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Nanomaterials
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On-Surface Synthesis of Low-Dimensional Organic Nanostructures
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On-Surface Synthesis of Low-Dimensional Organic Nanostructures

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: closed (13 January 2023) | Viewed by 17517

Special Issue Editor

Dr. Carlos Sanchez-Sanchez

E-Mail Website
Guest Editor
CSIC - Instituto de Ciencia de Materiales de Madrid (ICMM), Cantoblanco, Spain
Interests: On-surface Synthesis; low-dimensional organic nanostructures; ultra-high vacuum; STM/STS; photoelectron spectroscopies

Special Issue Information

Dear Colleagues,

On-surface synthesis (OSS) has emerged as a novel approach to synthesize and characterize low-dimensional organic nanomaterials with atomic precision, otherwise unattainable by solution organic chemistry. The possibility to create low-dimensional materials “a la carte” starting from functionalized precursor monomers has opened a new field wherein materials with unprecedented tailored properties can be obtained. The versatility of this methodology has boosted the research in the last decade, and a plethora of organic nanostructures with diverse dimensionality and properties have been reported, from 0D molecules and nanographenes to 1D oligomers and graphene nanoribbons (GNRs) or 2D covalent networks and graphene. In this way, organic nanomaterials exhibiting intriguing semiconducting, magnetic, or even topological properties have been synthesized and characterized.

Although most of the research carried out in the field has a clear fundamental scope, strong efforts are also being devoted to the introduction of these on-surface-synthesized low-dimensional organic materials into prototypical devices thanks to their usual air stability. For example, prototypical transistors or sensors based on these nanomaterials have been fabricated, some of them presenting promising performances.

This Special Issue of Nanomaterials aims to gather some of the most relevant recent advances in the field of On-surface Synthesis of Low-Dimensional Organic Nanostructures, covering not only their bottom-up synthesis and characterization, but also the rationalization of the fundamental reaction mechanisms involved in the processes.

Dr. Carlos Sanchez-Sanchez
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • On-surface synthesis
  • Low-dimensional organic materials
  • Bottom-up
  • Reaction mechanisms
  • Ultra-high vacuum
  • Advanced characterization

Published Papers (5 papers)

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Research

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10 pages, 1672 KiB  
Article
On-Surface Thermal Stability of a Graphenic Structure Incorporating a Tropone Moiety
by Irene R. Márquez, Nerea Ruíz del Árbol, José I. Urgel, Federico Villalobos, Roman Fasel, María F. López, Juan M. Cuerva, José A. Martín-Gago, Araceli G. Campaña and Carlos Sánchez-Sánchez
Nanomaterials 2022, 12(3), 488; https://doi.org/10.3390/nano12030488 - 29 Jan 2022
Cited by 3 | Viewed by 3818
Abstract
On-surface synthesis, complementary to wet chemistry, has been demonstrated to be a valid approach for the synthesis of tailored graphenic nanostructures with atomic precision. Among the different existing strategies used to tune the optoelectronic and magnetic properties of these nanostructures, the introduction of [...] Read more.
On-surface synthesis, complementary to wet chemistry, has been demonstrated to be a valid approach for the synthesis of tailored graphenic nanostructures with atomic precision. Among the different existing strategies used to tune the optoelectronic and magnetic properties of these nanostructures, the introduction of non-hexagonal rings inducing out-of-plane distortions is a promising pathway that has been scarcely explored on surfaces. Here, we demonstrate that non-hexagonal rings, in the form of tropone (cycloheptatrienone) moieties, are thermally transformed into phenyl or cyclopentadienone moieties upon an unprecedented surface-mediated retro–Buchner-type reaction involving a decarbonylation or an intramolecular rearrangement of the CO unit, respectively. Full article
(This article belongs to the Special Issue On-Surface Synthesis of Low-Dimensional Organic Nanostructures)
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9 pages, 1862 KiB  
Article
Defect-Induced π-Magnetism into Non-Benzenoid Nanographenes
by Kalyan Biswas, Lin Yang, Ji Ma, Ana Sánchez-Grande, Qifan Chen, Koen Lauwaet, José M. Gallego, Rodolfo Miranda, David Écija, Pavel Jelínek, Xinliang Feng and José I. Urgel
Nanomaterials 2022, 12(2), 224; https://doi.org/10.3390/nano12020224 - 11 Jan 2022
Cited by 6 | Viewed by 3447
Abstract
The synthesis of nanographenes (NGs) with open-shell ground states have recently attained increasing attention in view of their interesting physicochemical properties and great prospects in manifold applications as suitable materials within the rising field of carbon-based magnetism. A potential route to induce magnetism [...] Read more.
The synthesis of nanographenes (NGs) with open-shell ground states have recently attained increasing attention in view of their interesting physicochemical properties and great prospects in manifold applications as suitable materials within the rising field of carbon-based magnetism. A potential route to induce magnetism in NGs is the introduction of structural defects, for instance non-benzenoid rings, in their honeycomb lattice. Here, we report the on-surface synthesis of three open-shell non-benzenoid NGs (A1, A2 and A3) on the Au(111) surface. A1 and A2 contain two five- and one seven-membered rings within their benzenoid backbone, while A3 incorporates one five-membered ring. Their structures and electronic properties have been investigated by means of scanning tunneling microscopy, noncontact atomic force microscopy and scanning tunneling spectroscopy complemented with theoretical calculations. Our results provide access to open-shell NGs with a combination of non-benzenoid topologies previously precluded by conventional synthetic procedures. Full article
(This article belongs to the Special Issue On-Surface Synthesis of Low-Dimensional Organic Nanostructures)
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8 pages, 1795 KiB  
Article
Band Structure and Energy Level Alignment of Chiral Graphene Nanoribbons on Silver Surfaces
by Martina Corso, Rodrigo E. Menchón, Ignacio Piquero-Zulaica, Manuel Vilas-Varela, J. Enrique Ortega, Diego Peña, Aran Garcia-Lekue and Dimas G. de Oteyza
Nanomaterials 2021, 11(12), 3303; https://doi.org/10.3390/nano11123303 - 6 Dec 2021
Cited by 5 | Viewed by 3233
Abstract
Chiral graphene nanoribbons are extremely interesting structures due to their narrow band gaps and potential development of spin-polarized edge states. Here, we study their band structure on low work function silver surfaces. The use of a curved Ag single crystal provides, within the [...] Read more.
Chiral graphene nanoribbons are extremely interesting structures due to their narrow band gaps and potential development of spin-polarized edge states. Here, we study their band structure on low work function silver surfaces. The use of a curved Ag single crystal provides, within the same sample, regions of disparate step structure and step density. Whereas the former leads to distinct azimuthal growth orientations of the graphene nanoribbons atop, the latter modulates the substrate’s work function and thereby the interface energy level alignment. In turn, we disclose the associated charge transfer from the substrate to the ribbon and assess its effect on the nanoribbon’s properties and the edge state magnetization. Full article
(This article belongs to the Special Issue On-Surface Synthesis of Low-Dimensional Organic Nanostructures)
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9 pages, 3804 KiB  
Article
On-Surface Synthesis of Ligands to Elaborate Coordination Polymers on an Au(111) Surface
by Elie Geagea, Judicael Jeannoutot, Louise Morgenthaler, Simon Lamare, Frank Palmino and Frédéric Chérioux
Nanomaterials 2021, 11(8), 2102; https://doi.org/10.3390/nano11082102 - 19 Aug 2021
Cited by 1 | Viewed by 2643
Abstract
On-surface metal-organic polymers have emerged as a class of promising 2D materials. Here, we propose a new strategy to obtain coordination polymers by transforming supramolecular networks into coordination polymers by surface-assisted cyclo-dehydrogenation of organic building blocks. All nanostructures are fully characterized by using [...] Read more.
On-surface metal-organic polymers have emerged as a class of promising 2D materials. Here, we propose a new strategy to obtain coordination polymers by transforming supramolecular networks into coordination polymers by surface-assisted cyclo-dehydrogenation of organic building blocks. All nanostructures are fully characterized by using scanning tunneling microscopy under ultra-high vacuum on a gold surface. We demonstrated that the balance between molecule-molecule interaction and molecule-substrate interaction can be drastically modified by a strong modification of the geometry of the molecules thanks to a thermal annealing. This new way is an efficient method to elaborate on-surface coordination polymers. Full article
(This article belongs to the Special Issue On-Surface Synthesis of Low-Dimensional Organic Nanostructures)
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Review

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13 pages, 5425 KiB  
Review
On-Surface Synthesis of sp-Carbon Nanostructures
by Lina Shang, Faming Kang, Wenze Gao, Zheng Zhou and Wei Xu
Nanomaterials 2022, 12(1), 137; https://doi.org/10.3390/nano12010137 - 31 Dec 2021
Cited by 5 | Viewed by 3077
Abstract
The on-surface synthesis of carbon nanostructures has attracted tremendous attention owing to their unique properties and numerous applications in various fields. With the extensive development of scanning tunneling microscope (STM) and noncontact atomic force microscope (nc-AFM), the on-surface fabricated nanostructures so far can [...] Read more.
The on-surface synthesis of carbon nanostructures has attracted tremendous attention owing to their unique properties and numerous applications in various fields. With the extensive development of scanning tunneling microscope (STM) and noncontact atomic force microscope (nc-AFM), the on-surface fabricated nanostructures so far can be characterized on atomic and even single-bond level. Therefore, various novel low-dimensional carbon nanostructures, challenging to traditional solution chemistry, have been widely studied on surfaces, such as polycyclic aromatic hydrocarbons, graphene nanoribbons, nanoporous graphene, and graphyne/graphdiyne-like nanostructures. In particular, nanostructures containing sp-hybridized carbons are of great advantage for their structural linearity and small steric demands as well as intriguing electronic and mechanical properties. Herein, the recent developments of low-dimensional sp-carbon nanostructures fabricated on surfaces will be summarized and discussed. Full article
(This article belongs to the Special Issue On-Surface Synthesis of Low-Dimensional Organic Nanostructures)
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