACS …, 2023 - ACS Publications
Incipient soot early in the flame was studied by high-resolution atomic force microscopy and
scanning tunneling microscopy to resolve the atomic structure and orbital densities of single …

Polycyclic aromatic hydrocarbon-based organic semiconductors: ring-closing synthesis and optoelectronic properties

Q Li, Y Zhang, Z **e, Y Zhen, W Hu… - Journal of Materials …, 2022 - pubs.rsc.org
Polycyclic aromatic hydrocarbons (PAHs) as a typical class of organic semiconductors
demonstrate unique optical, electrical, magnetic and other interesting properties due to their …

Synthesis of a Dicyclohepta[a,g]heptalene‐Containing Polycyclic Conjugated Hydrocarbon and the Impact of Non‐Alternant Topologies

J Wang, FG Gámez, J Marín‐Beloqui… - Angewandte …, 2023 - Wiley Online Library
Incorporating non‐hexagonal rings into polycyclic conjugated hydrocarbons (PCHs) can
significantly affect their electronic and optoelectronic properties and chemical reactivities …

Construction of heptagon‐containing molecular nanocarbons

Chaolumen, IA Stepek, KE Yamada… - Angewandte Chemie …, 2021 - Wiley Online Library
Molecular nanocarbons containing heptagonal rings have attracted increasing interest due
to their dynamic behavior, electronic properties, aromaticity, and solid‐state packing …

Breathing new life into nonalternant hydrocarbon chemistry: Syntheses and properties of polycyclic hydrocarbons containing azulene, pentalene, and heptalene …

A Konishi, M Yasuda - Chemistry Letters, 2021 - academic.oup.com
Abstract Azulene 1, pentalene 2, and heptalene 3 are classical nonalternant hydrocarbons.
Their fascinating π-frameworks, consecutive arrangements of odd-membered carbocycles …

Synthesis of defective nanographenes containing joined pentagons and heptagons

Y Fei, J Liu - Advanced Science, 2022 - Wiley Online Library
Defective nanographenes containing joined pentagons and heptagons exhibit striking
physicochemical properties from both experimental and theoretical perspectives compared …