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Related papers: On-surface synthesis of polyazulene with 2,6-conne…

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Large aromatic carbon nanostructures are cornerstone materials due to their increasingly active role in functional devices, but their synthesis in solution encounters size and shape limitations. New on-surface strategies facilitate the…

Polycyclic hydrocarbons have received great attention due to their potential role in organic electronics and, for open-shell systems with unpaired electron densities, in spintronics and da-ta storage. However, the intrinsic instability of…

Triangulenes are open-shell triangular graphene flakes with total spin increasing with their size. In the last years, on-surface-synthesis strategies have permitted fabricating and engineering triangulenes of various sizes and structures…

Nitrogen heteroatom doping into a triangulene molecule allows tuning its magnetic state. However, the synthesis of the nitrogen-doped triangulene (aza-triangulene) has been challenging. Herein, we report the successful synthesis of…

Fusion of three benzene rings in a triangular fashion gives rise to the smallest open-shell graphene fragment, the phenalenyl radical, whose ${\pi}$-extension leads to an entire family of non-Kekul\'e triangular nanographenes with high-spin…

Mesoscale and Nanoscale Physics · Physics 2023-08-30 Elia Turco , Annika Bernhardt , Nils Krane , Leoš Valenta , Roman Fasel , Michal Juríček , Pascal Ruffieux

The assembly of molecules to form covalent networks can create varied lattice structures with distinct physical and chemical properties from conventional atomic lattices. Using the smallest stable [5,6]fullerene units as building blocks,…

Materials Science · Physics 2025-03-27 Jiaqi Wu , Bo Peng

Methylated polycyclic aromatic hydrocarbons (PAHs) have been hypothesised to be present in the interstellar medium (ISM) through their 3.4 and 6.9 $\mu$m absorption bands. To investigate the hydrogenation of these methylated PAHs, the…

Astrophysics of Galaxies · Physics 2026-02-11 A. T. Hopkinson , F. G. Doktor , J. Pitfield , M. Moll , J. D. Thrower , L. Hornekær

We consider collisional properties of polyatomic aromatic hydrocarbon molecules immersed into ultracold atomic gases and investigate intermolecular interactions of exemplary benzene, naphthalene, and azulene with alkali-metal (Li, Na, K,…

Chemical Physics · Physics 2019-06-28 Paweł Wójcik , Tatiana Korona , Michał Tomza

This paper reports on the one-pot synthesis of main-chain imidazolium-containing polymers, some of which show unusually high thermal stability. The imidazolium polymers were obtained by modified Debus-Radziszewski reactions for the chain…

Soft Condensed Matter · Physics 2017-05-12 Konrad Grygie , Sarah Kirchhecker , Jiang Gong , Markus Antonietti , Davide Esposito , Jiayin Yuan

Existence of heteroaromatic graphene analog is predicted based upon periodic first principles density functional theory calculations. The new material, poly 1,5-dihydro 1,5-diazocine diazene, is a monolayered aromatic (planar) cross-linked…

Materials Science · Physics 2010-03-26 R. Kevorkyants , V. Ligatchev , P. Wu

Organic functionalization of graphene is successfully performed via 1,3-dipolar cycloaddition of azomethine ylide in the liquid phase. The comparison between 1-methyl-2-pyrrolidinone and N,N-dimethylformamide as dispersant solvents, and…

Phosphorene, the single- or few-layer form of black phosphorus, was recently rediscovered as a twodimensional layered material holding great promise for applications in electronics and optoelectronics. Research into its fundamental…

Materials Science · Physics 2015-06-19 Liangzhi Kou , Changfeng Chen , Sean C. Smith

We report a multi-step on-surface synthesis strategy. The first step consists in the surface-supported synthesis of metal-organic complexes, which are subsequently used as catalysts to steer on-surface alkyne coupling reactions. In…

Few-layer black phosphorus (BP), also known as phosphorene, is poised to be the most attractive graphene analogue owing to its high mobility approaching that of graphene, and its thickness- tunable band gap that can be as large as that of…

Materials Science · Physics 2015-03-13 Joon-Seok Kim , Yingnan Liu , Weinan Zhu , Seohee Kim , Di Wu , Li Tao , Ananth Dodabalapur , Keji Lai , Deji Akinwande

We demonstrate how self-assembled monolayers of aromatic molecules on copper substrates can be converted into high-quality single-layer graphene using low-energy electron irradiation and subsequent annealing. We characterize this…

We report the fabrication and characterization of a simple gate-free graphene device as a pH sensor. The graphene sheets are made by mechanical exfoliation. Platinum contact electrodes are fabricated with a mask-free process using focused…

Materials Science · Physics 2012-07-05 Nan Lei , Pengfei Li , Wei Xue , Jie Xu

We have designed and synthesized five azulene derivatives containing gold- binding groups at different points of connectivity within the azulene core to probe the effects of quantum interference through single-molecule conductance…

The recent wave of detections of interstellar aromatic molecules has sparked interest in the chemical behavior of aromatic molecules under astrophysical conditions. In most cases, these detections have been made through chemically related…

Astrophysics of Galaxies · Physics 2021-07-07 April M. Miksch , Annalena Riffelt , Ricardo Oliveira , Johannes Kästner , Germán Molpeceres

By bridging graphene and benzene through a well-defined sequence of polycyclic aromatic hydrocarbons and their inherent shell structure, J. Phys. Chem. C, 2018, 122, 17526, it is shown that graphene is actually a coherent arrangement of…

Chemical Physics · Physics 2020-07-01 Aristides D. Zdetsis

The self-assembly of a single layer of organic molecules on a substrate is a powerful strategy to modify surfaces and interfacial properties. The detailed interplay of molecule-to-substrate and molecule-molecule interactions are crucial for…

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