1
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Dettmann D, Sheverdyaeva PM, Hamzehpoor E, Franchi S, Galeotti G, Moras P, Ceccarelli C, Perepichka DF, Rosei F, Contini G. Electronic Band Engineering of Two-Dimensional Kagomé Polymers. ACS NANO 2024; 18:849-857. [PMID: 38147033 DOI: 10.1021/acsnano.3c09476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Two-dimensional conjugated polymers (2DCPs) are an emerging class of materials that exhibit properties similar to graphene yet do not have the limitation of zero bandgap. On-surface synthesis provides exceptional control on the polymerization reaction, allowing tailoring properties by choosing suitable monomers. Heteroatom-substituted triangulene 2DCPs constitute a playing ground for such a design and are predicted to exhibit graphene-like band structures with high charge mobility and characteristic Dirac cones in conduction or valence states. However, measuring these properties experimentally is challenging and requires long-range-ordered polymers, preferably with an epitaxial relationship with the substrate. Here, we investigate the electronic properties of a mesoscale-ordered carbonyl-bridged triphenylamine 2DCP (P2TANGO) and demonstrate the presence of a Dirac cone by combining angle-resolved photoemission spectroscopy (ARPES) with density functional theory (DFT) calculations. Moreover, we measure the absolute energy position of the Dirac cone with respect to the vacuum level. We show that the bridging functionality of the triangulene (ether vs carbonyl) does not significantly perturb the band structure but strongly affects the positioning of the bands with respect to the Au(111) states and allows control of the ionization energy of the polymer. Our results provide proof of the controllable electronic properties of 2DCPs and bring us closer to their use in practical applications.
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Affiliation(s)
- Dominik Dettmann
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X 1P7, Varennes, Québec, Canada
- Istituto di Struttura della Materia-CNR (ISM-CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
| | - Polina M Sheverdyaeva
- Istituto di Struttura della Materia-CNR (ISM-CNR), Strada Statale 14 km 163.5, 34149, Trieste, Italy
| | - Ehsan Hamzehpoor
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, H3A 0B8, Montreal, Quebec, Canada
| | - Stefano Franchi
- Istituto di Struttura della Materia-CNR (ISM-CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
| | - Gianluca Galeotti
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X 1P7, Varennes, Québec, Canada
| | - Paolo Moras
- Istituto di Struttura della Materia-CNR (ISM-CNR), Strada Statale 14 km 163.5, 34149, Trieste, Italy
| | - Chiara Ceccarelli
- Istituto di Struttura della Materia-CNR (ISM-CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
| | - Dmytro F Perepichka
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, H3A 0B8, Montreal, Quebec, Canada
| | - Federico Rosei
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X 1P7, Varennes, Québec, Canada
| | - Giorgio Contini
- Istituto di Struttura della Materia-CNR (ISM-CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
- Department of Physics, University Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
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2
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Li R, Zhang L, Chen T, Wang D. On-Surface Two-Dimensional Polymerization: Advances, Challenges, and Prospects. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12521-12532. [PMID: 37651313 DOI: 10.1021/acs.langmuir.3c00880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Two-dimensional polymers (2DPs) are molecularly thin networks consisting of monomers covalently linked in at least two directions in the molecular plane. Because of the unique structural features and emergent physicochemical properties, 2DPs promise application potentials in catalysis, chemical sensing, and organic electronic devices. On-surface synthesis is of great interest to fabricate 2DPs with atomic precision, and the properties of the 2DPs can be characterized in situ through scanning probe techniques. In this Perspective, we first introduce the recent developments of on-surface 2D polymerization, including the design principle, the synthetic reactions, and the factors affecting the synthesis of 2DPs on surface. Then, we summarize some major challenges in this field, including the fabrication of high-quality 2DPs and the study of the intrinsic electronic properties of 2DPs, and we discuss some of the available solutions to address these issues.
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Affiliation(s)
- Ruoning Li
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Longzhu Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Ting Chen
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Dong Wang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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3
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Di Giovannantonio M, Fasel R. On‐surface synthesis and atomic scale characterization of unprotected indenofluorene polymers. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory Dübendorf Switzerland
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory Dübendorf Switzerland
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern Bern Switzerland
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4
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Zhang Z, Perepichka DF, Khaliullin RZ. Adatoms in the Surface-Confined Ullmann Coupling of Phenyl Groups. J Phys Chem Lett 2021; 12:11061-11069. [PMID: 34747624 DOI: 10.1021/acs.jpclett.1c02914] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Despite the importance of the on-surface Ullmann coupling for synthesis of atomically precise carbon nanostructures, it is still unclear whether this reaction is catalyzed by surface atoms or adatoms. Here, the feasibility of the adatom creation and adatom-catalyzed Ullmann coupling of chloro-, bromo-, and iodobenzene on Cu(111), Ag(111), and Au(111) surfaces is examined using density functional theory modeling. The extraction of a metal atom is found to be greatly facilitated by the formation of strong phenyl-metal bonds, making the extraction energy barrier comparable to, and in the case of Ag(111) even lower than, that for the competing surface-catalyzed phenyl-phenyl bond formation. However, if the phenyl-adatom bonds are too strong, as on Cu(111) and Ag(111), they create an insurmountable barrier for the subsequent adatom-catalyzed C-C coupling. In contrast, Au adatoms do not bind phenyl groups strongly and can catalyze the C-C bond formation almost as efficiently as surface atoms.
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Affiliation(s)
- Zhenzhe Zhang
- Department of Chemistry, McGill University, 801 Sherbrooke St West, Montreal, QC H3A 0B8, Canada
| | - Dmitrii F Perepichka
- Department of Chemistry, McGill University, 801 Sherbrooke St West, Montreal, QC H3A 0B8, Canada
| | - Rustam Z Khaliullin
- Department of Chemistry, McGill University, 801 Sherbrooke St West, Montreal, QC H3A 0B8, Canada
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5
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Langlais V, Schneider K, Tang H. Light assisted synthesis of poly-para-phenylene on Ag(001). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 34:055001. [PMID: 34700309 DOI: 10.1088/1361-648x/ac334e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
A detailed study of poly-para-phenylene (PPP) obtained by light-assisted on-surface-synthesis (OSS) on Ag(100) was carried out by scanning tunneling microscopy and spectroscopy together with density functional theory calculations. The use of light in combination with heat allows to lower by 50 K annealing temperature the each stage of the Ullmann coupling. Debromination of the 4,4″ dibromo-p-terphenyl precursors was thus realized at 300 K, the formation of the first oligomers from the organometallic intermediate by silver bridging atom release at 423 K and PPP by complete elimination of the silver at 473 K. This approach to lower the reaction temperature permits to enhance the Ag(100) surface reactivity to become comparable to that of Cu(111). The underlying mechanism of light effect was proposed to occur via surface mediated excitation, with the creation of photoexcited electrons known as hot electrons correlated with surface plasmon excitation. This original pathway combining both light and heat provides an additional parameter to control OSS by separating the precursor activation stage from the diffusion.
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Affiliation(s)
- V Langlais
- CEMES-CNRS, Center for Materials Elaboration and Structural Studies, 29, rue Jeanne Marvig, BP 94347, 31055 Toulouse Cedex 4, France
| | - K Schneider
- CEMES-CNRS, Center for Materials Elaboration and Structural Studies, 29, rue Jeanne Marvig, BP 94347, 31055 Toulouse Cedex 4, France
| | - H Tang
- CEMES-CNRS, Center for Materials Elaboration and Structural Studies, 29, rue Jeanne Marvig, BP 94347, 31055 Toulouse Cedex 4, France
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6
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Au-Yeung KH, Kühne T, Becker D, Richter M, Ryndyk DA, Cuniberti G, Heine T, Feng X, Moresco F. On-Surface Formation of Cyano-Vinylene Linked Chains by Knoevenagel Condensation. Chemistry 2021; 27:17336-17340. [PMID: 34652042 PMCID: PMC9298206 DOI: 10.1002/chem.202103094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 11/12/2022]
Abstract
The rapid development of on‐surface synthesis provides a unique approach toward the formation of carbon‐based nanostructures with designed properties. Herein, we present the on‐surface formation of CN‐substituted phenylene vinylene chains on the Au(111) surface, thermally induced by annealing the substrate stepwise at temperatures between 220 °C and 240 °C. The reaction is investigated by scanning tunneling microscopy and density functional theory. Supported by the calculated reaction pathway, we assign the observed chain formation to a Knoevenagel condensation between an aldehyde and a methylene nitrile substituent.
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Affiliation(s)
- Kwan Ho Au-Yeung
- Center for Advancing Electronics Dresden (cfaed), TU Dresden, 01062, Dresden, Germany
| | - Tim Kühne
- Center for Advancing Electronics Dresden (cfaed), TU Dresden, 01062, Dresden, Germany
| | - Daniel Becker
- Institute of Molecular Functional Materials, Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Marcus Richter
- Institute of Molecular Functional Materials, Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Dmitry A Ryndyk
- Institute for Materials Science, TU Dresden, 01062, Dresden, Germany.,Theoretical Chemistry, TU Dresden, 01062, Dresden, Germany
| | | | - Thomas Heine
- Theoretical Chemistry, TU Dresden, 01062, Dresden, Germany.,Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Leipzig Research Branch, 04316, Leipzig, Germany.,Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Xinliang Feng
- Institute of Molecular Functional Materials, Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Francesca Moresco
- Center for Advancing Electronics Dresden (cfaed), TU Dresden, 01062, Dresden, Germany
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7
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Dettmann D, Galeotti G, MacLean O, Tomellini M, Di Giovannantonio M, Lipton-Duffin J, Verdini A, Floreano L, Fagot-Revurat Y, Perepichka DF, Rosei F, Contini G. Identification of Topotactic Surface-Confined Ullmann-Polymerization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103044. [PMID: 34477325 DOI: 10.1002/smll.202103044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/21/2021] [Indexed: 06/13/2023]
Abstract
On-surface Ullmann coupling is an established method for the synthesis of 1D and 2D organic structures. A key limitation to obtaining ordered polymers is the uncertainty in the final structure for coupling via random diffusion of reactants over the substrate, which leads to polymorphism and defects. Here, a topotactic polymerization on Cu(110) in a series of differently-halogenated para-phenylenes is identified, where the self-assembled organometallic (OM) reactants of diiodobenzene couple directly into a single, deterministic product, whereas the other precursors follow a diffusion driven reaction. The topotactic mechanism is the result of the structure of the iodine on Cu(110), which controls the orientation of the OM reactants and intermediates to be the same as the final polymer chains. Temperature-programmed X-ray photoelectron spectroscopy and kinetic modeling reflect the differences in the polymerization regimes, and the effects of the OM chain alignments and halogens are disentangled by Nudged Elastic Band calculations. It is found that the repulsion or attraction between chains and halogens drive the polymerization to be either diffusive or topotactic. These results provide detailed insights into on-surface reaction mechanisms and prove the possibility of harnessing topotactic reactions in surface-confined Ullmann polymerization.
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Affiliation(s)
- Dominik Dettmann
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X1S2, Varennes, Québec, Canada
| | - Gianluca Galeotti
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X1S2, Varennes, Québec, Canada
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via Fosso del Cavaliere 100, Roma, 00133, Italy
| | - Oliver MacLean
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X1S2, Varennes, Québec, Canada
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, P. R. China
| | - Massimo Tomellini
- Department of Chemistry, University Tor Vergata, Via della Ricerca Scientifica 1, Roma, 00133, Italy
| | - Marco Di Giovannantonio
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via Fosso del Cavaliere 100, Roma, 00133, Italy
| | - Josh Lipton-Duffin
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, 4001 QLD, Australia
| | - Alberto Verdini
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, S.S. 14, km 163.5, Trieste, I-34149, Italy
| | - Luca Floreano
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, S.S. 14, km 163.5, Trieste, I-34149, Italy
| | - Yannick Fagot-Revurat
- Institut Jean Lamour Campus ARTEM UMR 7198, CNRS-Université de Lorraine, 2 allée André Guinier, BP 50840, Nancy, 54011, France
| | - Dmitrii F Perepichka
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Federico Rosei
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique Department, 1650 Boulevard Lionel-Boulet, J3X1S2, Varennes, Québec, Canada
| | - Giorgio Contini
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via Fosso del Cavaliere 100, Roma, 00133, Italy
- Department of Physics, University Tor Vergata, Via della Ricerca Scientifica 1, Roma, 00133, Italy
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8
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Stolz S, Di Giovannantonio M, Urgel JI, Sun Q, Kinikar A, Borin Barin G, Bommert M, Fasel R, Widmer R. Reversible Dehalogenation in On‐Surface Aryl–Aryl Coupling. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Samuel Stolz
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
- Institute of Physics École Polytechnique Fédérale de Lausanne Laboratory of Nanostructures at Surfaces 1015 Lausanne Switzerland
| | - Marco Di Giovannantonio
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - José I. Urgel
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Qiang Sun
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Amogh Kinikar
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Gabriela Borin Barin
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Max Bommert
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Roman Fasel
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
- Department of Chemistry and Biochemistry University of Bern 3012 Bern Switzerland
| | - Roland Widmer
- Empa Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
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9
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Stolz S, Di Giovannantonio M, Urgel JI, Sun Q, Kinikar A, Borin Barin G, Bommert M, Fasel R, Widmer R. Reversible Dehalogenation in On-Surface Aryl-Aryl Coupling. Angew Chem Int Ed Engl 2020; 59:14106-14110. [PMID: 32338418 DOI: 10.1002/anie.202005443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Indexed: 11/05/2022]
Abstract
In the emerging field of on-surface synthesis, dehalogenative aryl-aryl coupling is unarguably the most prominent tool for the fabrication of covalently bonded carbon-based nanomaterials. Despite its importance, the reaction kinetics are still poorly understood. Here we present a comprehensive temperature-programmed x-ray photoelectron spectroscopy investigation of reaction kinetics and energetics in the prototypical on-surface dehalogenative polymerization of 4,4''-dibromo-p-terphenyl into poly(para-phenylene) on two coinage metal surfaces, Cu(111) and Au(111). We find clear evidence for reversible dehalogenation on Au(111), which is inhibited on Cu(111) owing to the formation of organometallic intermediates. The incorporation of reversible dehalogenation in the reaction rate equations leads to excellent agreement with experimental data and allows extracting the relevant energy barriers. Our findings deepen the mechanistic understanding and call for its reassessment for surface-confined aryl-aryl coupling on the most frequently used metal substrates.
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Affiliation(s)
- Samuel Stolz
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland.,Institute of Physics, École Polytechnique Fédérale de Lausanne, Laboratory of Nanostructures at Surfaces, 1015, Lausanne, Switzerland
| | - Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
| | - José I Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
| | - Qiang Sun
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
| | - Amogh Kinikar
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
| | - Gabriela Borin Barin
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
| | - Max Bommert
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland.,Department of Chemistry and Biochemistry, University of Bern, 3012, Bern, Switzerland
| | - Roland Widmer
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600, Dübendorf, Switzerland
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10
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Urgel JI, Di Giovannantonio M, Eimre K, Lohr TG, Liu J, Mishra S, Sun Q, Kinikar A, Widmer R, Stolz S, Bommert M, Berger R, Ruffieux P, Pignedoli CA, Müllen K, Feng X, Fasel R. On-Surface Synthesis of Cumulene-Containing Polymers via Two-Step Dehalogenative Homocoupling of Dibromomethylene-Functionalized Tribenzoazulene. Angew Chem Int Ed Engl 2020; 59:13281-13287. [PMID: 32350979 PMCID: PMC7496152 DOI: 10.1002/anie.202001939] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/29/2020] [Indexed: 11/24/2022]
Abstract
Cumulene compounds are notoriously difficult to prepare and study because their reactivity increases dramatically with the increasing number of consecutive double bonds. In this respect, the emerging field of on-surface synthesis provides exceptional opportunities because it relies on reactions on clean metal substrates under well-controlled ultrahigh-vacuum conditions. Here we report the on-surface synthesis of a polymer linked by cumulene-like bonds on a Au(111) surface via sequential thermally activated dehalogenative C-C coupling of a tribenzoazulene precursor equipped with two dibromomethylene groups. The structure and electronic properties of the resulting polymer with cumulene-like pentagon-pentagon and heptagon-heptagon connections have been investigated by means of scanning probe microscopy and spectroscopy methods and X-ray photoelectron spectroscopy, complemented by density functional theory calculations. Our results provide perspectives for the on-surface synthesis of cumulene-containing compounds, as well as protocols relevant to the stepwise fabrication of carbon-carbon bonds on surfaces.
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Affiliation(s)
- José I. Urgel
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Marco Di Giovannantonio
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Kristjan Eimre
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Thorsten G. Lohr
- Center for Advancing Electronics and Department of Chemistry and Food ChemistryTechnical University of Dresden01062DresdenGermany
| | - Junzhi Liu
- Center for Advancing Electronics and Department of Chemistry and Food ChemistryTechnical University of Dresden01062DresdenGermany
| | - Shantanu Mishra
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Qiang Sun
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Amogh Kinikar
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Roland Widmer
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Samuel Stolz
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
- Laboratory of Nanostructures at SurfacesInstitute of Physics, École Polytechnique Fédérale de LausanneCH-1015LausanneSwitzerland
| | - Max Bommert
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Reinhard Berger
- Center for Advancing Electronics and Department of Chemistry and Food ChemistryTechnical University of Dresden01062DresdenGermany
| | - Pascal Ruffieux
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Carlo A. Pignedoli
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Xinliang Feng
- Center for Advancing Electronics and Department of Chemistry and Food ChemistryTechnical University of Dresden01062DresdenGermany
| | - Roman Fasel
- Empa – Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 33012BernSwitzerland
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11
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Galeotti G, De Marchi F, Hamzehpoor E, MacLean O, Rajeswara Rao M, Chen Y, Besteiro LV, Dettmann D, Ferrari L, Frezza F, Sheverdyaeva PM, Liu R, Kundu AK, Moras P, Ebrahimi M, Gallagher MC, Rosei F, Perepichka DF, Contini G. Synthesis of mesoscale ordered two-dimensional π-conjugated polymers with semiconducting properties. NATURE MATERIALS 2020; 19:874-880. [PMID: 32424372 DOI: 10.1038/s41563-020-0682-z] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 04/14/2020] [Indexed: 05/08/2023]
Abstract
Two-dimensional materials with high charge carrier mobility and tunable band gaps have attracted intense research effort for their potential use in nanoelectronics. Two-dimensional π-conjugated polymers constitute a promising subclass because the band structure can be manipulated by varying the molecular building blocks while preserving key features such as Dirac cones and high charge mobility. The major barriers to the application of two-dimensional π-conjugated polymers have been the small domain size and high defect density attained in the syntheses explored so far. Here, we demonstrate the fabrication of mesoscale ordered two-dimensional π-conjugated polymer kagome lattices with semiconducting properties, Dirac cone structures and flat bands on Au(111). This material has been obtained by combining a rigid azatriangulene precursor and a hot dosing approach, which favours molecular diffusion and eliminates voids in the network. These results open opportunities for the synthesis of two-dimensional π-conjugated polymer Dirac cone materials and their integration into devices.
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Affiliation(s)
- G Galeotti
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
- Istituto di Struttura della Materia, CNR, Roma, Italy
- Deutsches Museum, München, Germany
| | - F De Marchi
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
| | - E Hamzehpoor
- Department of Chemistry, McGill University, Montreal, Québec, Canada
| | - O MacLean
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
| | - M Rajeswara Rao
- Department of Chemistry, McGill University, Montreal, Québec, Canada
| | - Y Chen
- Department of Chemistry, McGill University, Montreal, Québec, Canada
| | - L V Besteiro
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - D Dettmann
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
- Istituto di Struttura della Materia, CNR, Roma, Italy
| | - L Ferrari
- Istituto di Struttura della Materia, CNR, Roma, Italy
| | - F Frezza
- Istituto di Struttura della Materia, CNR, Roma, Italy
- Department of Physics, University of Tor Vergata, Rome, Italy
| | | | - R Liu
- Department of Physics, Lakehead University, Thunder Bay, Ontario, Canada
| | - A K Kundu
- Istituto di Struttura della Materia, CNR, Trieste, Italy
| | - P Moras
- Istituto di Struttura della Materia, CNR, Trieste, Italy
| | - M Ebrahimi
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
- Department of Chemistry, Lakehead University, Thunder Bay, Ontario, Canada
| | - M C Gallagher
- Department of Physics, Lakehead University, Thunder Bay, Ontario, Canada.
| | - F Rosei
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada.
| | - D F Perepichka
- Department of Chemistry, McGill University, Montreal, Québec, Canada.
| | - G Contini
- Istituto di Struttura della Materia, CNR, Roma, Italy.
- Department of Physics, University of Tor Vergata, Rome, Italy.
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12
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Di Giovannantonio M, Yao X, Eimre K, Urgel JI, Ruffieux P, Pignedoli CA, Müllen K, Fasel R, Narita A. Large-Cavity Coronoids with Different Inner and Outer Edge Structures. J Am Chem Soc 2020; 142:12046-12050. [PMID: 32589416 PMCID: PMC7467669 DOI: 10.1021/jacs.0c05268] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
![]()
Coronoids,
polycyclic aromatic hydrocarbons with geometrically
defined cavities, are promising model structures of porous graphene.
Here, we report the on-surface synthesis of C168 and C140 coronoids,
referred to as [6]- and [5]coronoid, respectively, using 5,9-dibromo-14-phenylbenzo[m]tetraphene as the precursor. These coronoids entail large
cavities (>1 nm) with inner zigzag edges, distinct from their outer
armchair edges. While [6]coronoid is planar, [5]coronoid is not. Low-temperature
scanning tunneling microscopy/spectroscopy and noncontact atomic force
microscopy unveil structural and electronic properties in accordance
with those obtained from density functional theory calculations. Detailed
analysis of ring current effects identifies the rings with the highest
aromaticity of these coronoids, whose pattern matches their Clar structure.
The pores of the obtained coronoids offer intriguing possibilities
of further functionalization toward advanced host–guest applications.
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Affiliation(s)
- Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Xuelin Yao
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Kristjan Eimre
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - José I Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Carlo A Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany.,Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland.,Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany.,Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
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13
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Di Giovannantonio M, Chen Q, Urgel JI, Ruffieux P, Pignedoli CA, Müllen K, Narita A, Fasel R. On-Surface Synthesis of Oligo(indenoindene). J Am Chem Soc 2020; 142:12925-12929. [DOI: 10.1021/jacs.0c05701] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Qiang Chen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - José I. Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Carlo A. Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
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14
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Lohr TG, Urgel JI, Eimre K, Liu J, Di Giovannantonio M, Mishra S, Berger R, Ruffieux P, Pignedoli CA, Fasel R, Feng X. On-Surface Synthesis of Non-Benzenoid Nanographenes by Oxidative Ring-Closure and Ring-Rearrangement Reactions. J Am Chem Soc 2020; 142:13565-13572. [DOI: 10.1021/jacs.0c05668] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thorsten G. Lohr
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
| | - José I. Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
- IMDEA Nanoscience, C/Faraday 9, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Kristjan Eimre
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Shantanu Mishra
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Reinhard Berger
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Carlo A. Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Xinliang Feng
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
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15
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Urgel JI, Di Giovannantonio M, Eimre K, Lohr TG, Liu J, Mishra S, Sun Q, Kinikar A, Widmer R, Stolz S, Bommert M, Berger R, Ruffieux P, Pignedoli CA, Müllen K, Feng X, Fasel R. On‐Surface Synthesis of Cumulene‐Containing Polymers via Two‐Step Dehalogenative Homocoupling of Dibromomethylene‐Functionalized Tribenzoazulene. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001939] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- José I. Urgel
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Marco Di Giovannantonio
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Kristjan Eimre
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Thorsten G. Lohr
- Center for Advancing Electronics and Department of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - Junzhi Liu
- Center for Advancing Electronics and Department of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - Shantanu Mishra
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Qiang Sun
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Amogh Kinikar
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Roland Widmer
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Samuel Stolz
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
- Laboratory of Nanostructures at Surfaces Institute of Physics, École Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Max Bommert
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Reinhard Berger
- Center for Advancing Electronics and Department of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - Pascal Ruffieux
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Carlo A. Pignedoli
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Xinliang Feng
- Center for Advancing Electronics and Department of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - Roman Fasel
- Empa – Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 3012 Bern Switzerland
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16
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Di Giovannantonio M, Keerthi A, Urgel JI, Baumgarten M, Feng X, Ruffieux P, Narita A, Fasel R, Müllen K. On-Surface Dehydro-Diels-Alder Reaction of Dibromo-bis(phenylethynyl)benzene. J Am Chem Soc 2020; 142:1721-1725. [PMID: 31931559 DOI: 10.1021/jacs.9b11755] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
On-surface synthesis under ultrahigh vacuum conditions is a powerful tool to achieve molecular structures that cannot be accessed via traditional wet chemistry. Nevertheless, only a very limited number of chemical reactions out of the wide variety known from solution chemistry have been reported to proceed readily on atomically flat substrates. Cycloadditions are a class of reactions that are particularly important in the synthesis of sp2-hybridized carbon-based nanostructures. Here, we report on a specific type of [4 + 2] cycloaddition, namely, a dehydro-Diels-Alder (DDA) reaction, performed between bis(phenylethynyl)-benzene precursors on Au(111). Unlike a Diels-Alder reaction, DDA exploits ethynyl groups to achieve the formation of an extra six-membered ring. Despite its extensive use in solution chemistry for more than a century, this reaction has never been reported to occur on surfaces. The specific choice of our precursor molecule has led to the successful synthesis of benzo- and naphtho-fused tetracene and heptacene products bearing styryl groups, as confirmed by scanning tunneling microscopy and noncontact atomic force microscopy. The two products arise from dimerization and trimerization of the precursor molecules, respectively, and their observation opens perspectives to use DDA reactions as a novel on-surface synthesis tool.
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Affiliation(s)
- Marco Di Giovannantonio
- nanotech@surfaces Laboratory , Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf , Switzerland
| | - Ashok Keerthi
- Max Planck Institute for Polymer Research , 55128 Mainz , Germany.,Department of Chemistry , The University of Manchester , M13 9PL Manchester , U.K
| | - José I Urgel
- nanotech@surfaces Laboratory , Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf , Switzerland
| | | | - Xinliang Feng
- Center for Advancing Electronics Dresden, Department of Chemistry and Food Chemistry , Technische Universität Dresden , 01062 Dresden , Germany
| | - Pascal Ruffieux
- nanotech@surfaces Laboratory , Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf , Switzerland
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research , 55128 Mainz , Germany.,Okinawa Institute of Science and Technology Graduate University , 904-0495 Okinawa , Japan
| | - Roman Fasel
- nanotech@surfaces Laboratory , Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf , Switzerland.,Department of Chemistry and Biochemistry , University of Bern , 3012 Bern , Switzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research , 55128 Mainz , Germany
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17
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Chen Z, Lin T, Li H, Cheng F, Su C, Loh KP. Hydrogen bond guided synthesis of close-packed one-dimensional graphdiyne on the Ag(111) surface. Chem Sci 2019; 10:10849-10852. [PMID: 32055387 PMCID: PMC7003942 DOI: 10.1039/c9sc04530a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 10/27/2019] [Indexed: 11/21/2022] Open
Abstract
Aided by hydrogen bonding, alkyne and oxazole functionalized precursors undergo uniform self-assembly, which serves as a template for the fabrication of one-dimensional graphdiyne-like wires on the Ag(111) surface.
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Affiliation(s)
- Zhi Chen
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology , International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education , Institute of Microscale Optoelectronics , Shenzhen University , Shenzhen , 518060 , China . .,Department of Chemistry , Centre for Advanced 2D Materials (CA2DM) , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Tao Lin
- College of New Materials and New Energies , Shenzhen Technology University , Shenzhen 518118 , China
| | - Haohan Li
- Department of Chemistry , Centre for Advanced 2D Materials (CA2DM) , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Fang Cheng
- Department of Chemistry , Centre for Advanced 2D Materials (CA2DM) , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Chenliang Su
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology , International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education , Institute of Microscale Optoelectronics , Shenzhen University , Shenzhen , 518060 , China .
| | - Kian Ping Loh
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology , International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education , Institute of Microscale Optoelectronics , Shenzhen University , Shenzhen , 518060 , China . .,Department of Chemistry , Centre for Advanced 2D Materials (CA2DM) , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
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18
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Merino-Díez N, Pérez Paz A, Li J, Vilas-Varela M, Lawrence J, Mohammed MSG, Berdonces-Layunta A, Barragán A, Pascual JI, Lobo-Checa J, Peña D, de Oteyza DG. Hierarchy in the Halogen Activation During Surface-Promoted Ullmann Coupling. Chemphyschem 2019; 20:2305-2310. [PMID: 31328365 DOI: 10.1002/cphc.201900633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Indexed: 11/07/2022]
Abstract
Within the collection of surface-supported reactions currently accessible for the production of extended molecular nanostructures under ultra-high vacuum, Ullmann coupling has been the most successful in the controlled formation of covalent single C-C bonds. Particularly advanced control of this synthetic tool has been obtained by means of hierarchical reactivity, commonly achieved by the use of different halogen atoms that consequently display distinct activation temperatures. Here we report on the site-selective reactivity of certain carbon-halogen bonds. We use precursor molecules halogenated with bromine atoms at two non-equivalent carbon atoms and found that the Ullmann coupling occurs on Au(111) with a remarkable predilection for one of the positions. Experimental evidence is provided by means of scanning tunneling microscopy and core level photoemission spectroscopy, and a rationalized understanding of the observed preference is obtained from density functional theory calculations.
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Affiliation(s)
- Néstor Merino-Díez
- Donostia International Physics Center (DIPC), 20018, San Sebastián, Spain
- CIC nanoGUNE, Nanoscience Cooperative Research Center, 20018, San Sebastián, Spain
- Centro de Física de Materiales - MPC, CISC-UPV/EHU, 20018, San Sebastián, Spain
| | - Alejandro Pérez Paz
- School of Physical Sciences and Nanotechnology, Yachay Tech University, 100119, Urcuqui, Ecuador
| | - Jingcheng Li
- CIC nanoGUNE, Nanoscience Cooperative Research Center, 20018, San Sebastián, Spain
| | - Manuel Vilas-Varela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - James Lawrence
- Donostia International Physics Center (DIPC), 20018, San Sebastián, Spain
- Centro de Física de Materiales - MPC, CISC-UPV/EHU, 20018, San Sebastián, Spain
| | - Mohammed S G Mohammed
- Donostia International Physics Center (DIPC), 20018, San Sebastián, Spain
- Centro de Física de Materiales - MPC, CISC-UPV/EHU, 20018, San Sebastián, Spain
| | - Alejandro Berdonces-Layunta
- Donostia International Physics Center (DIPC), 20018, San Sebastián, Spain
- Centro de Física de Materiales - MPC, CISC-UPV/EHU, 20018, San Sebastián, Spain
| | - Ana Barragán
- Centro de Física de Materiales - MPC, CISC-UPV/EHU, 20018, San Sebastián, Spain
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU), 20018, San Sebastián, Spain
| | - Jose Ignacio Pascual
- CIC nanoGUNE, Nanoscience Cooperative Research Center, 20018, San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain
| | - Jorge Lobo-Checa
- Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009, Zaragoza
| | - Diego Peña
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Dimas G de Oteyza
- Donostia International Physics Center (DIPC), 20018, San Sebastián, Spain
- Centro de Física de Materiales - MPC, CISC-UPV/EHU, 20018, San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain
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19
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Di Giovannantonio M, Eimre K, Yakutovich AV, Chen Q, Mishra S, Urgel JI, Pignedoli CA, Ruffieux P, Müllen K, Narita A, Fasel R. On-Surface Synthesis of Antiaromatic and Open-Shell Indeno[2,1-b]fluorene Polymers and Their Lateral Fusion into Porous Ribbons. J Am Chem Soc 2019; 141:12346-12354. [DOI: 10.1021/jacs.9b05335] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Kristjan Eimre
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Aliaksandr V. Yakutovich
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Qiang Chen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Shantanu Mishra
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - José I. Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Carlo A. Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
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20
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Urgel JI, Di Giovannantonio M, Gandus G, Chen Q, Liu X, Hayashi H, Ruffieux P, Decurtins S, Narita A, Passerone D, Yamada H, Liu S, Müllen K, Pignedoli CA, Fasel R. Overcoming Steric Hindrance in Aryl‐Aryl Homocoupling via On‐Surface Copolymerization. Chemphyschem 2019; 20:2360-2366. [DOI: 10.1002/cphc.201900283] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/29/2019] [Indexed: 11/09/2022]
Affiliation(s)
- José I. Urgel
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Marco Di Giovannantonio
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Guido Gandus
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Qiang Chen
- Max Planck Institute for Polymer Research 55128 Mainz Germany
| | - Xunshan Liu
- Department of Chemistry and BiochemistryUniversity of Bern 3012 Bern Switzerland
| | - Hironobu Hayashi
- Division of Materials ScienceGraduate School of Science and Technology Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Pascal Ruffieux
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Silvio Decurtins
- Department of Chemistry and BiochemistryUniversity of Bern 3012 Bern Switzerland
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research 55128 Mainz Germany
- Organic and Carbon Nanomaterials UnitOkinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son, Kunigami Okinawa 904-0495 Japan
| | - Daniele Passerone
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Hiroko Yamada
- Division of Materials ScienceGraduate School of Science and Technology Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Shi‐Xia Liu
- Department of Chemistry and BiochemistryUniversity of Bern 3012 Bern Switzerland
| | - Klaus Müllen
- Max Planck Institute for Polymer Research 55128 Mainz Germany
- Institute of Physical ChemistryJohannes Gutenberg-Universität Mainz 55128 Mainz Germany
| | - Carlo A. Pignedoli
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
| | - Roman Fasel
- EmpaSwiss Federal Laboratories for Materials Science and Technology nanotech@surfaces Laboratory 8600 Dübendorf Switzerland
- Department of Chemistry and BiochemistryUniversity of Bern 3012 Bern Switzerland
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21
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Clair S, de Oteyza DG. Controlling a Chemical Coupling Reaction on a Surface: Tools and Strategies for On-Surface Synthesis. Chem Rev 2019; 119:4717-4776. [PMID: 30875199 PMCID: PMC6477809 DOI: 10.1021/acs.chemrev.8b00601] [Citation(s) in RCA: 325] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Indexed: 01/06/2023]
Abstract
On-surface synthesis is appearing as an extremely promising research field aimed at creating new organic materials. A large number of chemical reactions have been successfully demonstrated to take place directly on surfaces through unusual reaction mechanisms. In some cases the reaction conditions can be properly tuned to steer the formation of the reaction products. It is thus possible to control the initiation step of the reaction and its degree of advancement (the kinetics, the reaction yield); the nature of the reaction products (selectivity control, particularly in the case of competing processes); as well as the structure, position, and orientation of the covalent compounds, or the quality of the as-formed networks in terms of order and extension. The aim of our review is thus to provide an extensive description of all tools and strategies reported to date and to put them into perspective. We specifically define the different approaches available and group them into a few general categories. In the last part, we demonstrate the effective maturation of the on-surface synthesis field by reporting systems that are getting closer to application-relevant levels thanks to the use of advanced control strategies.
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Affiliation(s)
- Sylvain Clair
- Aix
Marseille Univ., Université de Toulon, CNRS, IM2NP, Marseille, France
| | - Dimas G. de Oteyza
- Donostia
International Physics Center, San
Sebastián 20018, Spain
- Centro
de Física de Materiales CSIC-UPV/EHU-MPC, San Sebastián 20018, Spain
- Ikerbasque,
Basque Foundation for Science, Bilbao 48013, Spain
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Kalashnyk N, Salomon E, Mun SH, Jung J, Giovanelli L, Angot T, Dumur F, Gigmes D, Clair S. The Orientation of Silver Surfaces Drives the Reactivity and the Selectivity in Homo-Coupling Reactions. Chemphyschem 2018; 19:1802-1808. [PMID: 29732680 DOI: 10.1002/cphc.201800406] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 11/08/2022]
Abstract
Original reaction pathways can be explored in the on-surface synthesis approach where small aromatic precursors are confined to the surface of single crystal metals. The bis-indanedione molecule reacted with itself on silver surfaces in different ways, through a Knoevenagel reaction or an oxidative coupling, leading to the formation of a variety of new molecular compounds and covalently-linked 1D or 2D networks. Noteworthy, original reaction products were obtained that cannot be synthesized in traditional solvent-based chemistry. The lowest activation temperature for the homo-coupling reactions was found on the Ag(111) surface. The Ag(110) was highly selective in terms of coupling reaction type, while on Ag(100) the temperature could finely control the selectivity. The on-surface synthesis approach is shown here to be particularly efficient to produce original compounds in mild conditions, using activation temperatures as low as 200 °C. The different structures were characterized by scanning tunnelling microscopy (STM) together with X-ray photoelectron emission spectroscopy (XPS) and high-resolution electron energy loss spectroscopy (HREELS).
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Affiliation(s)
| | - Eric Salomon
- Aix Marseille Univ, CNRS, PIIM, Marseille, France
| | - Sung Hwan Mun
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Jaehoon Jung
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Luca Giovanelli
- Aix Marseille Univ, Univ Toulon, CNRS, IM2NP, Marseille, France
| | | | | | | | - Sylvain Clair
- Aix Marseille Univ, Univ Toulon, CNRS, IM2NP, Marseille, France
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23
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Di Giovannantonio M, Urgel JI, Beser U, Yakutovich AV, Wilhelm J, Pignedoli CA, Ruffieux P, Narita A, Müllen K, Fasel R. On-Surface Synthesis of Indenofluorene Polymers by Oxidative Five-Membered Ring Formation. J Am Chem Soc 2018; 140:3532-3536. [DOI: 10.1021/jacs.8b00587] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - José I. Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Uliana Beser
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Aliaksandr V. Yakutovich
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Jan Wilhelm
- Department of Chemistry, University of Zürich, 8057 Zürich, Switzerland
| | - Carlo A. Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, nanotech@surfaces Laboratory, 8600 Dübendorf, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
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