1
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Lowe B, Field B, Hellerstedt J, Ceddia J, Nourse HL, Powell BJ, Medhekar NV, Schiffrin A. Local gate control of Mott metal-insulator transition in a 2D metal-organic framework. Nat Commun 2024; 15:3559. [PMID: 38670958 PMCID: PMC11053079 DOI: 10.1038/s41467-024-47766-8] [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: 07/13/2023] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Electron-electron interactions in materials lead to exotic many-body quantum phenomena, including Mott metal-insulator transitions (MITs), magnetism, quantum spin liquids, and superconductivity. These phases depend on electronic band occupation and can be controlled via the chemical potential. Flat bands in two-dimensional (2D) and layered materials with a kagome lattice enhance electronic correlations. Although theoretically predicted, correlated-electron Mott insulating phases in monolayer 2D metal-organic frameworks (MOFs) with a kagome structure have not yet been realised experimentally. Here, we synthesise a 2D kagome MOF on a 2D insulator. Scanning tunnelling microscopy (STM) and spectroscopy reveal a MOF electronic energy gap of ∼200 meV, consistent with dynamical mean-field theory predictions of a Mott insulator. Combining template-induced (via work function variations of the substrate) and STM probe-induced gating, we locally tune the electron population of the MOF kagome bands and induce Mott MITs. These findings enable technologies based on electrostatic control of many-body quantum phases in 2D MOFs.
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Affiliation(s)
- Benjamin Lowe
- School of Physics and Astronomy, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, Australia
| | - Bernard Field
- School of Physics and Astronomy, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, Australia
| | - Jack Hellerstedt
- School of Physics and Astronomy, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, Australia
| | - Julian Ceddia
- School of Physics and Astronomy, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, Australia
| | - Henry L Nourse
- Quantum Information Science and Technology Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa, Japan
| | - Ben J Powell
- School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, Australia.
| | - Nikhil V Medhekar
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, VIC, Australia.
| | - Agustin Schiffrin
- School of Physics and Astronomy, Monash University, Clayton, VIC, Australia.
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, Australia.
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2
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Grossmann L, Hocke M, Galeotti G, Contini G, Floreano L, Cossaro A, Ghosh A, Schmittel M, Rosen J, Heckl WM, Björk J, Lackinger M. Mechanistic insights into on-surface reactions from isothermal temperature-programmed X-ray photoelectron spectroscopy. NANOSCALE 2024; 16:7612-7625. [PMID: 38512302 DOI: 10.1039/d4nr00468j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
On-surface synthesis often proceeds under kinetic control due to the irreversibility of key reaction steps, rendering kinetic studies pivotal. The accurate quantification of reaction rates also bears potential for unveiling reaction mechanisms. Temperature-Programmed X-ray Photoelectron Spectroscopy (TP-XPS) has emerged as an analytical tool for kinetic studies with splendid chemical and sufficient temporal resolution. Here, we demonstrate that the common linear temperature ramps lead to fitting ambiguities. Moreover, pinpointing the reaction order remains intricate, although this key parameter entails information on atomistic mechanisms. Yet, TP-XPS experiments with a stepped temperature profile comprised of isothermal segments facilitate the direct quantification of rate constants from fitting time courses. Thereby, rate constants are obtained for a series of temperatures, which allows independent extraction of both activation energies and pre-exponentials from Arrhenius plots. By using two analogous doubly versus triply brominated aromatic model compounds, we found that their debromination on Ag(111) is best modeled by second-order kinetics and thus proceeds via the involvement of a second, non-obvious reactant. Accordingly, we propose that debromination is activated by surface supplied Ag adatoms. This hypothesis is supported by Density Functional Theory (DFT) calculations. We foresee auspicious prospects for this TP-XPS variant for further exploring the kinetics and mechanisms of on-surface reactions.
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Affiliation(s)
- Lukas Grossmann
- Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany.
- Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany
| | - Manuela Hocke
- Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany.
| | | | - Giorgio Contini
- Istituto di Struttura della Materia-CNR (ISM-CNR), Via Fosso del Cavaliere 100, Roma, Italy
- Department of Physics, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Roma, Italy
| | - Luca Floreano
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, S.S. 14, km 163.5, Trieste, 34149, Italy
| | - Albano Cossaro
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, S.S. 14, km 163.5, Trieste, 34149, Italy
- Department of Chemical and Pharmaceutical Sciences, Università degli Studi di Trieste, via L. Giorgieri 1, 34100, Trieste, Italy
| | - Amit Ghosh
- Center of Micro and Nanochemistry and (Bio)Technology, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
| | - Michael Schmittel
- Center of Micro and Nanochemistry and (Bio)Technology, 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.
| | - Wolfgang M Heckl
- Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany.
- Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany
| | - Jonas Björk
- Linköping University, Department of Physics, Chemistry and Biology, IFM, 581 83 Linköping, Sweden.
| | - Markus Lackinger
- Physics Department, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany.
- Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany
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3
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Yan X, Su X, Chen J, Jin C, Chen L. Two-Dimensional Metal-Organic Frameworks Towards Spintronics. Angew Chem Int Ed Engl 2023; 62:e202305408. [PMID: 37258996 DOI: 10.1002/anie.202305408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/02/2023]
Abstract
The intrinsic properties of predesignable topologies and tunable electronic structures, coupled with the increase of electrical conductivity, make two-dimensional metal-organic frameworks (2D MOFs) highly prospective candidates for next-generation electronic/spintronic devices. In this Minireview, we present an outline of the design principles of 2D MOF-based spintronics materials. Then, we highlight the spin-transport properties of 2D MOF-based organic spin valves (OSVs) as a notable achievement in the progress of 2D MOFs for spintronics devices. After that, we discuss the potential for spin manipulation in 2D MOFs with bipolar magnetic semiconductor (BMS) properties as a promising field for future research. Finally, we provide a brief summary and outlook to encourage the development of novel 2D MOFs for spintronics applications.
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Affiliation(s)
- Xiaoli Yan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xi Su
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Jian Chen
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Chao Jin
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Processing Technology, Department of Applied Physics, School of Sciences, Tianjin University, Tianjin, 300350, China
| | - Long Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
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4
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Lowe B, Hellerstedt J, Matěj A, Mutombo P, Kumar D, Ondráček M, Jelinek P, Schiffrin A. Selective Activation of Aromatic C–H Bonds Catalyzed by Single Gold Atoms at Room Temperature. J Am Chem Soc 2022; 144:21389-21397. [DOI: 10.1021/jacs.2c10154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Benjamin Lowe
- School of Physics and Astronomy, Monash University, Clayton, Victoria3800, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, Victoria3800, Australia
| | - Jack Hellerstedt
- School of Physics and Astronomy, Monash University, Clayton, Victoria3800, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, Victoria3800, Australia
| | - Adam Matěj
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 00Prague, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, 779 00Olomouc, Czech Republic
- Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 771 46Olomouc, Czech Republic
| | - Pingo Mutombo
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 00Prague, Czech Republic
| | - Dhaneesh Kumar
- School of Physics and Astronomy, Monash University, Clayton, Victoria3800, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, Victoria3800, Australia
| | - Martin Ondráček
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 00Prague, Czech Republic
| | - Pavel Jelinek
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 00Prague, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, 779 00Olomouc, Czech Republic
| | - Agustin Schiffrin
- School of Physics and Astronomy, Monash University, Clayton, Victoria3800, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, Victoria3800, Australia
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5
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Yan L, Silveira OJ, Alldritt B, Kezilebieke S, Foster AS, Liljeroth P. Two-Dimensional Metal-Organic Framework on Superconducting NbSe 2. ACS NANO 2021; 15:17813-17819. [PMID: 34730941 PMCID: PMC8613900 DOI: 10.1021/acsnano.1c05986] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
The combination of two-dimensional (2D) materials into vertical heterostructures has emerged as a promising path to designer quantum materials with exotic properties. Here, we extend this concept from inorganic 2D materials to 2D metal-organic frameworks (MOFs) that offer additional flexibility in realizing designer heterostructures. We successfully fabricate a monolayer 2D Cu-dicyanoanthracene MOF on a 2D van der Waals NbSe2 superconducting substrate. The structural and electronic properties of two different phases of the 2D MOF are characterized by low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS), complemented by density-functional theory (DFT) calculations. These experiments allow us to follow the formation of the kagome band structure from Star of David-shaped building blocks. This work extends the synthesis and electronic tunability of 2D MOFs beyond the electronically less relevant metal and semiconducting surfaces to superconducting substrates, which are needed for the development of emerging quantum materials such as topological superconductors.
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Affiliation(s)
- Linghao Yan
- Department
of Applied Physics, Aalto University, 00076 Aalto, Finland
| | | | - Benjamin Alldritt
- Department
of Applied Physics, Aalto University, 00076 Aalto, Finland
| | | | - Adam S. Foster
- Department
of Applied Physics, Aalto University, 00076 Aalto, Finland
- Nano
Life Science Institute (WPI-NanoLSI), Kanazawa
University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Peter Liljeroth
- Department
of Applied Physics, Aalto University, 00076 Aalto, Finland
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6
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Zhang Z, Perepichka DF, Khaliullin RZ. Adatoms in the Surface-Confined Ullmann Coupling of Phenyl Groups. J Phys Chem Lett 2021; 12:11061-11069. [PMID: 34747624 DOI: 10.1021/acs.jpclett.1c02914] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Despite the importance of the on-surface Ullmann coupling for synthesis of atomically precise carbon nanostructures, it is still unclear whether this reaction is catalyzed by surface atoms or adatoms. Here, the feasibility of the adatom creation and adatom-catalyzed Ullmann coupling of chloro-, bromo-, and iodobenzene on Cu(111), Ag(111), and Au(111) surfaces is examined using density functional theory modeling. The extraction of a metal atom is found to be greatly facilitated by the formation of strong phenyl-metal bonds, making the extraction energy barrier comparable to, and in the case of Ag(111) even lower than, that for the competing surface-catalyzed phenyl-phenyl bond formation. However, if the phenyl-adatom bonds are too strong, as on Cu(111) and Ag(111), they create an insurmountable barrier for the subsequent adatom-catalyzed C-C coupling. In contrast, Au adatoms do not bind phenyl groups strongly and can catalyze the C-C bond formation almost as efficiently as surface atoms.
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Affiliation(s)
- Zhenzhe Zhang
- Department of Chemistry, McGill University, 801 Sherbrooke St West, Montreal, QC H3A 0B8, Canada
| | - Dmitrii F Perepichka
- Department of Chemistry, McGill University, 801 Sherbrooke St West, Montreal, QC H3A 0B8, Canada
| | - Rustam Z Khaliullin
- Department of Chemistry, McGill University, 801 Sherbrooke St West, Montreal, QC H3A 0B8, Canada
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7
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Arzola-Rubio A, Arzola-Álvarez C, Camarillo-Cisneros J, Anderson RC, Ruiz-Barrera O, Hinojos-Gallardo LC, Cabral-Lares RM. Novel Self-assembly Coordination Lipid Polymers that Fold into Toroids with DNA-Delivery Potential. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02044-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Hernández-López L, Piquero-Zulaica I, Downing CA, Piantek M, Fujii J, Serrate D, Ortega JE, Bartolomé F, Lobo-Checa J. Searching for kagome multi-bands and edge states in a predicted organic topological insulator. NANOSCALE 2021; 13:5216-5223. [PMID: 33661272 DOI: 10.1039/d0nr08558h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, mixed honeycomb-kagome lattices featuring metal-organic networks have been theoretically proposed as topological insulator materials capable of hosting nontrivial edge states. This new family of so-called "organic topological insulators" are purely two-dimensional and combine polyaromatic-flat molecules with metal adatoms. However, their experimental validation is still pending given the generalized absence of edge states. Here, we generate one such proposed network on a Cu(111) substrate and study its morphology and electronic structure with the purpose of confirming its topological properties. The structural techniques reveal a practically flawless network that results in a kagome network multi-band observed by angle-resolved photoemission spectroscopy and scanning tunneling spectroscopy. However, at the network island borders we notice the absence of edge states. Bond-resolved imaging of the network exhibits an unexpected structural symmetry alteration that explains such disappearance. This collective lifting of the network symmetry could be more general than initially expected and provide a simple explanation for the recurrent experimental absence of edge states in predicted organic topological insulators.
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Affiliation(s)
- Leyre Hernández-López
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Ignacio Piquero-Zulaica
- Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain and Physics Department E20, Technical University of Munich, 85748 Garching, Germany
| | - Charles A Downing
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain and Department of Physics and Astronomy, University of Exeter, Exeter EX4 4QL, UK
| | - Marten Piantek
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain and Laboratorio de Microscopías Avanzadas, Universidad de Zaragoza, E-50018, Zaragoza, Spain
| | - Jun Fujii
- Istituto Officina dei Materiali (IOM)-CNR Laboratorio TASC, 34149 Trieste, Italy
| | - David Serrate
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - J Enrique Ortega
- Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain and Departamento Física Aplicada I, Universidad del País Vasco, 20018-San Sebastian, Spain and Donostia International Physics Center, Paseo Manuel de Lardizabal 4, E-20018 San Sebastian, Spain
| | - Fernando Bartolomé
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Jorge Lobo-Checa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
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9
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Zhou DD, Wang J, Chen P, He Y, Wu JX, Gao S, Zhong Z, Du Y, Zhong D, Zhang JP. On-surface isostructural transformation from a hydrogen-bonded network to a coordination network for tuning the pore size and guest recognition. Chem Sci 2020; 12:1272-1277. [PMID: 34163889 PMCID: PMC8179111 DOI: 10.1039/d0sc05147k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/13/2020] [Indexed: 11/21/2022] Open
Abstract
Rational manipulation of supramolecular structures on surfaces is of great importance and challenging. We show that imidazole-based hydrogen-bonded networks on a metal surface can transform into an isostructural coordination network for facile tuning of the pore size and guest recognition behaviours. Deposition of triangular-shaped benzotrisimidazole (H3btim) molecules on Au(111)/Ag(111) surfaces gives honeycomb networks linked by double N-H⋯N hydrogen bonds. While the H3btim hydrogen-bonded networks on Au(111) evaporate above 453 K, those on Ag(111) transform into isostructural [Ag3(btim)] coordination networks based on double N-Ag-N bonds at 423 K, by virtue of the unconventional metal-acid replacement reaction (Ag reduces H+). The transformation expands the pore diameter of the honeycomb networks from 3.8 Å to 6.9 Å, giving remarkably different host-guest recognition behaviours for fullerene and ferrocene molecules based on the size compatibility mechanism.
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Affiliation(s)
- Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China
| | - Jun Wang
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Pin Chen
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Sen University Guangzhou 510006 China
| | - Yangyong He
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China
| | - Sen Gao
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Sen University Guangzhou 510006 China
| | - Zhihao Zhong
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Yunfei Du
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Sen University Guangzhou 510006 China
| | - Dingyong Zhong
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China
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10
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Kumar D, Krull C, Yin Y, Medhekar NV, Schiffrin A. Electric Field Control of Molecular Charge State in a Single-Component 2D Organic Nanoarray. ACS NANO 2019; 13:11882-11890. [PMID: 31584795 DOI: 10.1021/acsnano.9b05950] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Quantum dots (QD) with electric-field-controlled charge state are promising for electronics applications, e.g., digital information storage, single-electron transistors, and quantum computing. Inorganic QDs consisting of semiconductor nanostructures or heterostructures often offer limited control on size and composition distribution as well as low potential for scalability and/or nanoscale miniaturization. Owing to their tunability and self-assembly capability, using organic molecules as building nanounits can allow for bottom-up synthesis of two-dimensional (2D) nanoarrays of QDs. However, 2D molecular self-assembly protocols are often applicable on metals surfaces, where electronic hybridization and Fermi level pinning can hinder electric-field control of the QD charge state. Here, we demonstrate the synthesis of a single-component self-assembled 2D array of molecules [9,10-dicyanoanthracene (DCA)] that exhibit electric-field-controlled spatially periodic charging on a noble metal surface, Ag(111). The charge state of DCA can be altered (between neutral and negative), depending on its adsorption site, by the local electric field induced by a scanning tunneling microscope tip. Limited metal-molecule interactions result in an effective tunneling barrier between DCA and Ag(111) that enables electric-field-induced electron population of the lowest unoccupied molecular orbital (LUMO) and, hence, charging of the molecule. Subtle site-dependent variation of the molecular adsorption height translates into a significant spatial modulation of the molecular polarizability, dielectric constant, and LUMO energy level alignment, giving rise to a spatially dependent effective molecule-surface tunneling barrier and likelihood of charging. This work offers potential for high-density 2D self-assembled nanoarrays of identical QDs whose charge states can be addressed individually with an electric field.
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Affiliation(s)
- Dhaneesh Kumar
- School of Physics & Astronomy , Monash University , Clayton , Victoria 3800 , Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies , Monash University , Clayton , Victoria 3800 , Australia
| | - Cornelius Krull
- School of Physics & Astronomy , Monash University , Clayton , Victoria 3800 , Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies , Monash University , Clayton , Victoria 3800 , Australia
| | - Yuefeng Yin
- School of Physics & Astronomy , Monash University , Clayton , Victoria 3800 , Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies , Monash University , Clayton , Victoria 3800 , Australia
- Department of Materials Science and Engineering , Monash University , Clayton , Victoria 3800 , Australia
| | - Nikhil V Medhekar
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies , Monash University , Clayton , Victoria 3800 , Australia
- Department of Materials Science and Engineering , Monash University , Clayton , Victoria 3800 , Australia
| | - Agustin Schiffrin
- School of Physics & Astronomy , Monash University , Clayton , Victoria 3800 , Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies , Monash University , Clayton , Victoria 3800 , Australia
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11
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Yan L, Pohjavirta I, Alldritt B, Liljeroth P. On-Surface Assembly of Au-Dicyanoanthracene Coordination Structures on Au(111). Chemphyschem 2019; 20:2297-2300. [PMID: 31050870 DOI: 10.1002/cphc.201900255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Indexed: 11/08/2022]
Abstract
On-surface metal-organic coordination provides a promising way for synthesizing different two-dimensional lattice structures that have been predicted to possess exotic electronic properties. Using scanning tunneling microscopy (STM) and spectroscopy (STS), we studied the supramolecular self-assembly of 9,10-dicyanoanthracene (DCA) molecules on the Au(111) surface. Close-packed islands of DCA molecules and Au-DCA metal-organic coordination structures coexist on the Au(111) surface. Ordered DCA3 Au2 metal-organic networks have a structure combining a honeycomb lattice of Au atoms with a kagome lattice of DCA molecules. Low-temperature STS experiments demonstrate the presence of a delocalized electronic state containing contributions from both the gold atom states and the lowest unoccupied molecular orbital of the DCA molecules. These findings are important for the future search of topological phases in metal-organic networks combining honeycomb and kagome lattices with strong spin-orbit coupling in heavy metal atoms.
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Affiliation(s)
- Linghao Yan
- Department of Applied Physics, Aalto University School of Science, PO Box 15100, 00076, Aalto, Finland
| | - Ilona Pohjavirta
- Department of Applied Physics, Aalto University School of Science, PO Box 15100, 00076, Aalto, Finland
| | - Benjamin Alldritt
- Department of Applied Physics, Aalto University School of Science, PO Box 15100, 00076, Aalto, Finland
| | - Peter Liljeroth
- Department of Applied Physics, Aalto University School of Science, PO Box 15100, 00076, Aalto, Finland
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12
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Hurtado Salinas D, Sarasola A, Stel B, Cometto FP, Kern K, Arnau A, Lingenfelder M. Reactivity of Bioinspired Magnesium-Organic Networks under CO 2 and O 2 Exposure. ACS OMEGA 2019; 4:9850-9859. [PMID: 31460076 PMCID: PMC6649272 DOI: 10.1021/acsomega.9b00762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/22/2019] [Indexed: 05/27/2023]
Abstract
Photosynthesis is the model system for energy conversion. It uses CO2 as a starting reactant to convert solar energy into chemical energy, i.e., organic molecules or biomass. The first and rate-determining step of this cycle is the immobilization and activation of CO2, catalyzed by RuBisCO enzyme, the most abundant protein on earth. Here, we propose a strategy to develop novel biomimetic two-dimensional (2D) nanostructures for CO2 adsorption at room temperature by reductionist mimicking of the Mg-carboxylate RuBisCO active site. We present a method to synthesize a 2D surface-supported system based on Mg2+ centers stabilized by a carboxylate environment and track their structural dynamics and reactivity under either CO2 or O2 exposure at room temperature. The CO2 molecules adsorb temporarily on the Mg2+ centers, producing a charge imbalance that catalyzes a phase transition into a different configuration, whereas O2 adsorbs on the Mg2+ center, giving rise to a distortion in the metal-organic bonds that eventually leads to the collapse of the structure. The combination of bioinspired synthesis and surface reactivity studies demonstrated here for Mg-based 2D ionic networks holds promise for the development of new catalysts that can work at room temperature.
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Affiliation(s)
- Daniel
E. Hurtado Salinas
- Max
Planck-EPFL Laboratory for Molecular Nanoscience, EPFL SB CMNT NL-CMNT, CH 1015 Lausanne, Switzerland
- Institut
de Physique, École Polytechnique
Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Ane Sarasola
- Departamento
de Física Aplicada I, UPV/EHU, Plaza Europa 1, E-20018 San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 San Sebastián, Spain
| | - Bart Stel
- Max
Planck-EPFL Laboratory for Molecular Nanoscience, EPFL SB CMNT NL-CMNT, CH 1015 Lausanne, Switzerland
- Institut
de Physique, École Polytechnique
Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Fernando P. Cometto
- Max
Planck-EPFL Laboratory for Molecular Nanoscience, EPFL SB CMNT NL-CMNT, CH 1015 Lausanne, Switzerland
- Institut
de Physique, École Polytechnique
Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Departamento
de Fisicoquímica, Instituto de Investigaciones en Fisicoquímica
de Córdoba, INFIQC-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina
| | - Klaus Kern
- Institut
de Physique, École Polytechnique
Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Max-Planck-Institut
für Festkörperforschung, D-70569 Stuttgart, Germany
| | - Andrés Arnau
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 San Sebastián, Spain
- Departamento
de Física de Materiales, UPV/EHU, Paseo Manuel de Lardizabal 3, E-20018 San Sebastián, Spain
- Centro
de Física de Materiales (CFM) CSIC-UPV/EHU, Materials Physics
Center MPC, Paseo Manuel
de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Magalí Lingenfelder
- Max
Planck-EPFL Laboratory for Molecular Nanoscience, EPFL SB CMNT NL-CMNT, CH 1015 Lausanne, Switzerland
- Institut
de Physique, École Polytechnique
Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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13
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Gao Z, Hsu CH, Liu J, Chuang FC, Zhang R, Xia B, Xu H, Huang L, Jin Q, Liu PN, Lin N. Synthesis and characterization of a single-layer conjugated metal-organic structure featuring a non-trivial topological gap. NANOSCALE 2019; 11:878-881. [PMID: 30604812 DOI: 10.1039/c8nr08477g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We employ an on-surface assembly protocol to synthesize a single layer of a two-dimensional conjugated network (Ni3(HITP)2) on a Au(111) surface. The electronic coupling between the π orbital of the diimine ligand and the d orbital of the metal ion renders efficient π-conjugation. Density-functional theory calculations provide evidence of a non-trivial topological gap in the surface-adsorbed single layer. This work demonstrates that single-layer 2D metal-organic frameworks adsorbed on surfaces are a new class of 2D materials that host quantum phases.
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Affiliation(s)
- Zi'Ang Gao
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
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14
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15
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Queck F, Krejčí O, Scheuerer P, Bolland F, Otyepka M, Jelínek P, Repp J. Bonding Motifs in Metal–Organic Compounds on Surfaces. J Am Chem Soc 2018; 140:12884-12889. [DOI: 10.1021/jacs.8b06765] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabian Queck
- Department of Physics, University of Regensburg, 93053 Regensburg, Germany
| | - Ondrej Krejčí
- Institute of Physics of the Czech Academy of Science, CZ-16253 Praha, Czech Republic
- COMP Center of Excellence, Department of Applied Physics, Aalto University School of Science, 00076 Aalto, Finland
| | - Philipp Scheuerer
- Department of Physics, University of Regensburg, 93053 Regensburg, Germany
| | - Felix Bolland
- Department of Physics, University of Regensburg, 93053 Regensburg, Germany
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 771 46 Olomouc, Czech Republic
| | - Pavel Jelínek
- Institute of Physics of the Czech Academy of Science, CZ-16253 Praha, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 771 46 Olomouc, Czech Republic
| | - Jascha Repp
- Department of Physics, University of Regensburg, 93053 Regensburg, Germany
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16
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Kumar A, Banerjee K, Foster AS, Liljeroth P. Two-Dimensional Band Structure in Honeycomb Metal-Organic Frameworks. NANO LETTERS 2018; 18:5596-5602. [PMID: 30134111 PMCID: PMC6179349 DOI: 10.1021/acs.nanolett.8b02062] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/08/2018] [Indexed: 05/31/2023]
Abstract
Two-dimensional (2D) metal-organic frameworks (MOFs) have been recently proposed as a flexible material platform for realizing exotic quantum phases including topological and anomalous quantum Hall insulators. Experimentally, direct synthesis of 2D MOFs has been essentially confined to metal substrates, where the strong interaction with the substrate masks the intrinsic electronic properties of the MOF. In addition to electronic decoupling from the underlying metal support, synthesis on weakly interacting substrates (e.g., graphene) would enable direct realization of heterostructures of 2D MOFs with inorganic 2D materials. Here, we demonstrate synthesis of 2D honeycomb MOFs on epitaxial graphene substrate. Using low-temperature scanning tunneling microscopy (STM) and atomic force microscopy (AFM) complemented by density-functional theory (DFT) calculations, we show the formation of a 2D band structure in the MOF decoupled from the substrate. These results open the experimental path toward MOF-based designer electronic materials with complex, engineered electronic structures.
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Affiliation(s)
- Avijit Kumar
- Department
of Applied Physics, Aalto University School
of Science, PO Box 15100, 00076 Aalto, Finland
| | - Kaustuv Banerjee
- Department
of Applied Physics, Aalto University School
of Science, PO Box 15100, 00076 Aalto, Finland
| | - Adam S. Foster
- Department
of Applied Physics, Aalto University School
of Science, P.O. Box 11100, 00076 Aalto, Finland
- WPI
Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Graduate
School Materials Science in Mainz, Staudinger Weg 9, 55128 Mainz, Germany
| | - Peter Liljeroth
- Department
of Applied Physics, Aalto University School
of Science, PO Box 15100, 00076 Aalto, Finland
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17
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Schwarz M, Garnica M, Fasano F, Demitri N, Bonifazi D, Auwärter W. BN-Patterning of Metallic Substrates through Metal Coordination of Decoupled Borazines. Chemistry 2018; 24:9565-9571. [DOI: 10.1002/chem.201800849] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/13/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Martin Schwarz
- Physics Department; Technical University of Munich; 85748 Garching Germany
| | - Manuela Garnica
- Physics Department; Technical University of Munich; 85748 Garching Germany
| | - Francesco Fasano
- School of Chemistry; Cardiff University; Park Place Main Building Cardiff CF10 3AT United Kingdom
| | - Nicola Demitri
- Elettra-Sincrotrone Trieste; S.S. 14 Km 163.5 in Area Science Park 34149 Basovizza, Trieste Italy
| | - Davide Bonifazi
- School of Chemistry; Cardiff University; Park Place Main Building Cardiff CF10 3AT United Kingdom
| | - Willi Auwärter
- Physics Department; Technical University of Munich; 85748 Garching Germany
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18
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Cao L, Wang T, Wang C. Synthetic Strategies for Constructing Two-Dimensional Metal-Organic Layers (MOLs): A Tutorial Review. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800144] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lingyun Cao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University; Xiamen Fujian 361005 China
| | - Tingting Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University; Xiamen Fujian 361005 China
| | - Cheng Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University; Xiamen Fujian 361005 China
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19
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Fan Q, Liu L, Dai J, Wang T, Ju H, Zhao J, Kuttner J, Hilt G, Gottfried JM, Zhu J. Surface Adatom Mediated Structural Transformation in Bromoarene Monolayers: Precursor Phases in Surface Ullmann Reaction. ACS NANO 2018; 12:2267-2274. [PMID: 29455518 DOI: 10.1021/acsnano.7b06787] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Structural transformations of supramolecular systems triggered by external stimuli maintain great potential for application in the fabrication of molecular storage devices. Using combined ultrahigh vacuum scanning tunneling microscopy, X-ray photoemission spectroscopy, and density functional theory calculations, we observed the surface adatom mediated structural transformation from 4,4''-dibromo- m-terphenyl (DMTP)-based halogen-bonded networks to DMTP-Cu(Ag) coordination networks on Cu(111) and Ag(111) at low temperatures. The halogen-bonded networks, which were formed on Cu(111) at 97 K and on Ag(111) at 93 K, consist of intact DMTP molecules stabilized by triple Br···Br bonds. The DMTP-Cu(Ag) coordination networks form on Cu(111) at 113 K and on Ag(111) at 103 K. They contain alternatingly arranged intact DMTP molecules and Cu(Ag) adatoms stabilized by weak C-Br···Cu(Ag) coordination bonds. Annealing the DMTP-Ag structure to 333 K leads to the initiation of C-Br bond scission. This observation suggests that the DMTP-Ag coordination network represents the intermediate phase ready for dehalogenation, which is the first step of the surface Ullmann reaction.
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Affiliation(s)
- Qitang Fan
- National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology , University of Science and Technology of China , Hefei , Anhui 230029 , P. R. China
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Strasse , 35032 Marburg , Germany
| | - Liming Liu
- Department of Physics , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Jingya Dai
- National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology , University of Science and Technology of China , Hefei , Anhui 230029 , P. R. China
| | - Tao Wang
- National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology , University of Science and Technology of China , Hefei , Anhui 230029 , P. R. China
| | - Huanxin Ju
- National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology , University of Science and Technology of China , Hefei , Anhui 230029 , P. R. China
| | - Jin Zhao
- Department of Physics , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Julian Kuttner
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Strasse , 35032 Marburg , Germany
| | - Gerhard Hilt
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Strasse , 35032 Marburg , Germany
| | - J Michael Gottfried
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Strasse , 35032 Marburg , Germany
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology , University of Science and Technology of China , Hefei , Anhui 230029 , P. R. China
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20
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Nijs T, Klein YM, Mousavi SF, Ahsan A, Nowakowska S, Constable EC, Housecroft CE, Jung TA. The Different Faces of 4′-Pyrimidinyl-Functionalized 4,2′:6′,4′′-Terpyridines: Metal–Organic Assemblies from Solution and on Au(111) and Cu(111) Surface Platforms. J Am Chem Soc 2018; 140:2933-2939. [DOI: 10.1021/jacs.7b12624] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Thomas Nijs
- Department
of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Y. Maximilian Klein
- Department
of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a 4058 Basel, Switzerland
| | - S. Fatemeh Mousavi
- Department
of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Aisha Ahsan
- Department
of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Sylwia Nowakowska
- Department
of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Edwin C. Constable
- Department
of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a 4058 Basel, Switzerland
| | - Catherine E. Housecroft
- Department
of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a 4058 Basel, Switzerland
| | - Thomas A. Jung
- Department
of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
- Laboratory
for Micro- and Nanotechnology, Paul Scherrer Institut, 5232 Villigen, Switzerland
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21
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Liu J, Fu X, Chen Q, Zhang Y, Wang Y, Zhao D, Chen W, Xu GQ, Liao P, Wu K. Stabilizing surface Ag adatoms into tunable single atom arrays by terminal alkyne assembly. Chem Commun (Camb) 2018; 52:12944-12947. [PMID: 27747352 DOI: 10.1039/c6cc06444b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ordered two-dimensional arrays of silver adatoms with tunable metal atom density stabilized by 1,4-diethynyl-2,5-dimethylbenzene, a terminal alkyne, were prepared on Ag(111) and scrutinized by scanning tunneling microscopy and density functional theory calculations. Stabilization of the adatom arrays was attributed to the substrate-mediated electron localizations of the Ag adatom and terminal alkynyl in the molecule.
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Affiliation(s)
- Jing Liu
- BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. and College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning, China
| | - Xiangyu Fu
- MOE Key Lab of Polymer Chemistry & Physics, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Qiwei Chen
- BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yajie Zhang
- BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yongfeng Wang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China
| | - Dahui Zhao
- MOE Key Lab of Polymer Chemistry & Physics, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wei Chen
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore and SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
| | - Guo Qin Xu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore and SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
| | - Peilin Liao
- Department of Chemical & Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
| | - Kai Wu
- BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. and SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
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22
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Silveira OJ, Lima ÉN, Chacham H. Bilayers of Ni 3C 12S 12 and Pt 3C 12S 12: graphene-like 2D topological insulators tunable by electric fields. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:465502. [PMID: 29053472 DOI: 10.1088/1361-648x/aa8ec1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the present work we predict, through first-principles calculations, that bilayers of the recently synthesized Ni3 [Formula: see text] [Formula: see text] and Pt3 [Formula: see text] [Formula: see text] layered materials are topological insulators upon electron doping, and that their topological insulator properties can be modulated by the application of electric fields with magnitudes achievable in devices. The electronic structures of both bilayers are characterized by spin-orbit split graphene-like bands, with gap magnitudes that are three orders of magnitude larger than graphene's. In ribbon geometries, chiral edge modes develop at each side with band dispersions similar to that of Kane-Mele graphene model. Surprisingly, the edge states' spin-propagation locking occurs even for very thin ribbons. We also find that the response of the electronic structure of both materials to applied electric fields are similar to both graphene and the Kane-Mele model with a Rashba term. All these findings indicate that these bilayer systems can be considered as large-spin-orbit graphene analogues with a strong sensitivity to applied electric fields.
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Affiliation(s)
- Orlando J Silveira
- Departamento de Física, ICEx, Universidade Federal de Minas Gerais, C. P. 702, 30123-970, Belo Horizonte, MG, Brazil
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23
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Zhang X, Li N, Wang H, Yuan C, Gu G, Zhang Y, Nieckarz D, Szabelski P, Hou S, Teo BK, Wang Y. Influence of Relativistic Effects on Assembled Structures of V-Shaped Bispyridine Molecules on M(111) Surfaces Where M = Cu, Ag, Au. ACS NANO 2017; 11:8511-8518. [PMID: 28726372 DOI: 10.1021/acsnano.7b04559] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The self-assembly behavior of a V-shaped bispyridine, 1,3-bi(4-pyridyl)benzene (BPyB), was studied by scanning tunneling microscopy on the (111) surfaces of Cu, Ag, and Au. BPyB molecules coordinately bonded with active Cu adatoms on Cu(111) in the form of complete polygonal rings at low coverages. On Ag(111), BPyB molecules aggregated into two-dimensional islands by relatively weak intermolecular hydrogen bonds. The coexistence of hydrogen bonds and coordination interaction was observed on the BPyB-covered Au(111) substrate. Density functional theory calculations of the metal-molecule binding energy and Monte Carlo simulations were performed to help understand the forming mechanism of molecular superstructures on the surfaces. In particular, the comprehensive orbital composition analysis interprets the observed metal-organic complexes and reveals the importance of relativistic effects for the extraordinary activity of gold adatoms. The relativistic effects cause the energy stability of the Au 6s atomic orbital and decrease the energy separation between the Au 6s and 5d orbitals. The enhanced sd hybridization strengthens the N-Au-N bond in BPyB-Au-BPyB complexes.
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Affiliation(s)
- Xue Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Na Li
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Hao Wang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Chenyang Yuan
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Gaochen Gu
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Yajie Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Damian Nieckarz
- Supramolecular Chemistry Laboratory, University of Warsaw , Biological and Chemical Research Centre, Zwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Paweł Szabelski
- Department of Theoretical Chemistry, Maria-Curie Skłodowska University , Pl. M.C. Skłodowskiej 3, 20-031 Lublin, Poland
| | - Shimin Hou
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
- Peking University Information Technology Institute Tianjin Binhai , Tianjin 300450, China
| | - Boon K Teo
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
| | - Yongfeng Wang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University , Beijing 100871, China
- Peking University Information Technology Institute Tianjin Binhai , Tianjin 300450, China
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24
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Rapakousiou A, Sakamoto R, Shiotsuki R, Matsuoka R, Nakajima U, Pal T, Shimada R, Hossain A, Masunaga H, Horike S, Kitagawa Y, Sasaki S, Kato K, Ozawa T, Astruc D, Nishihara H. Liquid/Liquid Interfacial Synthesis of a Click Nanosheet. Chemistry 2017; 23:8443-8449. [PMID: 28419580 DOI: 10.1002/chem.201700201] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 04/13/2017] [Indexed: 01/04/2023]
Abstract
A liquid/liquid interfacial synthesis is employed, for the first time, to synthesize a covalent two-dimensional polymer nanosheet. Copper-catalyzed azide-alkyne cycloaddition (CuAAC) between a three-way terminal alkyne and azide at a water/dichloromethane interface generates a 1,2,3-triazole-linked nanosheet. The resultant nanosheet, with a flat and smooth texture, has a maximum domain size of 20 μm and minimum thickness of 5.3 nm. The starting monomers in the organic phase and the copper catalyst in the aqueous phase can only meet at the liquid/liquid interface as a two-dimensional reaction space; this allows them to form the two-dimensional polymer. The robust triazole linkage generated by irreversible covalent-bond formation allows the nanosheet to resist hydrolysis under both acidic and alkaline conditions, and to endure pyrolysis up to more than 300 °C. The coordination ability of the triazolyl group enables the nanosheet to act as a reservoir for metal ions, with an affinity order of Pd2+ >Au3+ >Cu2+ .
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Affiliation(s)
- Amalia Rapakousiou
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,IMDEA Nanociencia Ciudad Universitaria de Cantoblanco, C/Faraday 9, 28049, Madrid, Spain
| | - Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,JST-PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Ryo Shiotsuki
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ryota Matsuoka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ukyo Nakajima
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Tigmansu Pal
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Rintaro Shimada
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Amran Hossain
- Venture Laboratory, Kyoto Institute of Technology, Matsugasaki Hashigami cho 1, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Satoshi Horike
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yasutaka Kitagawa
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Sono Sasaki
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki Hashikami-cho 1, Sakyo-ku, Kyoto, 606-8585, Japan.,RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan
| | - Kenichi Kato
- RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan
| | - Takeaki Ozawa
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Didier Astruc
- ISM, UMR CNRS No. 5255, University of Bordeaux, 33405, Talence Cedex, France
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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25
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Wang ZF, Jin K, Liu F. Computational design of two‐dimensional topological materials. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2017. [DOI: 10.1002/wcms.1304] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Z. F. Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, CAS Key Laboratory of Strongly‐Coupled Quantum Matter Physics University of Science and Technology of China Hefei China
| | - Kyung‐Hwan Jin
- Department of Materials Science and Engineering University of Utah Salt Lake City UT USA
| | - Feng Liu
- Department of Materials Science and Engineering University of Utah Salt Lake City UT USA
- Collaborative Innovation Center of Quantum Matter Beijing China
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26
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Silveira OJ, Chacham H. Electronic and spin-orbit properties of the kagome MOF family M 3(1,2,5,6,9, 10-triphenylenehexathiol) 2 (M = Ni, Pt, Cu and Au). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:09LT01. [PMID: 28114122 DOI: 10.1088/1361-648x/aa530e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We investigate, through first-principles calculations, the electronic band structure-including the spin-orbit coupling-of single-layer M3(THT)2 metal-organic frameworks, where M = Ni, Pt, Cu and Au, and THT is the 1,2,5,6,9,10-triphenylenehexathiol molecule. This MOF family contains, in its electronic structure, spin-orbit gaps that could allow their use in quantum spin Hall effect devices. We find that the partial inclusion of exact exchange in the calculations (beyond a semi-local exchange-correlation level) leads to quantitative, and even qualitative, modifications of the electronic structure of Ni3(THT)2 and Pt3(THT)2 relative to calculations at semi-local exchange-correlation level: upon inclusion of exact exchange, the predicted fundamental band gap of these semiconductor materials increases to more than twice, and the predicted spin-orbit gaps change by as much as 44%. Even the qualitative description of the valence bands of these materials changes upon inclusion of exact exchange. We also find that the magnitudes of the spin-orbit gaps are not monotonic with the atomic number of the metal atom.
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Affiliation(s)
- Orlando J Silveira
- Departamento de Física, ICEx, Universidade Federal de Minas Gerais, C. P. 702, 30123-970, Belo Horizonte, MG, Brazil
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27
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Sakamoto R, Yagi T, Hoshiko K, Kusaka S, Matsuoka R, Maeda H, Liu Z, Liu Q, Wong W, Nishihara H. Photofunctionality in Porphyrin‐Hybridized Bis(dipyrrinato)zinc(II) Complex Micro‐ and Nanosheets. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611785] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ryota Sakamoto
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- JST-PRESTO 4-1-8, Honcho, Kawaguchi Saitama 332-0012 Japan
| | - Toshiki Yagi
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ken Hoshiko
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shinpei Kusaka
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Matsuoka
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Hiroaki Maeda
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Zheng Liu
- Inorganic Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Nagoya 463-8560 Japan
- Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8565 Japan
| | - Qian Liu
- Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University Waterloo Road Hong Kong P.R. China
- HKBU Institute of Research and Continuing Education Shenzhen Virtual University Park Shenzhen 518057 P.R. China
- College of Biological and Chemical Engineering Anhui Polytechnic University Wuhu, Anhui 241000 P.R. China
| | - Wai‐Yeung Wong
- Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University Waterloo Road Hong Kong P.R. China
- HKBU Institute of Research and Continuing Education Shenzhen Virtual University Park Shenzhen 518057 P.R. China
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hung Hom Hong Kong P.R. China
| | - Hiroshi Nishihara
- Department of Chemistry Graduate School of Science The University of Tokyo 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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28
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Sakamoto R, Yagi T, Hoshiko K, Kusaka S, Matsuoka R, Maeda H, Liu Z, Liu Q, Wong WY, Nishihara H. Photofunctionality in Porphyrin-Hybridized Bis(dipyrrinato)zinc(II) Complex Micro- and Nanosheets. Angew Chem Int Ed Engl 2017; 56:3526-3530. [PMID: 28240405 DOI: 10.1002/anie.201611785] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Indexed: 11/06/2022]
Abstract
New bis(dipyrrinato)zinc(II) complex micro- and nanosheets containing zinc(II) porphyrin (N2) are synthesized. A liquid/liquid interface method between dipyrrin porphyrin ligand L2 and zinc acetate produces N2 with a large domain size. N2 can be layered quantitatively onto a flat substrate by a modified Langmuir-Schäfer method. N2 deposited on a SnO2 electrode functions as a photoanode for a photoelectric conversion system. The photoresponse of N2 covers the whole visible wavelength range (400-650 nm), with a maximum quantum efficiency of more than twice that of a bis(dipyrrinato)zinc(II) complex nanosheet without porphyrin.
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Affiliation(s)
- Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,JST-PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Toshiki Yagi
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ken Hoshiko
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shinpei Kusaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ryota Matsuoka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hiroaki Maeda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Zheng Liu
- Inorganic Functional Materials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Nagoya, 463-8560, Japan.,Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan
| | - Qian Liu
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Hong Kong, P.R. China.,HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, 518057, P.R. China.,College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui, 241000, P.R. China
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Hong Kong, P.R. China.,HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, 518057, P.R. China.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P.R. China
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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29
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Bouju X, Mattioli C, Franc G, Pujol A, Gourdon A. Bicomponent Supramolecular Architectures at the Vacuum–Solid Interface. Chem Rev 2017; 117:1407-1444. [DOI: 10.1021/acs.chemrev.6b00389] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xavier Bouju
- CEMES-CNRS, 29 Rue J. Marvig, 31055 Toulouse, France
| | | | - Grégory Franc
- CEMES-CNRS, 29 Rue J. Marvig, 31055 Toulouse, France
| | - Adeline Pujol
- Université de Toulouse, UPS, CNRS, CEMES, 118 route de Narbonne, 31062 Toulouse, France
| | - André Gourdon
- CEMES-CNRS, 29 Rue J. Marvig, 31055 Toulouse, France
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30
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Huang H, Xu Y, Wang J, Duan W. Emerging topological states in quasi-two-dimensional materials. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1296] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huaqing Huang
- Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics; Tsinghua University; Beijing China
- Collaborative Innovation Center of Quantum Matter; Tsinghua University; Beijing China
| | - Yong Xu
- Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics; Tsinghua University; Beijing China
- Collaborative Innovation Center of Quantum Matter; Tsinghua University; Beijing China
- RIKEN Center for Emergent Matter Science (CEMS); Wako Japan
| | - Jianfeng Wang
- Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics; Tsinghua University; Beijing China
- Collaborative Innovation Center of Quantum Matter; Tsinghua University; Beijing China
| | - Wenhui Duan
- Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics; Tsinghua University; Beijing China
- Collaborative Innovation Center of Quantum Matter; Tsinghua University; Beijing China
- Institute for Advanced Study; Tsinghua University; Beijing China
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31
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Li J, Wäckerlin C, Schnidrig S, Joliat E, Alberto R, Ernst KH. On-Surface Metalation and 2D Self-Assembly of Pyrphyrin Molecules Into Metal-Coordinated Networks on Cu(111). Helv Chim Acta 2016. [DOI: 10.1002/hlca.201600278] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jingyi Li
- Empa, Swiss Federal Laboratories for Materials Science and Technology; Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Christian Wäckerlin
- Empa, Swiss Federal Laboratories for Materials Science and Technology; Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Stephan Schnidrig
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Evelyne Joliat
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Roger Alberto
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Karl-Heinz Ernst
- Empa, Swiss Federal Laboratories for Materials Science and Technology; Überlandstrasse 129 8600 Dübendorf Switzerland
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
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32
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Sakamoto R, Takada K, Sun X, Pal T, Tsukamoto T, Phua EJH, Rapakousiou A, Hoshiko K, Nishihara H. The coordination nanosheet (CONASH). Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.12.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Kocić N, Liu X, Chen S, Decurtins S, Krejčí O, Jelínek P, Repp J, Liu SX. Control of Reactivity and Regioselectivity for On-Surface Dehydrogenative Aryl–Aryl Bond Formation. J Am Chem Soc 2016; 138:5585-93. [DOI: 10.1021/jacs.5b13461] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nemanja Kocić
- Institute
of Experimental and Applied Physics, University of Regensburg, 93053 Regensburg, Germany
| | - Xunshan Liu
- Department
of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
| | - Songjie Chen
- Department
of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
| | - Silvio Decurtins
- Department
of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
| | - Ondřej Krejčí
- Institute of Physics of Czech Academy of Sciences, 16200 Prague, Czech Republic
- Charles University in Prague, Faculty of Mathematics
and Physics, Department of Surface and Plasma Science, 18000 Prague, Czech Republic
| | - Pavel Jelínek
- Institute of Physics of Czech Academy of Sciences, 16200 Prague, Czech Republic
| | - Jascha Repp
- Institute
of Experimental and Applied Physics, University of Regensburg, 93053 Regensburg, Germany
| | - Shi-Xia Liu
- Department
of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
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34
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Nowakowski J, Nowakowska S, Srivastava G, Baljozovic M, Girovsky J, Ballav N, Jung TA. Probing the Reactivity of Functionalized Surfaces by Porphyrin Metalation. ChemistrySelect 2016. [DOI: 10.1002/slct.201600215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jan Nowakowski
- Laboratory for Micro- and Nanotechnology; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
| | - Sylwia Nowakowska
- Department of Physics; University of Basel; Klingelbergstrasse 82 4056 Basel Switzerland
| | - Gitika Srivastava
- Laboratory for Micro- and Nanotechnology; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
| | - Milos Baljozovic
- Laboratory for Micro- and Nanotechnology; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
| | - Jan Girovsky
- Laboratory for Micro- and Nanotechnology; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
| | - Nirmalya Ballav
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pashan Pune - 411 008 India
| | - Thomas A. Jung
- Laboratory for Micro- and Nanotechnology; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
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35
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Weber PB, Hellwig R, Paintner T, Lattelais M, Paszkiewicz M, Casado Aguilar P, Deimel PS, Guo Y, Zhang YQ, Allegretti F, Papageorgiou AC, Reichert J, Klyatskaya S, Ruben M, Barth JV, Bocquet ML, Klappenberger F. Surface-Guided Formation of an Organocobalt Complex. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peter B. Weber
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Raphael Hellwig
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Tobias Paintner
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Marie Lattelais
- Ecole Normale Supérieure; PSL Research University; Département de Chimie; CNRS UMR; 8640 PASTEUR 75005 Paris France
| | - Mateusz Paszkiewicz
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Pablo Casado Aguilar
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Peter S. Deimel
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Yuanyuan Guo
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Yi-Qi Zhang
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Francesco Allegretti
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | | | - Joachim Reichert
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Svetlana Klyatskaya
- Karlsruher Institut für Technologie; Kaiserstraße 12 76131 Karlsruhe Germany
| | - Mario Ruben
- Karlsruher Institut für Technologie; Kaiserstraße 12 76131 Karlsruhe Germany
- IPCMS-CNRS; Université de Strasbourg; 23 rue de Loess 67034 Strasbourg France
| | - Johannes V. Barth
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
| | - Marie-Laure Bocquet
- Ecole Normale Supérieure; PSL Research University; Département de Chimie; CNRS UMR; 8640 PASTEUR 75005 Paris France
| | - Florian Klappenberger
- Physik Department E20; Technische Universität München; James-Franck-Str. 85748 Garching Germany
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36
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Weber PB, Hellwig R, Paintner T, Lattelais M, Paszkiewicz M, Casado Aguilar P, Deimel PS, Guo Y, Zhang YQ, Allegretti F, Papageorgiou AC, Reichert J, Klyatskaya S, Ruben M, Barth JV, Bocquet ML, Klappenberger F. Surface-Guided Formation of an Organocobalt Complex. Angew Chem Int Ed Engl 2016; 55:5754-9. [PMID: 27059261 DOI: 10.1002/anie.201600567] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 11/11/2022]
Abstract
Organocobalt complexes represent a versatile tool in organic synthesis as they are important intermediates in Pauson-Khand, Friedel-Crafts, and Nicholas reactions. Herein, a single-molecule-level investigation addressing the formation of an organocobalt complex at a solid-vacuum interface is reported. Deposition of 4,4'-(ethyne-1,2-diyl)dibenzonitrile and Co atoms on the Ag(111) surface followed by annealing resulted in genuine complexes in which single Co atoms laterally coordinated to two carbonitrile groups undergo organometallic bonding with the internal alkyne moiety of adjacent molecules. Alternative complexation scenarios involving fragmentation of the precursor were ruled out by complementary X-ray photoelectron spectroscopy. According to density functional theory analysis, the complexation with the alkyne moiety follows the Dewar-Chatt-Duncanson model for a two-electron-donor ligand where an alkyne-to-Co donation occurs together with a strong metal-to-alkyne back-donation.
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Affiliation(s)
- Peter B Weber
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Raphael Hellwig
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Tobias Paintner
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Marie Lattelais
- Ecole Normale Supérieure, PSL Research University, Département de Chimie, CNRS UMR, 8640 PASTEUR, 75005, Paris, France
| | - Mateusz Paszkiewicz
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Pablo Casado Aguilar
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Peter S Deimel
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Yuanyuan Guo
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Yi-Qi Zhang
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Francesco Allegretti
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Anthoula C Papageorgiou
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Joachim Reichert
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Svetlana Klyatskaya
- Karlsruher Institut für Technologie, Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Mario Ruben
- Karlsruher Institut für Technologie, Kaiserstraße 12, 76131, Karlsruhe, Germany.,IPCMS-CNRS, Université de Strasbourg, 23 rue de Loess, 67034, Strasbourg, France
| | - Johannes V Barth
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany
| | - Marie-Laure Bocquet
- Ecole Normale Supérieure, PSL Research University, Département de Chimie, CNRS UMR, 8640 PASTEUR, 75005, Paris, France.
| | - Florian Klappenberger
- Physik Department E20, Technische Universität München, James-Franck-Str., 85748, Garching, Germany.
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37
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Zhang LZ, Wang ZF, Huang B, Cui B, Wang Z, Du SX, Gao HJ, Liu F. Intrinsic Two-Dimensional Organic Topological Insulators in Metal-Dicyanoanthracene Lattices. NANO LETTERS 2016; 16:2072-2075. [PMID: 26866565 DOI: 10.1021/acs.nanolett.6b00110] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We predict theoretical existence of intrinsic two-dimensional organic topological insulator (OTI) states in Cu-dicyanoanthracene (DCA) lattice, a system that has also been grown experimentally on Cu substrate, based on first-principle density functional theory calculations. The pz-orbital Kagome bands having a Dirac point lying exactly at the Fermi level are found in the freestanding Cu-DCA lattice. The tight-binding model analysis, the calculated Chern numbers, and the semi-infinite Dirac edge states within the spin-orbit coupling gaps all confirm its intrinsic topological properties. The intrinsic TI states are found to originate from a proper number of electrons filling of the hybridized bands from Cu atomic and DCA molecular orbitals based on which similar lattices containing noble metal atoms (Au and Cu) and those molecules with two CN groups (DCA and cyanogens) are all predicted to be intrinsic OTIs.
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Affiliation(s)
- L Z Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, China
- Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
| | - Z F Wang
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - B Huang
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
| | - B Cui
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China , Chengdu 610054, China
| | - S X Du
- Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - H-J Gao
- Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - Feng Liu
- Department of Materials Science and Engineering, University of Utah , Salt Lake City, Utah 84112, United States
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
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38
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Svane KL, Linderoth TR, Hammer B. Structure and role of metal clusters in a metal-organic coordination network determined by density functional theory. J Chem Phys 2016; 144:084708. [PMID: 26931719 DOI: 10.1063/1.4942665] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a comprehensive theoretical investigation of the structures formed by self-assembly of tetrahydroxybenzene (THB)-derivatives on Cu(111). The THB molecule is known to dehydrogenate completely during annealing, forming a reactive radical which assembles into a close-packed structure or a porous metal-coordinated network depending on the coverage of the system. Here, we present details on how the structures are determined by density functional theory calculations, using scanning tunneling microscopy-derived information on the periodicity. The porous network is based on adatom trimers. By analysing the charge distribution of the structure, it is found that this unusual coordination motif is preferred because it simultaneously provides a good coordination of all oxygen atoms and allows for the formation of a two-dimensional network on the surface.
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Affiliation(s)
- K L Svane
- Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark
| | - T R Linderoth
- Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark
| | - B Hammer
- Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark
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39
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Stradi D, Borca B, Barja S, Garnica M, Díaz C, Rodríguez-García JM, Alcamí M, Vázquez de Parga AL, Miranda R, Martín F. Understanding the self-assembly of TCNQ on Cu(111): a combined study based on scanning tunnelling microscopy experiments and density functional theory simulations. RSC Adv 2016. [DOI: 10.1039/c5ra26320d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two polymorphic structures of TCNQ on Cu(111) can be formed by varying the deposition conditions.
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Affiliation(s)
- Daniele Stradi
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
- Madrid
- Spain
- Dep. Química Módulo 13
- Universidad Autónoma de Madrid
| | - Bogdana Borca
- Dep. Física de la Materia Condensada
- Universidad Autónoma de Madrid
- Madrid
- Spain
| | - Sara Barja
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
- Madrid
- Spain
- Dep. Física de la Materia Condensada
- Universidad Autónoma de Madrid
| | - Manuela Garnica
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
- Madrid
- Spain
- Dep. Física de la Materia Condensada
- Universidad Autónoma de Madrid
| | - Cristina Díaz
- Dep. Química Módulo 13
- Universidad Autónoma de Madrid
- Madrid
- Spain
| | | | - Manuel Alcamí
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
- Madrid
- Spain
- Dep. Química Módulo 13
- Universidad Autónoma de Madrid
| | | | - Rodolfo Miranda
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
- Madrid
- Spain
- Dep. Física de la Materia Condensada
- Universidad Autónoma de Madrid
| | - Fernando Martín
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
- Madrid
- Spain
- Dep. Química Módulo 13
- Universidad Autónoma de Madrid
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40
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Wang L, Chen Q, Shi H, Liu H, Ren X, Wang B, Wu K, Shao X. Metal adatoms generated by the co-play of melamine assembly and subsequent CO adsorption. Phys Chem Chem Phys 2016; 18:2324-9. [DOI: 10.1039/c5cp05976c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO exposure induces the formation of monoatomic gold species trapped in the melamine monolayer assembled on the Au(111) surface.
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Affiliation(s)
- Li Wang
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
- China
| | - Qiwei Chen
- BNLMS, College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
| | - Hong Shi
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
- China
| | - Huihui Liu
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
- China
| | - Xinguo Ren
- Key Laboratory of Quantum Information
- University of Science and Technology of China
- Hefei 230026
- China
- Synergistic Innovation Center of Quantum Information and Quantum Physics
| | - Bing Wang
- HFNL
- University of Science and Technology of China
- Hefei 230026
- China
| | - Kai Wu
- BNLMS, College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
- Singapore Peking University Research Centre (SPURc)
| | - Xiang Shao
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
- China
- Synergistic Innovation Center of Quantum Information and Quantum Physics
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41
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Meyer J, Nickel A, Ohmann R, Lokamani, Toher C, Ryndyk DA, Garmshausen Y, Hecht S, Moresco F, Cuniberti G. Tuning the formation of discrete coordination nanostructures. Chem Commun (Camb) 2015; 51:12621-4. [PMID: 26158490 DOI: 10.1039/c5cc02723c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Novel surface coordination nanostructures based on cyanosexiphenyl molecules are assembled on a gold surface and investigated by scanning tunneling microscopy and density functional theory. Their formation can be tuned by varying the surface temperature during deposition. Diffusing gold adatoms act as coordination centers for the cyano groups present on one end of the nonsymmetrical molecules.
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Affiliation(s)
- Joerg Meyer
- Institute for Materials Science, Max Bergmann Center of Biomaterials, and Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany.
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42
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Feng Z, Velari S, Cossaro A, Castellarin-Cudia C, Verdini A, Vesselli E, Dri C, Peressi M, De Vita A, Comelli G. Trapping of Charged Gold Adatoms by Dimethyl Sulfoxide on a Gold Surface. ACS NANO 2015; 9:8697-709. [PMID: 26079254 DOI: 10.1021/acsnano.5b02284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report the formation of dimethyl sulfoxide (DMSO) molecular complexes on Au(111) enabled by native gold adatoms unusually linking the molecules via a bonding of ionic nature, yielding a mutual stabilization between molecules and adatom(s). DMSO is a widely used polar, aprotic solvent whose interaction with metal surfaces is not fully understood. By combining X-ray photoelectron spectroscopy, low temperature scanning tunneling microscopy, and density functional theory (DFT) calculations, we show that DMSO molecules form complexes made by up to four molecules arranged with adjacent oxygen terminations. DFT calculations reveal that most of the observed structures are accurately reproduced if, and only if, the negatively charged oxygen terminations are linked by one or two positively charged Au adatoms. A similar behavior was previously observed only in nonstoichiometric organic salt layers, fabricated using linkage alkali atoms and strongly electronegative molecules. These findings suggest a motif for anchoring organic adlayers of polar molecules on metal substrates and also provide nanoscale insight into the interaction of DMSO with gold.
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Affiliation(s)
- Zhijing Feng
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Simone Velari
- Engineering and Architecture Department, University of Trieste , Via A. Valerio 6/1, 34147 Trieste, Italy
| | - Albano Cossaro
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Carla Castellarin-Cudia
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Alberto Verdini
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Erik Vesselli
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Carlo Dri
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Maria Peressi
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- CNR-IOM DEMOCRITOS , Area Science Park, S.S. 14 km 163.5, 34149 Trieste, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Unità di ricerca di Trieste , Piazzale Europa 1, 34128 Trieste, Italy
| | - Alessandro De Vita
- Engineering and Architecture Department, University of Trieste , Via A. Valerio 6/1, 34147 Trieste, Italy
- Department of Physics, King's College London , Strand, London WC2R 2LS, United Kingdom
| | - Giovanni Comelli
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
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43
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Knor M, Gao HY, Amirjalayer S, Studer A, Gao H, Du S, Fuchs H. Stereoselective formation of coordination polymers with 1,4-diaminonaphthalene on various Cu substrates. Chem Commun (Camb) 2015; 51:10854-7. [PMID: 26050616 DOI: 10.1039/c5cc03130c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Polymerization of 1,4-diaminonaphthalene on various Cu substrates resulting in stereoselectively well-defined metal-organic coordination polymers is reported. By using different crystallographic planes (111), (110) and (100) of a Cu substrate the structure of the resulting coordination polymer was controlled.
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Affiliation(s)
- Marek Knor
- Center for Nanotechnology, Heisenbergstraße 11, 48149 Münster, Germany.
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44
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Sun Q, Cai L, Ma H, Yuan C, Xu W. On-surface construction of a metal-organic Sierpiński triangle. Chem Commun (Camb) 2015; 51:14164-6. [PMID: 26247871 DOI: 10.1039/c5cc05554g] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through a careful design of the molecular precursor we have successfully constructed the metal-organic Sierpiński triangles on Au(111) via on-surface coordination chemistry, which is demonstrated by the interplay of high-resolution STM imaging and DFT calculations. The coordination Sierpiński triangles show high stabilities as evidenced by room temperature STM imaging, and could withstand a thermal treatment up to 450 K.
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Affiliation(s)
- Qiang Sun
- Tongji-Aarhus Joint Research Center for Nanostructures and Functional Nanomaterials, College of Materials Science and Engineering, Tongji University, Caoan Road 4800, Shanghai 201804, P. R. China.
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45
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Pivetta M, Pacchioni GE, Fernandes E, Brune H. Temperature-dependent self-assembly of NC–Ph5–CN molecules on Cu(111). J Chem Phys 2015; 142:101928. [DOI: 10.1063/1.4909518] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Marina Pivetta
- Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Giulia E. Pacchioni
- Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Edgar Fernandes
- Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Harald Brune
- Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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46
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Pham TA, Song F, Alberti MN, Nguyen MT, Trapp N, Thilgen C, Diederich F, Stöhr M. Heat-induced formation of one-dimensional coordination polymers on Au(111): an STM study. Chem Commun (Camb) 2015; 51:14473-6. [DOI: 10.1039/c5cc04940g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Upon annealing, H-bonded nanoribbons are transformed into 1D coordination polymers on Au(111) governed by an unusual threefold coordination bonding motif.
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Affiliation(s)
- Tuan Anh Pham
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Fei Song
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Mariza N. Alberti
- Laboratorium für Organische Chemie
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Manh-Thuong Nguyen
- The Abdus Salam International Centre for Theoretical Physics
- Trieste
- Italy
| | - Nils Trapp
- Laboratorium für Organische Chemie
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Carlo Thilgen
- Laboratorium für Organische Chemie
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | | | - Meike Stöhr
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
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47
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Yang Z, Corso M, Robles R, Lotze C, Fitzner R, Mena-Osteritz E, Bäuerle P, Franke KJ, Pascual JI. Orbital redistribution in molecular nanostructures mediated by metal-organic bonds. ACS NANO 2014; 8:10715-10722. [PMID: 25244124 DOI: 10.1021/nn504431e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Dicyanovinyl-quinquethiophene (DCV5T-Me2) is a prototype conjugated oligomer for highly efficient organic solar cells. This class of oligothiophenes are built up by an electron-rich donor (D) backbone and terminal electron-deficient acceptor (A) moieties. Here, we investigated its structural and electronic properties when it is adsorbed on a Au(111) surface using low temperature scanning tunneling microscopy/spectroscopy (STM/STS) and atomic force microscopy (AFM). We find that DCV5T-Me2 self-assembles in extended chains, stabilized by intercalated Au atoms. The effect of metal-ligand hybridization with Au adatoms causes an energetic downshift of the DCV5T-Me2 lowest unoccupied molecular orbital (LUMO) with respect to the uncoordinated molecules on the surface. The asymmetric coordination of a gold atom to only one molecular end group leads to an asymmetric localization of the LUMO and LUMO+1 states at opposite sides. Using model density functional theory (DFT) calculations, we explain such orbital reshaping as a consequence of linear combinations of the original LUMO and LUMO+1 orbitals, mixed by the attachment of a bridging Au adatom. Our study shows that the alignment of molecular orbitals and their distribution within individual molecules can be modified by contacting them to metal atoms in specific sites.
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Affiliation(s)
- Zechao Yang
- Institut für Experimentalphysik, Freie Universität Berlin , Arnimallee 14, 14195 Berlin, Germany
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48
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Bebensee F, Svane K, Bombis C, Masini F, Klyatskaya S, Besenbacher F, Ruben M, Hammer B, Linderoth TR. Ein Metall-organisches Netzwerk auf Basis von Cu-Adatom- Trimeren. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406528] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Bebensee F, Svane K, Bombis C, Masini F, Klyatskaya S, Besenbacher F, Ruben M, Hammer B, Linderoth TR. A Surface Coordination Network Based on Copper Adatom Trimers. Angew Chem Int Ed Engl 2014; 53:12955-9. [DOI: 10.1002/anie.201406528] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Indexed: 11/06/2022]
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50
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Zhang J, Shchyrba A, Nowakowska S, Meyer E, Jung TA, Muntwiler M. Probing the spatial and momentum distribution of confined surface states in a metal coordination network. Chem Commun (Camb) 2014; 50:12289-92. [DOI: 10.1039/c4cc03941f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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