Coronene‐Based 2D Networks by On‐Surface Skeletal Rearrangement of Sumanene Precursors DOI Creative Commons
Elena Pérez‐Elvira, Ana Barragán, Aurelio Gallardo

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 28, 2024

Abstract The design of novel low‐dimensional carbon materials is at the forefront modern chemistry. Recently, on‐surface covalent synthesis has emerged as a powerful strategy to synthesize previously precluded compounds and polymers. Here, we report scanning probe microscopy study, complemented by theoretical calculations, on sequential skeletal rearrangement sumanene‐based precursors into coronene‐based organometallic network stepwise intra‐ inter‐molecular reactions Au(111). Interestingly, upon higher annealing, formed networks evolve two‐dimensional covalently linked patches through intermolecular homocoupling reactions. A new reaction mechanism proposed based role C−Au−C motifs promote two carbon‐carbon couplings form cyclobutadiene bridges. Our results pave avenues for conversion molecular surfaces, affording unexplored materials.

Language: Английский

Polyimide-based thermal rearranged (TR) membrane for highly efficient natural gas separation: A review DOI

Mingwei Cai,

Jiongcai Chen,

Huaixu Wang

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 355, P. 129624 - 129624

Published: Sept. 13, 2024

Language: Английский

Citations

5
Competing pathways to aromaticity governed by amine dehydrogenation and metal-organic complexation in on-surface synthesis DOI Creative Commons

Andrés Lombana,

Songpol Chaunchaiyakul, Olivier Chuzel

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: 16(7), P. 3198 - 3210

Published: Jan. 1, 2025

Two distinct reaction pathways are observed on metal surfaces to preserve the dimer aromaticity.

Language: Английский

Citations

0
Twenty Years of Graphene: From Pristine to Chemically Engineered Nano-Sized Flakes DOI Creative Commons
Patricia Izquierdo‐García, Jesús M. Fernández‐García, Nazario Martı́n

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(47), P. 32222 - 32234

Published: Nov. 13, 2024

It is a celebratory moment for graphene! This year marks the 20th anniversary of discovery this amazing material by Geim and Novoselov. Curiously, it coincides with century mark graphite's layered structure discovery. Since graphene promise that its outstanding properties would change world, society often wonders where graphene? In context, their discoverers said in 2005, "despite reigning optimism about graphene-based electronics, "graphenium" microprocessors are unlikely to appear next 20 years". Today, possibilities endless! can be used photonics, fuel cells, energy storage, artificial intelligence, biomedicine, even cultural heritage or sports. Additionally, electronic have been modified fascinating ways. Bilayer sheets found superconductive when twisted at "magic angle", leading new exciting field research known as "moiré quantum materials" "twistronics". small fragments nanometer sizes undergo confinement effect electrons, affording semiconductive materials applications optoelectronics. Organic synthesis allows preparation molecules graphene-like pattern total control shape size, exhibiting big catalog chiroptical optoelectronic properties. Perspective shows some milestones raised from chemical point view, including functionalization strategies employed chemically modify topology pristine well rising molecular graphenes.

Language: Английский

Citations

3
Coronene‐Based 2D Networks by On‐Surface Skeletal Rearrangement of Sumanene Precursors DOI Creative Commons
Elena Pérez‐Elvira, Ana Barragán, Aurelio Gallardo

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 28, 2024

The design of novel low-dimensional carbon materials is at the forefront modern chemistry. Recently, on-surface covalent synthesis has emerged as a powerful strategy to synthesize previously precluded compounds and polymers. Here, we report scanning probe microscopy study, complemented by theoretical calculations, on sequential skeletal rearrangement sumanene-based precursors into coronene-based organometallic network stepwise intra- inter-molecular reactions Au(111). Interestingly, upon higher annealing, formed networks evolve two-dimensional covalently linked patches through intermolecular homocoupling reactions. A new reaction mechanism proposed based role C-Au-C motifs promote two carbon-carbon couplings form cyclobutadiene bridges. Our results pave avenues for conversion molecular surfaces, affording unexplored materials.

Language: Английский

Citations

1
Coronene‐Based 2D Networks by On‐Surface Skeletal Rearrangement of Sumanene Precursors DOI Creative Commons
Elena Pérez‐Elvira, Ana Barragán, Aurelio Gallardo

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 28, 2024

Abstract The design of novel low‐dimensional carbon materials is at the forefront modern chemistry. Recently, on‐surface covalent synthesis has emerged as a powerful strategy to synthesize previously precluded compounds and polymers. Here, we report scanning probe microscopy study, complemented by theoretical calculations, on sequential skeletal rearrangement sumanene‐based precursors into coronene‐based organometallic network stepwise intra‐ inter‐molecular reactions Au(111). Interestingly, upon higher annealing, formed networks evolve two‐dimensional covalently linked patches through intermolecular homocoupling reactions. A new reaction mechanism proposed based role C−Au−C motifs promote two carbon‐carbon couplings form cyclobutadiene bridges. Our results pave avenues for conversion molecular surfaces, affording unexplored materials.

Language: Английский

Citations

0