Bottom-Up Synthesis of Metalated Carbyne Ribbons via Elimination Reactions

Gao, Wenze; Cai, Liangliang; Kang, Faming; Shang, Lina; Zhao, Mali; Zhang, Chi; Xu, Wei

doi:10.1021/jacs.2c12292

Cited by 4 publications

(1 citation statement)

References 50 publications

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“…Figure 3h displays the spin-polarized DOS of the free-standing 2D OM network. Intriguingly, the asymmetric DOS for spin-up and spin-down components indicates a spin polarization of the 2D OM network, although the incorporated Cu atoms in the chains are not magnetically active, which is similar to our previous studies 40 , 41 .…”

Section: Resultssupporting

confidence: 88%

Topology selectivity of a conformationally flexible precursor through selenium doping

Cai,

Gao,

Wee

2024

Nat Commun

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Conformational arrangements within nanostructures play a crucial role in shaping the overall configuration and determining the properties, for example in covalent/metal organic frameworks. In on-surface synthesis, conformational diversity often leads to uncontrollable or disordered structures. Therefore, the exploration of controlling and directing the conformational arrangements is significant in achieving desired nanoarchitectures. Herein, a conformationally flexible precursor 2,4,6-tris(3-bromophenyl)−1,3,5-triazine is employed, and a random phase consisting of C3h and Cs conformers is firstly obtained after deposition of the precursor on Cu(111) at room temperature to 365 K. At low coverage (0.01 ML) selenium doping, we achieve the selectivity of the C3h conformer and improve the nanopore structural homogeneity. The ordered two-dimensional metal organic nanostructure can be fulfilled by selenium doping from room temperature to 365 K. The formation of the conformationally flexible precursor on Cu(111) is explored through the combination of high-resolution scanning tunneling microscopy and non-contact atomic force microscopy. The regulation of energy diagrams in the absence or presence of the Se atom is revealed by density functional theory calculations. These results can enrich the on-surface synthesis toolbox of conformationally flexible precursors, for the design of complex nanoarchitectures, and for future development of engineered nanomaterials.

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Section: Resultssupporting

confidence: 88%

Topology selectivity of a conformationally flexible precursor through selenium doping

Cai,

Gao,

Wee

2024

Nat Commun

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On‐Surface Covalent Synthesis of Carbon Nanomaterials by Harnessing Carbon gem‐Polyhalides

Urgel,

Sánchez‐Grande,

Vicent

et al. 2024

Advanced Materials

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The design of innovative carbon‐based nanostructures stands at the forefront of both chemistry and materials science. In this context, π‐conjugated compounds are of great interest due to their impact in a variety of fields, including optoelectronics, spintronics, energy storage, sensing and catalysis. Despite extensive research efforts, substantial knowledge gaps persist in the synthesis and characterization of new π‐conjugated compounds with potential implications for science and technology. On‐surface synthesis has emerged as a powerful discipline to overcome limitations associated with conventional solution chemistry methods, offering advanced tools to characterize the resulting nanomaterials. This review specifically highlights recent achievements in the utilization of molecular precursors incorporating carbon geminal (gem)‐polyhalides as functional groups to guide the formation of π‐conjugated 0D species, as well as 1D, quasi‐1D π‐conjugated polymers, and 2D nanoarchitectures. By delving into reaction pathways, novel structural designs, and the electronic, magnetic, and topological features of the resulting products, the review provides fundamental insights for a new generation of π‐conjugated materials.

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Recent progress on surface chemistry I: Assembly and reaction

Li,

Xu,

et al. 2024

Chinese Chemical Letters

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Bottom-Up Synthesis of Metalated Carbyne Ribbons via Elimination Reactions

Cited by 4 publications

References 50 publications

Topology selectivity of a conformationally flexible precursor through selenium doping

Topology selectivity of a conformationally flexible precursor through selenium doping

On‐Surface Covalent Synthesis of Carbon Nanomaterials by Harnessing Carbon gem‐Polyhalides

Recent progress on surface chemistry I: Assembly and reaction

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