1
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de la Rie J, Wang Q, Enache M, Kivala M, Stöhr M. Comparing Adsorption of an Electron-Rich Triphenylene Derivative: Metallic vs Graphitic Surfaces. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:11014-11023. [PMID: 38983597 PMCID: PMC11229062 DOI: 10.1021/acs.jpcc.4c02376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 07/11/2024]
Abstract
Crucial to the performance of devices based on organic molecules is an understanding of how the substrate-molecule interface influences both structural and electronic properties of the molecular layers. Within this context we studied the self-assembly of an alkoxy-triphenylene derived electron donor (HAT) in the monolayer regime on graphene/Ni(111). The molecules assembled into a close-packed hexagonal network commensurate with the graphene layer. Despite the commensurate structure, the HAT molecules only had a weak, physisorptive interaction with the substrate as pointed out by the photoelectron spectroscopy data. We discuss these findings in view of our recent reports for HAT adsorbed on Ag(111) and graphene/Ir(111). For all three substrates HAT adopts a similar close-packed hexagonal structure commensurate with the substrate while being physisorbed. The ionization potential is equal for all three substrates, supporting weak molecule-substrate interactions. These findings are remarkable, as commensurate overlayers usually only form at strongly interacting interfaces. We discuss potential reasons for this particular behavior of HAT which clearly sets itself apart from most studied molecule-substrate systems. In particular, these are the relatively weak but flexible intermolecular interactions, the molecular symmetry matching that of the substrate, and the comparatively weak but directional molecule-substrate interactions.
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Affiliation(s)
- Joris de la Rie
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 Groningen, AG, The Netherlands
| | - Qiankun Wang
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 Groningen, AG, The Netherlands
| | - Mihaela Enache
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 Groningen, AG, The Netherlands
| | - Milan Kivala
- Institute
of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Meike Stöhr
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, 9747 Groningen, AG, The Netherlands
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2
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Wang Y, Gong WW, Zhao Y, Xing GY, Kang LX, Sha F, Huang ZY, Liu JW, Han YJ, Li P, Li DY, Liu PN. Two-Dimensional Nonbenzenoid Heteroacene Crystals Synthesized via In-Situ Embedding of Ladder Bipyrazinylenes on Au(111). Angew Chem Int Ed Engl 2024; 63:e202318142. [PMID: 38265124 DOI: 10.1002/anie.202318142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 01/25/2024]
Abstract
Precisely introducing topological defects is an important strategy in nanographene crystal engineering because defects can tune π-electronic structures and control molecular assemblies. The synergistic control of the synthesis and assembly of nanographenes by embedding the topological defects to afford two-dimensional (2D) crystals on surfaces is still a great challenge. By in-situ embedding ladder bipyrazinylene (LBPy) into acene, the narrowest nanographene with zigzag edges, we have achieved the precise preparation of 2D nonbenzenoid heteroacene crystals on Au(111). Through intramolecular electrocyclization of o-diisocyanides and Au adatom-directed [2+2] cycloaddition, the nonbenzenoid heteroacene products are produced with high chemoselectivity, and lead to the molecular 2D assembly via LBPy-derived interlocking hydrogen bonds. Using bond-resolved scanning tunneling microscopy, we determined the atomic structures of the nonbenzenoid heteroacene product and diverse organometallic intermediates. The tunneling spectroscopy measurements revealed the electronic structure of the nonbenzenoid heteroacene, which is supported by density functional theory (DFT) calculations. The observed distinct organometallic intermediates during progression annealing combined with DFT calculations demonstrated that LBPy formation proceeds via electrocyclization of o-diisocyanides, trapping of heteroarynes by Au adatoms, and stepwise elimination of Au adatoms.
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Affiliation(s)
- Ying Wang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Wen-Wen Gong
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Yan Zhao
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Guang-Yan Xing
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Li-Xia Kang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Feng Sha
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Zheng-Yang Huang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Jian-Wei Liu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Yan-Jie Han
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Peng Li
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Deng-Yuan Li
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
- State Key Laboratory of Natural Medicines, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, P. R. China
| | - Pei-Nian Liu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
- State Key Laboratory of Natural Medicines, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, P. R. China
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3
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Zuzak R, Kumar M, Stoica O, Soler-Polo D, Brabec J, Pernal K, Veis L, Blieck R, Echavarren AM, Jelinek P, Godlewski S. On-Surface Synthesis and Determination of the Open-Shell Singlet Ground State of Tridecacene. Angew Chem Int Ed Engl 2024; 63:e202317091. [PMID: 38192200 DOI: 10.1002/anie.202317091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
The character of the electronic structure of acenes has been the subject of longstanding discussion. However, convincing experimental evidence of their open-shell character has so far been missing. Here, we present the on-surface synthesis of tridecacene molecules by thermal annealing of octahydrotridecacene on a Au(111) surface. We characterized the electronic structure of the tridecacene by scanning probe microscopy, which reveals the presence of an inelastic signal at 126 meV. We attribute the inelastic signal to spin excitation from the singlet diradical ground state to the triplet excited state. To rationalize the experimental findings, we carried out many-body ab initio calculations as well as model Hamiltonians to take into account the effect of the metallic substrate. Moreover, we provide a detailed analysis of how the dynamic electron correlation and virtual charge fluctuation between the molecule and metallic surface reduces the singlet-triplet band gap. Thus, this work provides the first experimental confirmation of the magnetic character of tridecacene.
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Affiliation(s)
- Rafal Zuzak
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30348, Krakow, Poland
| | - Manish Kumar
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 16200, Prague, Czech Republic
| | - Otilia Stoica
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, 43007, Tarragona, Spain
- Departament de Quımica Organica i Analıtica, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - Diego Soler-Polo
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 16200, Prague, Czech Republic
| | - Jiri Brabec
- Department of Theoretical Chemistry, J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, 18200, Prague, Czech Republic
| | - Katarzyna Pernal
- Institute of Physics, Lodz University of Technology, ul. Wolczanska 219, 90924, Lodz, Poland
| | - Libor Veis
- Department of Theoretical Chemistry, J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, 18200, Prague, Czech Republic
| | - Remi Blieck
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, 43007, Tarragona, Spain
- Departament de Quımica Organica i Analıtica, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - Pavel Jelinek
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 16200, Prague, Czech Republic
| | - Szymon Godlewski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30348, Krakow, Poland
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4
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Okba A, Simón Marqués P, Matsuo K, Aratani N, Yamada H, Rapenne G, Kammerer C. Synthesis of π-conjugated polycyclic compounds by late-stage extrusion of chalcogen fragments. Beilstein J Org Chem 2024; 20:287-305. [PMID: 38379731 PMCID: PMC10877077 DOI: 10.3762/bjoc.20.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/31/2024] [Indexed: 02/22/2024] Open
Abstract
The "precursor approach" has proved particularly valuable for the preparation of insoluble and unstable π-conjugated polycyclic compounds (π-CPCs), which cannot be synthesized via in-solution organic chemistry, for their improved processing, as well as for their electronic investigation both at the material and single-molecule scales. This method relies on the synthesis and processing of soluble and stable direct precursors of the target π-CPCs, followed by their final conversion in situ, triggered by thermal activation, photoirradiation or redox control. Beside well-established reactions involving the elimination of carbon-based small molecules, i.e., retro-Diels-Alder and decarbonylation processes, the late-stage extrusion of chalcogen fragments has emerged as a highly promising synthetic tool to access a wider variety of π-conjugated polycyclic structures and thus to expand the potentialities of the "precursor approach" for further improvements of molecular materials' performances. This review gives an overview of synthetic strategies towards π-CPCs involving the ultimate elimination of chalcogen fragments upon thermal activation, photoirradiation and electron exchange.
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Affiliation(s)
- Aissam Okba
- CEMES, Université de Toulouse, CNRS, 29 rue Marvig, F-31055 Toulouse Cedex 4, France
- Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Pablo Simón Marqués
- CEMES, Université de Toulouse, CNRS, 29 rue Marvig, F-31055 Toulouse Cedex 4, France
| | - Kyohei Matsuo
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Naoki Aratani
- Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Hiroko Yamada
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Gwénaël Rapenne
- CEMES, Université de Toulouse, CNRS, 29 rue Marvig, F-31055 Toulouse Cedex 4, France
- Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Claire Kammerer
- CEMES, Université de Toulouse, CNRS, 29 rue Marvig, F-31055 Toulouse Cedex 4, France
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5
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Padniuk I, Stoica O, Zuzak R, Blieck R, Krawiec M, Godlewski S, Echavarren AM. On surface synthesis of an eleven-ring sulfur-doped nonacene. Chem Commun (Camb) 2024; 60:858-861. [PMID: 38131529 DOI: 10.1039/d3cc05486a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Dithienoacenes with a heptacene core, heptaceno[2,3-b:11,12-b']bis[1]benzothiophene, have been synthesized through the combination of solution and surface assisted chemistry. The atomic composition, structural arrangement and electronic properties of the molecules on the Au(111) surface have been deeply explored by non-contact atomic force microscopy (nc-AFM), bond-resolved scanning tunnelling microscopy (BR-STM) and scanning tunneling spectroscopy (STS) corroborated by density functional theory (DFT) calculations. Our combined experiments reveal modifications induced by sulfur substitution.
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Affiliation(s)
- Irena Padniuk
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, Krakow PL 30-348, Poland.
- Jagiellonian University, Doctoral School of Exact and Natural Sciences, Prof. St. Łojasiewicza St 11, PL30348, Cracow, Poland
| | - Otilia Stoica
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Avenida Països Catalans 16, Tarragona 43007, Spain.
- Departament de Química Organica i Analítica, Universitat Rovira i Virgili, C/Marcell·lí Domingo s/n, Tarragona 43007, Spain
| | - Rafal Zuzak
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, Krakow PL 30-348, Poland.
| | - Remi Blieck
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Avenida Països Catalans 16, Tarragona 43007, Spain.
- Departament de Química Organica i Analítica, Universitat Rovira i Virgili, C/Marcell·lí Domingo s/n, Tarragona 43007, Spain
| | - Mariusz Krawiec
- Institute of Physics, Maria Curie-Sklodowska University, Pl. M. Curie-Skłodowskiej 1, Lublin 20-031, Poland.
| | - Szymon Godlewski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, Krakow PL 30-348, Poland.
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Avenida Països Catalans 16, Tarragona 43007, Spain.
- Departament de Química Organica i Analítica, Universitat Rovira i Virgili, C/Marcell·lí Domingo s/n, Tarragona 43007, Spain
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6
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Boné T, Windischbacher A, Scheucher L, Presel F, Schnabl P, Wagner MS, Bettinger HF, Peisert H, Chassé T, Puschnig P, Ramsey MG, Sterrer M, Koller G. Orientation, electronic decoupling and band dispersion of heptacene on modified and nanopatterned copper surfaces. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 35:475003. [PMID: 37586386 DOI: 10.1088/1361-648x/acf105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/16/2023] [Indexed: 08/18/2023]
Abstract
The adsorption of heptacene (7 A) on Cu(110) and Cu(110)-(2 × 1)-O was studied with scanning tunneling microscopy, photoemission orbital tomography and density functional calculations to reveal the influence of surface passivation on the molecular geometry and electronic states. We found that the charge transfer into the 7 A molecules on Cu(110) is completely suppressed for the oxygen-modified Cu surface. The molecules are aligned along the Cu-O rows and uncharged. They are tilted due to the geometry enforced by the substrate and the ability to maximize intermolecular π-π overlap, which leads to strong π-band dispersion. The HOMO-LUMO gap of these decoupled molecules is significantly larger than that reported on weakly interacting metal surfaces. Finally, the Cu-O stripe phase was used as a template for nanostructured molecular growth and to assess possible confinement effects.
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Affiliation(s)
- Thomas Boné
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Andreas Windischbacher
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Lukas Scheucher
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Francesco Presel
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Paul Schnabl
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Marie S Wagner
- Institute of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
- Institute of Organic Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Holger F Bettinger
- Institute of Organic Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Heiko Peisert
- Institute of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Thomas Chassé
- Institute of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Peter Puschnig
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Michael G Ramsey
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Martin Sterrer
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Georg Koller
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
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7
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Soleimani M, Pourfath M. A comprehensive investigation of the plasmonic-photocatalytic properties of gold nanoparticles for CO 2 conversion to chemicals. NANOSCALE 2023; 15:7051-7067. [PMID: 36974912 DOI: 10.1039/d3nr00566f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Understanding the interactions between plasmonic gold (Au) nanoparticles and the adsorbate is essential for photocatalytic and plasmonic applications. However, it is often challenging to identify a specific reaction mechanism in the ground state and to explore the optical properties in the excited states because of the complicated pathways of carriers. In this study, photocatalytic reduction of carbon dioxide (CO2) to C1 products (for example, CO and CH4) on the Au(111) nanoparticle (NP) surface was studied based on reaction pathway analysis, adsorbate reactivity, and its ability to stabilize or deactivate the surface. The calculated reaction Gibbs free energies and activation barriers revealed that the first step in CO reduction via a direct hydrogen transfer mechanism on Au(111) is the formation of formyl (*CHO) instead of hydroxymethylidyne (*COH). Furthermore, the size enhanced and symmetry sensitive optical responses of cuboctahedral Au(111) NPs on localized surface plasmon resonance (LSPR) were investigated by using time-dependent DFT (TDDFT) calculations. Although near field enhancement around cuboctahedral Au(111) NPs is only weakly dependent on the morphology of NPs, it was observed that corner sites stabilize *C-species to drive the CO2 reduction to CO. The density of active surface states interacting with the adsorbate states near the Fermi level gradually decreases from the (111) on-top site toward the corner site of the Au(111) NP-CO system, which strongly affects the molecule's binding on catalytic sites and, in particular, electronic excitation. Finally, the spatial distribution of the charge oscillations was determined as a guide for the fabrication of Au NPs with an optimal LSPR response.
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Affiliation(s)
- Maryam Soleimani
- School of Electrical and Computer Engineering, University College of Engineering, University of Tehran, Tehran 14395-515, Iran.
| | - Mahdi Pourfath
- School of Electrical and Computer Engineering, University College of Engineering, University of Tehran, Tehran 14395-515, Iran.
- Institute for Microelectronics/E360, TU Wien, A-1040 Vienna, Austria
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8
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Biswas K, Urgel JI, Ajayakumar MR, Ma J, Sánchez-Grande A, Edalatmanesh S, Lauwaet K, Mutombo P, Gallego JM, Miranda R, Jelínek P, Feng X, Écija D. Synthesis and Characterization of peri-Heptacene on a Metallic Surface. Angew Chem Int Ed Engl 2022; 61:e202114983. [PMID: 35170842 DOI: 10.1002/anie.202114983] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Indexed: 11/09/2022]
Abstract
The synthesis of long n-peri-acenes (n-PAs) is challenging as a result of their inherent open-shell radical character, which arises from the presence of parallel zigzag edges beyond a certain n value. They are considered as π-electron model systems to study magnetism in graphene nanostructures; being potential candidates in the fabrication of optoelectronic and spintronic devices. Here, we report the on-surface formation of the largest pristine member of the n-PA family, i.e. peri-heptacene (n=7, 7-PA), obtained on an Au(111) substrate under ultra-high vacuum conditions. Our high-resolution scanning tunneling microscopy investigations, complemented by theoretical simulations, provide insight into the chemical structure of this previously elusive compound. In addition, scanning tunneling spectroscopy reveals the antiferromagnetic open-shell singlet ground state of 7-PA, exhibiting singlet-triplet spin-flip inelastic excitations with an effective exchange coupling (Jeff ) of 49 meV.
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Affiliation(s)
- Kalyan Biswas
- IMDEA Nanoscience, C/ Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain
| | - José I Urgel
- IMDEA Nanoscience, C/ Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain
| | - M R Ajayakumar
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062, Dresden, Germany
| | - Ji Ma
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062, Dresden, Germany
| | - Ana Sánchez-Grande
- IMDEA Nanoscience, C/ Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain
| | - Shayan Edalatmanesh
- Institute of Physics of the Czech Academy of Science, 16253, Praha, Czech Republic.,Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, 771 46, Olomouc, Czech Republic
| | - Koen Lauwaet
- IMDEA Nanoscience, C/ Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain
| | - Pingo Mutombo
- Institute of Physics of the Czech Academy of Science, 16253, Praha, Czech Republic
| | - José M Gallego
- Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049, Madrid, Spain
| | - Rodolfo Miranda
- IMDEA Nanoscience, C/ Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain.,Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Pavel Jelínek
- Institute of Physics of the Czech Academy of Science, 16253, Praha, Czech Republic.,Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, 771 46, Olomouc, Czech Republic
| | - Xinliang Feng
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062, Dresden, Germany
| | - David Écija
- IMDEA Nanoscience, C/ Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain
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9
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Synthesis of oligoacenes using precursors for evaluation of their electronic structures. Photochem Photobiol Sci 2022; 21:1511-1532. [PMID: 35670917 DOI: 10.1007/s43630-022-00235-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/13/2022] [Indexed: 10/18/2022]
Abstract
Acenes, which are hydrocarbons comprising linearly fused benzene rings, have attracted considerable attention owing to their electronic structures and utility as organic electronic materials. However, the ease with which oligoacenes undergo oxidation increases with the number of linearly fused benzene rings owing to the increased energy of the highest occupied molecular orbital. The synthesis of naked oligoacenes with seven or more benzene rings is difficult because their open-shell structure renders them unstable. The recent development of a precursor method has enabled the in situ synthesis of oligoacenes under specific conditions and the spectroscopic observation of oligoacene in single crystals, in film matrices and under cryogenic conditions. Scanning tunneling microscopy and non-contact atomic force microscopy under ultra-high vacuum conditions have also made significant advances in the study of oligoacenes and oligoazaacenes. This paper reviews the recent progress in the synthesis of oligoacenes using precursors, with a particular focus on the chemical structures, synthesis, and reactivity of the precursors. The electronic properties of oligoacenes are also discussed in relation to the number of fused benzene rings, including their energy levels and spin states. These results will contribute to the synthesis and development of carbon nanomaterials with applications in the field of organic electronics.
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10
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Biswas K, Urgel JI, Ajayakumar MR, Ma J, Sánchez‐Grande A, Edalatmanesh S, Lauwaet K, Mutombo P, Gallego JM, Miranda R, Jelínek P, Feng X, Écija D. Synthesis and Characterization of
peri
‐Heptacene on a Metallic Surface. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kalyan Biswas
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - José I. Urgel
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - M. R. Ajayakumar
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - Ji Ma
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - Ana Sánchez‐Grande
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - Shayan Edalatmanesh
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 771 46 Olomouc Czech Republic
| | - Koen Lauwaet
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - Pingo Mutombo
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
| | - José M. Gallego
- Instituto de Ciencia de Materiales de Madrid CSIC 28049 Madrid Spain
| | - Rodolfo Miranda
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
- Departamento de Física de la Materia Condensada Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Pavel Jelínek
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 771 46 Olomouc Czech Republic
| | - Xinliang Feng
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry Technical University of Dresden 01062 Dresden Germany
| | - David Écija
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
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11
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Sättele MS, Windischbacher A, Greulich K, Egger L, Haags A, Kirschner H, Ovsyannikov R, Giangrisostomi E, Gottwald A, Richter M, Soubatch S, Tautz FS, Ramsey MG, Puschnig P, Koller G, Bettinger HF, Chassé T, Peisert H. Hexacene on Cu(110) and Ag(110): Influence of the Substrate on Molecular Orientation and Interfacial Charge Transfer. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:5036-5045. [PMID: 35330758 PMCID: PMC8935373 DOI: 10.1021/acs.jpcc.2c00081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Hexacene, composed of six linearly fused benzene rings, is an organic semiconductor material with superior electronic properties. The fundamental understanding of the electronic and chemical properties is prerequisite to any possible application in devices. We investigate the orientation and interface properties of highly ordered hexacene monolayers on Ag(110) and Cu(110) with X-ray photoemission spectroscopy (XPS), photoemission orbital tomography (POT), X-ray absorption spectroscopy (XAS), low-energy electron diffraction (LEED), scanning tunneling microscopy (STM), and density functional theory (DFT). We find pronounced differences in the structural arrangement of the molecules and the electronic properties at the metal/organic interfaces for the two substrates. While on Cu(110) the molecules adsorb with their long molecular axis parallel to the high symmetry substrate direction, on Ag(110), hexacene adsorbs in an azimuthally slightly rotated geometry with respect to the metal rows of the substrate. In both cases, molecular planes are oriented parallel to the substrate. A pronounced charge transfer from both substrates to different molecular states affects the effective charge of different C atoms of the molecule. Through analysis of experimental and theoretical data, we found out that on Ag(110) the LUMO of the molecule is occupied through charge transfer from the metal, whereas on Cu(110) even the LUMO+1 receives a charge. Interface dipoles are determined to a large extent by the push-back effect, which are also found to differ significantly between 6A/Ag(110) and 6A/Cu(110).
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Affiliation(s)
- Marie S Sättele
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Andreas Windischbacher
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Katharina Greulich
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Larissa Egger
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Anja Haags
- Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
- Jülich Aachen Research Alliance (JARA), Fundamentals of Future Information Technology, 52425 Jülich, Germany
- Experimental Physics IV A, RWTH Aachen University, 52074 Aachen, Germany
| | - Hans Kirschner
- Physikalisch-Technische Bundesanstalt, Abbestrasse 2-12, 10587 Berlin, Germany
| | - Ruslan Ovsyannikov
- Institute for Methods and Instrumentation in Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Erika Giangrisostomi
- Institute for Methods and Instrumentation in Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Alexander Gottwald
- Physikalisch-Technische Bundesanstalt, Abbestrasse 2-12, 10587 Berlin, Germany
| | - Mathias Richter
- Physikalisch-Technische Bundesanstalt, Abbestrasse 2-12, 10587 Berlin, Germany
| | - Serguei Soubatch
- Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
- Jülich Aachen Research Alliance (JARA), Fundamentals of Future Information Technology, 52425 Jülich, Germany
| | - F Stefan Tautz
- Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
- Jülich Aachen Research Alliance (JARA), Fundamentals of Future Information Technology, 52425 Jülich, Germany
- Experimental Physics IV A, RWTH Aachen University, 52074 Aachen, Germany
| | - Michael G Ramsey
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Peter Puschnig
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Georg Koller
- Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria
| | - Holger F Bettinger
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Thomas Chassé
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
- Center for Light-Matter Interaction, Sensors & Analytics (LISA+), University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Heiko Peisert
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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12
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Eimre K, Urgel JI, Hayashi H, Di Giovannantonio M, Ruffieux P, Sato S, Otomo S, Chan YS, Aratani N, Passerone D, Gröning O, Yamada H, Fasel R, Pignedoli CA. On-surface synthesis and characterization of nitrogen-substituted undecacenes. Nat Commun 2022; 13:511. [PMID: 35082284 PMCID: PMC8791976 DOI: 10.1038/s41467-022-27961-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 12/17/2021] [Indexed: 02/05/2023] Open
Abstract
Heteroatom substitution in acenes allows tailoring of their remarkable electronic properties, expected to include spin-polarization and magnetism for larger members of the acene family. Here, we present a strategy for the on-surface synthesis of three undecacene analogs substituted with four nitrogen atoms on an Au(111) substrate, by employing specifically designed diethano-bridged precursors. A similarly designed precursor is used to synthesize the pristine undecacene molecule. By comparing experimental features of scanning probe microscopy with ab initio simulations, we demonstrate that the ground state of the synthesized tetraazaundecacene has considerable open-shell character on Au(111). Additionally, we demonstrate that the electronegative nitrogen atoms induce a considerable shift in energy level alignment compared to the pristine undecacene, and that the introduction of hydro-aza groups causes local anti-aromaticity in the synthesized compounds. Our work provides access to the precise fabrication of nitrogen-substituted acenes and their analogs, potential building-blocks of organic electronics and spintronics, and a rich playground to explore π-electron correlation.
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Affiliation(s)
- Kristjan Eimre
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland.
| | - 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.
| | - Hironobu Hayashi
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
- Istituto di Struttura della Materia-CNR (ISM-CNR), via Fosso del Cavaliere 100, 00133, Roma, Italy
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Shizuka Sato
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Satoru Otomo
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Yee Seng Chan
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Naoki Aratani
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Daniele Passerone
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Oliver Gröning
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Hiroko Yamada
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland.
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland.
| | - Carlo A Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland.
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13
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Jančařík A, Holec J, Nagata Y, Šámal M, Gourdon A. Preparative-scale synthesis of nonacene. Nat Commun 2022; 13:223. [PMID: 35017480 PMCID: PMC8752783 DOI: 10.1038/s41467-021-27809-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 12/03/2021] [Indexed: 11/30/2022] Open
Abstract
During the last years we have witnessed progressive evolution of preparation of acenes with length up to dodecacene by on-surface synthesis in ultra-high vacuum or generation of acenes up to decacene in solid matrices at low temperatures. While these protocols with very specific conditions produce the acenes in amount of few molecules, the strategies leading to the acenes in large quantities dawdle behind. Only recently and after 70 years of synthetic attempts, heptacene has been prepared in bulk phase. However, the preparative scale synthesis of higher homologues still remains a formidable challenge. Here we report the preparation and characterisation of nonacene and show its excellent thermal and in-time stability. Acenes, or linearly fused benzene rings, have both fundamental scientific interest and potential for electronic and material utility, but synthesis of acenes with more than six rings are difficult due to dimerization and degradation. Here the authors prepare nonacene and demonstrate that it is stable in inert conditions.
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Affiliation(s)
- Andrej Jančařík
- GNS Group, CEMES-CNRS, 29 Rue J. Marvig, 31055, Toulouse, France. .,Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610, Prague 6, Czech Republic. .,Univ. Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR 5031, 33600, Pessac, France.
| | - Jan Holec
- GNS Group, CEMES-CNRS, 29 Rue J. Marvig, 31055, Toulouse, France
| | - Yuuya Nagata
- Japan Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
| | - Michal Šámal
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610, Prague 6, Czech Republic
| | - Andre Gourdon
- GNS Group, CEMES-CNRS, 29 Rue J. Marvig, 31055, Toulouse, France.
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14
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Grossmann L, Duncan DA, Jarvis SP, Jones RG, De S, Rosen J, Schmittel M, Heckl WM, Björk J, Lackinger M. Evolution of adsorption heights in the on-surface synthesis and decoupling of covalent organic networks on Ag(111) by normal-incidence X-ray standing wave. NANOSCALE HORIZONS 2021; 7:51-62. [PMID: 34889932 DOI: 10.1039/d1nh00486g] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Structural characterization in on-surface synthesis is primarily carried out by Scanning Probe Microscopy (SPM) which provides high lateral resolution. Yet, important fresh perspectives on surface interactions and molecular conformations are gained from adsorption heights that remain largely inaccessible to SPM, but can be precisely measured with both elemental and chemical sensitivity by Normal-Incidence X-ray Standing Wave (NIXSW) analysis. Here, we study the evolution of adsorption heights in the on-surface synthesis and post-synthetic decoupling of porous covalent triazine-phenylene networks obtained from 2,4,6-tris(4-bromophenyl)-1,3,5-triazine (TBPT) precursors on Ag(111). Room temperature deposition of TBPT and mild annealing to ∼150 °C result in full debromination and formation of organometallic intermediates, where the monomers are linked into reticulated networks by C-Ag-C bonds. Topologically identical covalent networks comprised of triazine vertices that are interconnected by biphenyl units are obtained by a thermally activated chemical transformation of the organometallic intermediates. Exposure to iodine vapor facilitates decoupling by intercalation of an iodine monolayer between the covalent networks and the Ag(111) surface. Accordingly, Scanning Tunneling Microscopy (STM), X-ray Photoelectron Spectroscopy (XPS) and NIXSW experiments are carried out for three successive sample stages: organometallic intermediates, covalent networks directly on Ag(111) and after decoupling. NIXSW analysis facilitates the determination of adsorption heights of chemically distinct carbon species, i.e. in the phenyl and triazine rings, and also for the organometallic carbon atoms. Thereby, molecular conformations are assessed for each sample stage. The interpretation of experimental results is informed by Density Functional Theory (DFT) calculations, providing a consistent picture of adsorption heights and molecular deformations in the networks that result from the interplay between steric hindrance and surface interactions. Quantitative adsorption heights, i.e. vertical distances between adsorbates and surface, provide detailed insight into surface interactions, but are underexplored in on-surface synthesis. In particular, the direct comparison with an in situ prepared decoupled state unveils the surface influence on the network structure, and shows that iodine intercalation is a powerful decoupling strategy.
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Affiliation(s)
- Lukas Grossmann
- Deutsches Museum, Museumsinsel 1, 80538 München, Germany.
- Technische Universität München, Physics Department, James-Franck-Strasse 1, 85748 Garching, Germany
| | - David A Duncan
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
| | - Samuel P Jarvis
- Lancaster University, Physics Department, Lancaster LA1 4YB, UK
| | - Robert G Jones
- University of Nottingham, Department of Physical Chemistry, School of Chemistry, Nottingham NG7 2RD, UK
| | - Soumen De
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
| | - Johanna Rosen
- Linköping University, Department of Physics, Chemistry and Biology, IFM, 581 83 Linköping, Sweden
| | - Michael Schmittel
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
| | - Wolfgang M Heckl
- Deutsches Museum, Museumsinsel 1, 80538 München, Germany.
- Technische Universität München, Physics Department, James-Franck-Strasse 1, 85748 Garching, Germany
| | - Jonas Björk
- Linköping University, Department of Physics, Chemistry and Biology, IFM, 581 83 Linköping, Sweden
| | - Markus Lackinger
- Deutsches Museum, Museumsinsel 1, 80538 München, Germany.
- Technische Universität München, Physics Department, James-Franck-Strasse 1, 85748 Garching, Germany
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15
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Ayani CG, Pisarra M, Urgel JI, Navarro JJ, Díaz C, Hayashi H, Yamada H, Calleja F, Miranda R, Fasel R, Martín F, Vázquez de Parga AL. Efficient photogeneration of nonacene on nanostructured graphene. NANOSCALE HORIZONS 2021; 6:744-750. [PMID: 34165121 DOI: 10.1039/d1nh00184a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The on-surface photogeneration of nonacene from α-bisdiketone precursors deposited on nanostructured epitaxial graphene grown on Ru(0001) has been studied by means of low temperature scanning tunneling microscopy and spectroscopy. The presence of an unoccupied surface state, spatially localized in the regions where the precursors are adsorbed, and energetically accessible in the region of the electromagnetic spectrum where n-π* transitions take place, allows for a 100% conversion of the precursors into nonacenes. With the help of state-of-the-art theoretical calculations, we show that such a high yield is due to the effective population of the surface state by the incoming light and the ensuing electron transfer to the unoccupied states of the precursors through an inelastic scattering mechanism. Our findings are the experimental confirmation that surface states can play a prominent role in the surface photochemistry of complex molecular systems, in accordance with early theoretical predictions made on small molecules.
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Affiliation(s)
- Cosme G Ayani
- Dep Física de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco 28049, Madrid, Spain.
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16
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Han D, Zhu J. Surface-assisted fabrication of low-dimensional carbon-based nanoarchitectures. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:343001. [PMID: 34111858 DOI: 10.1088/1361-648x/ac0a1b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/10/2021] [Indexed: 06/12/2023]
Abstract
On-surface synthesis, as an alternative to traditional in-solution synthesis, has become an emerging research field and attracted extensive attention over the past decade due to its ability to fabricate nanoarchitectures with exotic properties. Compared to wet chemistry, the on-surface synthesis conducted on atomically flat solid surfaces under ultrahigh vacuum exhibits unprecedented characteristics and advantages, opening novel reaction pathways for chemical synthesis. Various low-dimensional nanostructures have been fabricated on solid surfaces (mostly metal surfaces) based on this newly developed approach. This paper reviews the classic and latest works regarding carbon-based low-dimensional nanostructures since the arrival of on-surface synthesis era. These nanostructures are categorized into zero-, one- and two-dimensional classes and each class is composed of numerous sub-nanostructures. For certain specific nanostructures, comprehensive reports are given, including precursor design, substrate choice, synthetic strategies and so forth. We hope that our review will shed light on the fabrication of some significant nanostructures in this young and promising scientific area.
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Affiliation(s)
- Dong Han
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, People's Republic of China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, People's Republic of China
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17
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Boné T, Windischbacher A, Sättele MS, Greulich K, Egger L, Jauk T, Lackner F, Bettinger HF, Peisert H, Chassé T, Ramsey MG, Sterrer M, Koller G, Puschnig P. Demonstrating the Impact of the Adsorbate Orientation on the Charge Transfer at Organic-Metal Interfaces. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:9129-9137. [PMID: 34055126 PMCID: PMC8154845 DOI: 10.1021/acs.jpcc.1c01306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Charge-transfer processes at molecule-metal interfaces play a key role in tuning the charge injection properties in organic-based devices and thus, ultimately, the device performance. Here, the metal's work function and the adsorbate's electron affinity are the key factors that govern the electron transfer at the organic/metal interface. In our combined experimental and theoretical work, we demonstrate that the adsorbate's orientation may also be decisive for the charge transfer. By thermal cycloreversion of diheptacene isomers, we manage to produce highly oriented monolayers of the rodlike, electron-acceptor molecule heptacene on a Cu(110) surface with molecules oriented either along or perpendicular to the close-packed metal rows. This is confirmed by scanning tunneling microscopy (STM) images as well as by angle-resolved ultraviolet photoemission spectroscopy (ARUPS). By utilizing photoemission tomography momentum maps, we show that the lowest unoccupied molecular orbital (LUMO) is fully occupied and also, the LUMO + 1 gets significantly filled when heptacene is oriented along the Cu rows. Conversely, for perpendicularly aligned heptacene, the molecular energy levels are shifted significantly toward the Fermi energy, preventing charge transfer to the LUMO + 1. These findings are fully confirmed by our density functional calculations and demonstrate the possibility to tune the charge transfer and level alignment at organic-metal interfaces through the adjustable molecular alignment.
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Affiliation(s)
| | | | - Marie S. Sättele
- Institute
of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
- Institute
of Organic Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Katharina Greulich
- Institute
of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Larissa Egger
- Institute
of Physics, University of Graz, 8010 Graz, Austria
| | - Thomas Jauk
- Institute
of Experimental Physics, Graz University of Technology, 8010 Graz, Austria
| | - Florian Lackner
- Institute
of Experimental Physics, Graz University of Technology, 8010 Graz, Austria
| | - Holger F. Bettinger
- Institute
of Organic Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Heiko Peisert
- Institute
of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Thomas Chassé
- Institute
of Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany
| | | | - Martin Sterrer
- Institute
of Physics, University of Graz, 8010 Graz, Austria
| | - Georg Koller
- Institute
of Physics, University of Graz, 8010 Graz, Austria
| | - Peter Puschnig
- Institute
of Physics, University of Graz, 8010 Graz, Austria
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18
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Tönshoff C, Bettinger HF. Pushing the Limits of Acene Chemistry: The Recent Surge of Large Acenes. Chemistry 2021; 27:3193-3212. [PMID: 33368683 PMCID: PMC7898397 DOI: 10.1002/chem.202003112] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/18/2020] [Indexed: 11/11/2022]
Abstract
Acenes, consisting of linearly fused benzene rings, are an important fundamental class of organic compounds with various applications. Hexacene is the largest acene that was synthesized and isolated in the 20th century. The next largest member of the acene family, heptacene, was observed in 2007 and since then significant progress in preparing acenes has been reported. Significantly larger acenes, up to undecacene, could be studied by means of low-temperature matrix isolation spectroscopy with in situ photolytic generation, and up to dodecacene by means of on-surface synthesis employing innovative precursors and highly defined crystalline metal surfaces under ultrahigh vacuum conditions. The review summarizes recent experimental and theoretical advances in the area of acenes that give a significantly deeper insight into the fundamental properties and nature of the electronic structure of this fascinating class of organic compounds.
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Affiliation(s)
- Christina Tönshoff
- Institut für Organische ChemieUniversität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Holger F. Bettinger
- Institut für Organische ChemieUniversität TübingenAuf der Morgenstelle 1872076TübingenGermany
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19
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Sättele M, Windischbacher A, Egger L, Haags A, Hurdax P, Kirschner H, Gottwald A, Richter M, Bocquet F, Soubatch S, Tautz FS, Bettinger HF, Peisert H, Chassé T, Ramsey MG, Puschnig P, Koller G. Going beyond Pentacene: Photoemission Tomography of a Heptacene Monolayer on Ag(110). THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:2918-2925. [PMID: 33603943 PMCID: PMC7883341 DOI: 10.1021/acs.jpcc.0c09062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Longer acenes such as heptacene are promising candidates for optoelectronic applications but are unstable in their bulk structure as they tend to dimerize. This makes the growth of well-defined monolayers and films problematic. In this article, we report the successful preparation of a highly oriented monolayer of heptacene on Ag(110) by thermal cycloreversion of diheptacenes. In a combined effort of angle-resolved photoemission spectroscopy and density functional theory (DFT) calculations, we characterize the electronic and structural properties of the molecule on the surface in detail. Our investigations allow us to unambiguously confirm the successful fabrication of a highly oriented complete monolayer of heptacene and to describe its electronic structure. By comparing experimental momentum maps of photoemission from frontier orbitals of heptacene and pentacene, we shed light on differences between these two acenes regarding their molecular orientation and energy-level alignment on the metal surfaces.
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Affiliation(s)
- Marie
S. Sättele
- Institute
of Physical and Theoretical Chemistry, University
of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
- Institute
of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Andreas Windischbacher
- Institute
of Physics, University of Graz, NAWI Graz, Universitätsplatz
5, 8010 Graz, Austria
| | - Larissa Egger
- Institute
of Physics, University of Graz, NAWI Graz, Universitätsplatz
5, 8010 Graz, Austria
| | - Anja Haags
- Peter
Grünberg Institut (PGI-3), Forschungszentrum
Jülich, 52425 Jülich, Germany
- Jülich
Aachen Research Alliance (JARA), Fundamentals
of Future Information Technology, 52425 Jülich, Germany
- Experimental
Physics IV A, RWTH Aachen University, 52074 Aachen, Germany
| | - Philipp Hurdax
- Institute
of Physics, University of Graz, NAWI Graz, Universitätsplatz
5, 8010 Graz, Austria
| | - Hans Kirschner
- Physikalisch-Technische
Bundesanstalt, Abbestr.
2-12, 10587 Berlin, Germany
| | - Alexander Gottwald
- Physikalisch-Technische
Bundesanstalt, Abbestr.
2-12, 10587 Berlin, Germany
| | - Mathias Richter
- Physikalisch-Technische
Bundesanstalt, Abbestr.
2-12, 10587 Berlin, Germany
| | - François
C. Bocquet
- Peter
Grünberg Institut (PGI-3), Forschungszentrum
Jülich, 52425 Jülich, Germany
- Jülich
Aachen Research Alliance (JARA), Fundamentals
of Future Information Technology, 52425 Jülich, Germany
| | - Serguei Soubatch
- Peter
Grünberg Institut (PGI-3), Forschungszentrum
Jülich, 52425 Jülich, Germany
- Jülich
Aachen Research Alliance (JARA), Fundamentals
of Future Information Technology, 52425 Jülich, Germany
| | - F. Stefan Tautz
- Peter
Grünberg Institut (PGI-3), Forschungszentrum
Jülich, 52425 Jülich, Germany
- Jülich
Aachen Research Alliance (JARA), Fundamentals
of Future Information Technology, 52425 Jülich, Germany
- Experimental
Physics IV A, RWTH Aachen University, 52074 Aachen, Germany
| | - Holger F. Bettinger
- Institute
of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Heiko Peisert
- Institute
of Physical and Theoretical Chemistry, University
of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Thomas Chassé
- Institute
of Physical and Theoretical Chemistry, University
of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Michael G. Ramsey
- Institute
of Physics, University of Graz, NAWI Graz, Universitätsplatz
5, 8010 Graz, Austria
| | - Peter Puschnig
- Institute
of Physics, University of Graz, NAWI Graz, Universitätsplatz
5, 8010 Graz, Austria
| | - Georg Koller
- Institute
of Physics, University of Graz, NAWI Graz, Universitätsplatz
5, 8010 Graz, Austria
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20
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Curcio D, Sierda E, Pozzo M, Bignardi L, Sbuelz L, Lacovig P, Lizzit S, Alfè D, Baraldi A. Unusual reversibility in molecular break-up of PAHs: the case of pentacene dehydrogenation on Ir(111). Chem Sci 2021; 12:170-178. [PMID: 34168740 PMCID: PMC8179676 DOI: 10.1039/d0sc03734f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, we characterise the adsorption of pentacene molecules on Ir(111) and their dissociation behaviour as a function of temperature.
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Affiliation(s)
- Davide Curcio
- Department of Physics, University of Trieste, Via Valerio 2, 34127 Trieste, Italy
| | - Emil Sierda
- Department of Physics, University of Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany
- Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland
| | - Monica Pozzo
- Department of Earth Sciences, Thomas Young Center, University College London, 5 Gower Place, London WC1E 6BS, UK
- London Centre for Nanotechnology, Thomas Young Centre, University College London, 17-19 Gordon Street, London WC1H 0AH, UK
| | - Luca Bignardi
- Department of Physics, University of Trieste, Via Valerio 2, 34127 Trieste, Italy
| | - Luca Sbuelz
- Department of Physics, University of Trieste, Via Valerio 2, 34127 Trieste, Italy
| | - Paolo Lacovig
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, 34149 Trieste, Italy
| | - Silvano Lizzit
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, 34149 Trieste, Italy
| | - Dario Alfè
- Department of Earth Sciences, Thomas Young Center, University College London, 5 Gower Place, London WC1E 6BS, UK
- London Centre for Nanotechnology, Thomas Young Centre, University College London, 17-19 Gordon Street, London WC1H 0AH, UK
- Dipartimento di Fisica “Ettore Pancini”, Università di Napoli “Federico II”, Monte S. Angelo, 80126 Napoli, Italy
| | - Alessandro Baraldi
- Department of Physics, University of Trieste, Via Valerio 2, 34127 Trieste, Italy
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, 34149 Trieste, Italy
- IOM-CNR, Laboratorio TASC, Strada Statale 14 - km 163.5 in AREA Science Park, 34149 Trieste, Italy
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21
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Hayashi H, Hieda N, Yamauchi M, Chan YS, Aratani N, Masuo S, Yamada H. Visible‐Light‐Induced Heptacene Generation under Ambient Conditions: Utilization of Single‐crystal Interior as an Isolated Reaction Site. Chemistry 2020; 26:15079-15083. [DOI: 10.1002/chem.202002155] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Hironobu Hayashi
- Division of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Nao Hieda
- Division of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Mitsuaki Yamauchi
- Department of Applied Chemistry for Environment Kwansei Gakuin University 2-1 Gakuen Sanda Hyogo 669-1337 Japan
| | - Yee Seng Chan
- Division of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Naoki Aratani
- Division of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Sadahiro Masuo
- Department of Applied Chemistry for Environment Kwansei Gakuin University 2-1 Gakuen Sanda Hyogo 669-1337 Japan
| | - Hiroko Yamada
- Division of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
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22
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Abstract
In the past decade, on-surface chemistry has provided fascinating concepts for the construction of covalently bonded molecular nanostructures and the exploration of new synthetic pathways that may be different from chemical synthesis in solution. Although the intermolecular reaction of precursor molecules may lead to the formation of the desired low-dimensional molecular architectures, it remains challenging to realize defect-free syntheses over large areas. Recently, intramolecular on-surface reactions have attracted increasing attention because they offer promising ways to synthesize functional organic molecules, especially those with extended conjugated π-systems. In this Perspective, we summarize the recent achievements in the field of on-surface intramolecular reactions and discuss future prospects.
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Affiliation(s)
- Biao Yang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P.R. China
| | - Bin Dong
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P.R. China
| | - Lifeng Chi
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P.R. China
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23
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Chen W, Yu F, Xu Q, Zhou G, Zhang Q. Recent Progress in High Linearly Fused Polycyclic Conjugated Hydrocarbons (PCHs, n > 6) with Well-Defined Structures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903766. [PMID: 32596114 PMCID: PMC7312318 DOI: 10.1002/advs.201903766] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/17/2020] [Indexed: 05/05/2023]
Abstract
Although polycyclic conjugated hydrocarbons (PCHs) and their analogues have gained great progress in the fields of organic photoelectronic materials, the in-depth study on present PCHs is still limited to hexacene or below because longer PCHs are insoluble, unstable, and tediously synthesized. Very recently, various strategies including on-surface synthesis are developed to address these issues and many higher novel PCHs are constructed. Therefore, it is necessary to review these advances. Here, the recent synthetic approach, basic physicochemical properties, single-crystal packing behaviors, and potential applications of the linearly fused PCHs (higher than hexacene), including acenes or π-extended acenes with fused six-membered benzenoid rings and other four-membered, five-membered or even seven-membered and eight-membered fused compounds, are summarized.
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Affiliation(s)
- Wangqiao Chen
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper DisplaysNational Center for International Research on Green OptoelectronicsSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006P. R. China
- School of Materials Science and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Fei Yu
- School of Materials Science and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Qun Xu
- College of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper DisplaysNational Center for International Research on Green OptoelectronicsSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006P. R. China
| | - Qichun Zhang
- School of Materials Science and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
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24
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Levet G, Hung NK, Šámal M, Rybáček J, Cisařová I, Jancarik A, Gourdon A. Preparation of a Key Tetraene Precursor for the Synthesis of Long Acenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gaspard Levet
- CEMES-CNRS; 29, rue Jeanne Marvig 31055 Toulouse Cedex 04 France
| | | | - Michal Šámal
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences; 166 10 Prague 6 Czech Republic
| | - Jiří Rybáček
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences; 166 10 Prague 6 Czech Republic
| | - Ivana Cisařová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences; 166 10 Prague 6 Czech Republic
| | - Andrej Jancarik
- CEMES-CNRS; 29, rue Jeanne Marvig 31055 Toulouse Cedex 04 France
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences; 166 10 Prague 6 Czech Republic
| | - André Gourdon
- CEMES-CNRS; 29, rue Jeanne Marvig 31055 Toulouse Cedex 04 France
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25
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Su J, Telychko M, Song S, Lu J. Triangulenes: From Precursor Design to On‐Surface Synthesis and Characterization. Angew Chem Int Ed Engl 2020; 59:7658-7668. [DOI: 10.1002/anie.201913783] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Jie Su
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Centre for Advanced 2D Materials (CA2DM) National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore
| | - Mykola Telychko
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Centre for Advanced 2D Materials (CA2DM) National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore
| | - Shaotang Song
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Jiong Lu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Centre for Advanced 2D Materials (CA2DM) National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore
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26
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Su J, Telychko M, Song S, Lu J. Triangulenes: From Precursor Design to On‐Surface Synthesis and Characterization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913783] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jie Su
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Centre for Advanced 2D Materials (CA2DM) National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore
| | - Mykola Telychko
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Centre for Advanced 2D Materials (CA2DM) National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore
| | - Shaotang Song
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Jiong Lu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Centre for Advanced 2D Materials (CA2DM) National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore
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27
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Eisenhut F, Kühne T, García F, Fernández S, Guitián E, Pérez D, Trinquier G, Cuniberti G, Joachim C, Peña D, Moresco F. Dodecacene Generated on Surface: Reopening of the Energy Gap. ACS NANO 2020; 14:1011-1017. [PMID: 31829618 DOI: 10.1021/acsnano.9b08456] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The acene series represents a model system to investigate the intriguing electronic properties of extended π-electron structures in the one-dimensional limit, which are important for applications in electronics and spintronics and for the fundamental understanding of electronic transport. Here, we present the on-surface generation of the longest acene obtained so far: dodecacene. Scanning tunneling spectroscopy gives access to the energy position and spatial distribution of its electronic states on the Au(111) surface. We observe that, after a progressive closing of the gap and a stabilization to about 1 eV at the length of decacene and undecacene, the energy gap of dodecacene unexpectedly increases to 1.4 eV. Considering the acene series as an exemplary general case, we discuss the evolution with length of the single tunneling resonances in comparison with ionization energy, electronic affinity, and optical gap.
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Affiliation(s)
- Frank Eisenhut
- Center for Advancing Electronics Dresden , TU Dresden , 01069 Dresden , Germany
- Institute for Materials Science , TU Dresden , 01069 Dresden , Germany
| | - Tim Kühne
- Center for Advancing Electronics Dresden , TU Dresden , 01069 Dresden , Germany
- Institute for Materials Science , TU Dresden , 01069 Dresden , Germany
| | - Fátima García
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , Santiago de Compostela 15782 , Spain
| | - Saleta Fernández
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , Santiago de Compostela 15782 , Spain
| | - Enrique Guitián
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , Santiago de Compostela 15782 , Spain
| | - Dolores Pérez
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , Santiago de Compostela 15782 , Spain
| | - Georges Trinquier
- Laboratoire de Chimie et Physique Quantiques , IRSAMC-CNRS-UMR5626, Université Paul-Sabatier (Toulouse III) , 31062 Toulouse Cedex 4, France
| | - Gianaurelio Cuniberti
- Institute for Materials Science , TU Dresden , 01069 Dresden , Germany
- Dresden Center for Computational Materials Science (DCMS) , TU Dresden , 01069 Dresden , Germany
| | - Christian Joachim
- GNS & MANA Satellite, CEMES, CNRS , 29 rue J. Marvig , 31055 Toulouse Cedex, France
| | - Diego Peña
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , Santiago de Compostela 15782 , Spain
| | - Francesca Moresco
- Center for Advancing Electronics Dresden , TU Dresden , 01069 Dresden , Germany
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28
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Müller M, Maier S, Tverskoy O, Rominger F, Freudenberg J, Bunz UHF. Tetrabenzononacene: "Butterfly Wings" Stabilize the Core. Angew Chem Int Ed Engl 2020; 59:1966-1969. [PMID: 31724294 PMCID: PMC7004125 DOI: 10.1002/anie.201909614] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/24/2019] [Indexed: 11/29/2022]
Abstract
In combination with bulky substituents at the core, fourfold benzannulation at the cata‐positions stabilizes a nonacene sufficiently to allow its isolation and characterization by 1H NMR and X‐ray analysis. The four benzo units blueshift the absorption spectrum in comparison to a solely linear nonacene, but significantly increase the stability in the solid state.
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Affiliation(s)
- Matthias Müller
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Steffen Maier
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Olena Tverskoy
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Jan Freudenberg
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,InnovationLab, Speyerer Straße 4, 69115, Heidelberg, Germany
| | - Uwe H F Bunz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,Centre for Advanced Materials, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
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29
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Müller M, Maier S, Tverskoy O, Rominger F, Freudenberg J, Bunz UHF. Tetrabenzononacene: “Butterfly Wings” Stabilize the Core. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909614] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Matthias Müller
- Organisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Steffen Maier
- Organisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Olena Tverskoy
- Organisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jan Freudenberg
- Organisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
- InnovationLab Speyerer Straße 4 69115 Heidelberg Germany
| | - Uwe H. F. Bunz
- Organisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials Im Neuenheimer Feld 225 69120 Heidelberg Germany
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30
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Chen H, Zhu H, Huang Z, Rong W, Wu K. Two-Sidedness of Surface Reaction Mediation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902080. [PMID: 31418920 DOI: 10.1002/adma.201902080] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/10/2019] [Indexed: 06/10/2023]
Abstract
A heterogeneous catalytic process involves many surface elementary steps that affect the overall catalytic performance in one way or another. In general, a high-performance heterogeneous catalyst should meet the main criteria: excellent catalytic activity and high selectivity toward target products. Using surface science techniques, the two-sidedness of the surface reaction mediations can be explored, from the perspectives of the surface and the molecule manipulations. The surface manipulation refers to a reaction that is mediated by composition and structure of the substrate as well as surface species, while the molecular manipulation relates to a reaction that is mediated by the reacting molecule via the precursor selection, environmental control, or external excitation. The best catalytic system should consist of the most efficient catalyst and the best suitable reacting molecule, in addition to its economic benefit and environmental amity. Recent research progress in surface reaction mediation is outlined, and its two-sidedness is governed by the Arrhenius equation. This should shed new light on the connection between basic theory and surface reaction mediation strategies. To conclude, challenges and possible opportunities are elaborated for efficient surface reaction mediations.
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Affiliation(s)
- Haoran Chen
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Hao Zhu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zhichao Huang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Wenhui Rong
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Kai Wu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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31
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Photochemistry of various acene based molecules. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2018.12.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Urgel JI, Mishra S, Hayashi H, Wilhelm J, Pignedoli CA, Di Giovannantonio M, Widmer R, Yamashita M, Hieda N, Ruffieux P, Yamada H, Fasel R. On-surface light-induced generation of higher acenes and elucidation of their open-shell character. Nat Commun 2019; 10:861. [PMID: 30787280 PMCID: PMC6382834 DOI: 10.1038/s41467-019-08650-y] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 01/21/2019] [Indexed: 11/29/2022] Open
Abstract
Acenes are an important class of polycyclic aromatic hydrocarbons which have recently gained exceptional attention due to their potential as functional organic semiconductors. Fundamentally, they are important systems to study the convergence of physico-chemical properties of all-carbon sp2-frameworks in the one-dimensional limit; and by virtue of having a zigzag edge topology they also provide a fertile playground to explore magnetism in graphenic nanostructures. The study of larger acenes is thus imperative from both a fundamental and applied perspective, but their synthesis via traditional solution-chemistry route is hindered by their poor solubility and high reactivity. Here, we demonstrate the on-surface formation of heptacene and nonacene, via visible-light-induced photo-dissociation of α-bisdiketone precursors on an Au(111) substrate under ultra-high vacuum conditions. Through combined scanning tunneling microscopy/spectroscopy and non-contact atomic force microscopy investigations, together with state-of-the-art first principles calculations, we provide insight into the chemical and electronic structure of these elusive compounds.
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Affiliation(s)
- José I Urgel
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland
| | - Shantanu Mishra
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland
| | - Hironobu Hayashi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Jan Wilhelm
- Department of Chemistry, University of Zurich, 8057, Zurich, Switzerland
| | - Carlo A Pignedoli
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland
| | - Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland
| | - Roland Widmer
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland
| | - Masataka Yamashita
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Nao Hieda
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland
| | - Hiroko Yamada
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Material Science and Technology, 8600, Dübendorf, Switzerland.
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland.
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33
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Jancarik A, Levet G, Gourdon A. A Practical General Method for the Preparation of Long Acenes. Chemistry 2019; 25:2366-2374. [PMID: 30508267 DOI: 10.1002/chem.201805975] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 11/07/2022]
Abstract
The field of long acenes, the narrowest of the zig-zag graphene nanoribbons, has been an area of significant interest in the past decade because of its potential applications in organic electronics, spintronics and plasmonics. However the low solubility and high reactivity of these compounds has so far hindered their preparation on large scales. We report here a concise strategy for the synthesis of higher acenes through Diels-Alder condensation of arynes with a protected tetraene ketone. After deprotection by cleavage of the ketal, the obtained monoketone precursors cleanly yield the corresponding acenes through quantitative cheletropic thermal decarbonylation in the solid state, at moderate temperatures of 155 to 205 °C. This approach allows the preparation of heptacene, benzo[a]hexacene, cis- and trans-dibenzopentacene and offers a valuable new method for the synthesis of even larger acenes.
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Affiliation(s)
- Andrej Jancarik
- CEMES-CNR, 29 Rue J. Marvig, 31055, Toulouse, France.,Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, 16610, Prague 6, Czech Republic
| | - Gaspard Levet
- CEMES-CNRS, 29 Rue J. Marvig, 31055, Toulouse, France
| | - André Gourdon
- CEMES-CNRS, 29 Rue J. Marvig, 31055, Toulouse, France
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Abstract
We report the challenging synthesis and electronic properties of a new class of rhombic peri-fused acene dimers, the so-called peri-acenoacenes. Compared to rectangular peri-fused peri-acenes, peri-acenoacenes show less diradical character and higher stability. Two soluble and stable aryl-substituted peri-acenoacenes, peri-tetracenotetracene (TT-Ar) and peri-pentacenopentacene (PP-Ar), are synthesized and their structures are confirmed by X-ray crystallographic analysis. Their optical properties and electronic properties are different from those of peri-acene derivatives. Unexpectedly, both the neutral compounds and dications are aromatic.
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Affiliation(s)
- Yanwei Gu
- Department of Chemistry, National University of, Singapore, 3 Science Drive 3, 117543, Singapore.
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Wang T, Huang J, Lv H, Fan Q, Feng L, Tao Z, Ju H, Wu X, Tait SL, Zhu J. Kinetic Strategies for the Formation of Graphyne Nanowires via Sonogashira Coupling on Ag(111). J Am Chem Soc 2018; 140:13421-13428. [DOI: 10.1021/jacs.8b08477] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tao Wang
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Jianmin Huang
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Haifeng Lv
- Hefei National Laboratory of Physical Sciences at the Microscale, School of Chemistry and Materials Science, CAS Key Laboratory of Materials for Energy Conversion, and CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei 230026, P.R. China
- Synergetic Innovation of Quantum Information & Quantum Technology, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Qitang Fan
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Lin Feng
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Zhijie Tao
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Huanxin Ju
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Xiaojun Wu
- Hefei National Laboratory of Physical Sciences at the Microscale, School of Chemistry and Materials Science, CAS Key Laboratory of Materials for Energy Conversion, and CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei 230026, P.R. China
- Synergetic Innovation of Quantum Information & Quantum Technology, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Steven L. Tait
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, P.R. China
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Colazzo L, Mohammed MSG, Dorel R, Nita P, García Fernández C, Abufager P, Lorente N, Echavarren AM, de Oteyza DG. On-surface synthesis of heptacene on Ag(001) from brominated and non-brominated tetrahydroheptacene precursors. Chem Commun (Camb) 2018; 54:10260-10263. [PMID: 30152499 PMCID: PMC6136266 DOI: 10.1039/c8cc04402c] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Achieving the Ag(001)-supported synthesis of heptacene from two related reactants reveals the effect of the presence of Br atoms on the reaction process.
Achieving the Ag(001)-supported synthesis of heptacene from two related reactants reveals the effect of the presence of Br atoms on the reaction process. The properties of reactants, intermediates and end-products are further characterized by scanning tunneling microscopy and spectroscopy.
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Affiliation(s)
- Luciano Colazzo
- Donostia International Physics Center (DIPC), 20018 San Sebastián, Spain.
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37
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Krüger J, Eisenhut F, Skidin D, Lehmann T, Ryndyk DA, Cuniberti G, García F, Alonso JM, Guitián E, Pérez D, Peña D, Trinquier G, Malrieu JP, Moresco F, Joachim C. Electronic Resonances and Gap Stabilization of Higher Acenes on a Gold Surface. ACS NANO 2018; 12:8506-8511. [PMID: 30059612 DOI: 10.1021/acsnano.8b04046] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
On-surface synthesis provides a powerful method for the generation of long acene molecules, making possible the detailed investigation of the electronic properties of single higher acenes on a surface. By means of scanning tunneling microscopy and spectroscopy combined with theoretical considerations, we discuss the polyradical character of the ground state of higher acenes as a function of the number of linearly fused benzene rings. We present energy and spatial mapping of the tunneling resonances of hexacene, heptacene, and decacene, and discuss the role of molecular orbitals in the observed tunneling conductance maps. We show that the energy gap between the first electronic tunneling resonances below and above the Fermi energy stabilizes to a finite value, determined by a first diradical electronic perturbative contribution to the polyacene electronic ground state. Up to decacene, the main contributor to the ground state of acenes remains the lowest-energy closed-shell electronic configuration.
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Affiliation(s)
- Justus Krüger
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
- Center for Advancing Electronics Dresden , TU Dresden , 01062 Dresden , Germany
| | - Frank Eisenhut
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
- Center for Advancing Electronics Dresden , TU Dresden , 01062 Dresden , Germany
| | - Dmitry Skidin
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
- Center for Advancing Electronics Dresden , TU Dresden , 01062 Dresden , Germany
| | - Thomas Lehmann
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
| | - Dmitry A Ryndyk
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
- Bremen Center for Computational Materials Science (BCCMS) , Universität Bremen , 28359 Bremen , Germany
| | - Gianaurelio Cuniberti
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
- Center for Advancing Electronics Dresden , TU Dresden , 01062 Dresden , Germany
- Dresden Center for Computational Materials Science (DCMS) , TU Dresden , 01062 Dresden , Germany
| | - Fátima García
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 - Santiago de Compostela , Spain
| | - José M Alonso
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 - Santiago de Compostela , Spain
| | - Enrique Guitián
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 - Santiago de Compostela , Spain
| | - Dolores Pérez
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 - Santiago de Compostela , Spain
| | - Diego Peña
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 - Santiago de Compostela , Spain
| | - Georges Trinquier
- Laboratoire de Chimie et Physique Quantiques, IRSAMC-CNRS-UMR5626 , Université Paul-Sabatier (Toulouse III) , 31062 Toulouse Cedex 4, France
| | - Jean-Paul Malrieu
- Laboratoire de Chimie et Physique Quantiques, IRSAMC-CNRS-UMR5626 , Université Paul-Sabatier (Toulouse III) , 31062 Toulouse Cedex 4, France
| | - Francesca Moresco
- Institute for Materials Science and Max Bergmann Center of Biomaterials , TU Dresden , 01062 Dresden , Germany
- Center for Advancing Electronics Dresden , TU Dresden , 01062 Dresden , Germany
| | - Christian Joachim
- Centre d'élaboration de matériaux et d'études structurale (CEMES), UPR 8011 CNRS , Nanosciences Group & MANA Satellite , 29 Rue J. Marvig , P.O. Box 94347, 31055 Toulouse , France
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Goronzy DP, Ebrahimi M, Rosei F, Fang Y, De Feyter S, Tait SL, Wang C, Beton PH, Wee ATS, Weiss PS, Perepichka DF. Supramolecular Assemblies on Surfaces: Nanopatterning, Functionality, and Reactivity. ACS NANO 2018; 12:7445-7481. [PMID: 30010321 DOI: 10.1021/acsnano.8b03513] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Understanding how molecules interact to form large-scale hierarchical structures on surfaces holds promise for building designer nanoscale constructs with defined chemical and physical properties. Here, we describe early advances in this field and highlight upcoming opportunities and challenges. Both direct intermolecular interactions and those that are mediated by coordinated metal centers or substrates are discussed. These interactions can be additive, but they can also interfere with each other, leading to new assemblies in which electrical potentials vary at distances much larger than those of typical chemical interactions. Earlier spectroscopic and surface measurements have provided partial information on such interfacial effects. In the interim, scanning probe microscopies have assumed defining roles in the field of molecular organization on surfaces, delivering deeper understanding of interactions, structures, and local potentials. Self-assembly is a key strategy to form extended structures on surfaces, advancing nanolithography into the chemical dimension and providing simultaneous control at multiple scales. In parallel, the emergence of graphene and the resulting impetus to explore 2D materials have broadened the field, as surface-confined reactions of molecular building blocks provide access to such materials as 2D polymers and graphene nanoribbons. In this Review, we describe recent advances and point out promising directions that will lead to even greater and more robust capabilities to exploit designer surfaces.
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Affiliation(s)
- Dominic P Goronzy
- California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , United States
- Department of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States
| | - Maryam Ebrahimi
- INRS Centre for Energy, Materials and Telecommunications , 1650 Boul. Lionel Boulet , Varennes , Quebec J3X 1S2 , Canada
| | - Federico Rosei
- INRS Centre for Energy, Materials and Telecommunications , 1650 Boul. Lionel Boulet , Varennes , Quebec J3X 1S2 , Canada
- Institute for Fundamental and Frontier Science , University of Electronic Science and Technology of China , Chengdu 610054 , P.R. China
| | - Yuan Fang
- Department of Chemistry , McGill University , Montreal H3A 0B8 , Canada
| | - Steven De Feyter
- Department of Chemistry , KU Leuven , Celestijnenlaan 200F , Leuven 3001 , Belgium
| | - Steven L Tait
- Department of Chemistry , Indiana University , Bloomington , Indiana 47405 , United States
| | - Chen Wang
- National Center for Nanoscience and Technology , Beijing 100190 , China
| | - Peter H Beton
- School of Physics & Astronomy , University of Nottingham , Nottingham NG7 2RD , United Kingdom
| | - Andrew T S Wee
- Department of Physics , National University of Singapore , 117542 Singapore
| | - Paul S Weiss
- California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , United States
- Department of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States
- Department of Materials Science and Engineering , University of California, Los Angeles , Los Angeles , California 90095 , United States
| | - Dmitrii F Perepichka
- California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , United States
- Department of Chemistry , McGill University , Montreal H3A 0B8 , Canada
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Zuzak R, Dorel R, Kolmer M, Szymonski M, Godlewski S, Echavarren AM. Higher Acenes by On‐Surface Dehydrogenation: From Heptacene to Undecacene. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802040] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Rafal Zuzak
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAMFaculty of Physics, Astronomy, and Applied Computer ScienceJagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Ruth Dorel
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Marek Kolmer
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAMFaculty of Physics, Astronomy, and Applied Computer ScienceJagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Marek Szymonski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAMFaculty of Physics, Astronomy, and Applied Computer ScienceJagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Szymon Godlewski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAMFaculty of Physics, Astronomy, and Applied Computer ScienceJagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgil C/Marcel⋅lí Domingo s/n 43007 Tarragona Spain
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Shen B, Tatchen J, Sanchez‐Garcia E, Bettinger HF. Evolution of the Optical Gap in the Acene Series: Undecacene. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802197] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bin Shen
- Institut für Organische ChemieUniversität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Jörg Tatchen
- Computational BiochemistryUniversity of Duisburg-Essen 45141 Essen Germany
| | | | - Holger F. Bettinger
- Institut für Organische ChemieUniversität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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Zuzak R, Dorel R, Kolmer M, Szymonski M, Godlewski S, Echavarren AM. Higher Acenes by On-Surface Dehydrogenation: From Heptacene to Undecacene. Angew Chem Int Ed Engl 2018; 57:10500-10505. [PMID: 29791082 PMCID: PMC6099251 DOI: 10.1002/anie.201802040] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Indexed: 11/24/2022]
Abstract
A unified approach to the synthesis of the series of higher acenes up to previously unreported undecacene has been developed through the on-surface dehydrogenation of partially saturated precursors. These molecules could be converted into the parent acenes by both atomic manipulation with the tip of a scanning tunneling and atomic force microscope (STM/AFM) as well as by on-surface annealing. The structure of the generated acenes has been visualized by high-resolution non-contact AFM imaging and the evolution of the transport gap with the increase of the number of fused benzene rings has been determined on the basis of scanning tunneling spectroscopy (STS) measurements.
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Affiliation(s)
- Rafal Zuzak
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Ruth Dorel
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Marek Kolmer
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Marek Szymonski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Szymon Godlewski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
- Departament de Química Orgànica i Analítica, Universitat Rovira i Virgil, C/Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
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Shen B, Tatchen J, Sanchez‐Garcia E, Bettinger HF. Evolution of the Optical Gap in the Acene Series: Undecacene. Angew Chem Int Ed Engl 2018; 57:10506-10509. [DOI: 10.1002/anie.201802197] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Bin Shen
- Institut für Organische ChemieUniversität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Jörg Tatchen
- Computational BiochemistryUniversity of Duisburg-Essen 45141 Essen Germany
| | | | - Holger F. Bettinger
- Institut für Organische ChemieUniversität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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Eisenhut F, Krüger J, Skidin D, Nikipar S, Alonso JM, Guitián E, Pérez D, Ryndyk DA, Peña D, Moresco F, Cuniberti G. Hexacene generated on passivated silicon. NANOSCALE 2018; 10:12582-12587. [PMID: 29938293 DOI: 10.1039/c8nr03422b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
On-surface synthesis represents a successful strategy to obtain designed molecular structures on an ultra-clean metal substrate. While metal surfaces are known to favor adsorption, diffusion, and chemical bonding between molecular groups, on-surface synthesis on non-metallic substrates would allow the electrical decoupling of the resulting molecule from the surface, favoring application to electronics and spintronics. Here, we demonstrate the on-surface generation of hexacene by surface-assisted reduction on a H-passivated Si(001) surface. The reaction, observed by scanning tunneling microscopy and spectroscopy, is probably driven by the formation of Si-O complexes at dangling bond defects. Supported by density functional theory calculations, we investigate the interaction of hexacene with the passivated silicon surface, and with single silicon dangling bonds.
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Affiliation(s)
- Frank Eisenhut
- Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01069 Dresden, Germany
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