1
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Ordering a rhenium catalyst on Ag(001) through molecule-surface step interaction. Commun Chem 2022; 5:3. [PMID: 36697683 PMCID: PMC9814538 DOI: 10.1038/s42004-021-00617-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 12/03/2021] [Indexed: 01/28/2023] Open
Abstract
Atomic scale studies of the anchoring of catalytically active complexes to surfaces may provide valuable insights for the design of new catalytically active hybrid systems. In this work, the self-assembly of 1D, 2D and 3D structures of the complex fac-Re(bpy)(CO)3Cl (bpy = 2,2'-bipyridine), a CO2 reduction catalyst, on the Ag(001) surface are studied by a combination of low-temperature scanning tunneling microscopy and density functional theory calculations. Infrared and sum frequency generation spectroscopy confirm that the complex remains chemically intact under sublimation. Deposition of the complexes onto the silver surface at 300 K leads to strong local variations in the resulting surface coverage on the nanometer scale, indicating that in the initial phase of deposition a large fraction of the molecules is desorbing from the surface. Low coverage regions show a decoration of step edges aligned along the crystal's symmetry axes <110>. These crystallographic directions are found to be of major importance to the binding of the complexes to the surface. Moreover, the interaction between the molecules and the substrate promotes the restructuring of surface steps along these directions. Well-aligned and decorated steps are found to act as nucleation point for monolayer growth (2D) before 3D growth starts.
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2
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Wang Z, Tao M, Yang D, Li Z, Shi M, Sun K, Yang J, Wang J. Strain-Relief Patterns and Kagome Lattice in Self-Assembled C 60 Thin Films Grown on Cd(0001). Int J Mol Sci 2021; 22:ijms22136880. [PMID: 34206862 PMCID: PMC8268109 DOI: 10.3390/ijms22136880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/18/2021] [Accepted: 06/20/2021] [Indexed: 12/15/2022] Open
Abstract
We report an ultra-high vacuum low-temperature scanning tunneling microscopy (STM) study of the C60 monolayer grown on Cd(0001). Individual C60 molecules adsorbed on Cd(0001) may exhibit a bright or dim contrast in STM images. When deposited at low temperatures close to 100 K, C60 thin films present a curved structure to release strain due to dominant molecule–substrate interactions. Moreover, edge dislocation appears when two different wavy structures encounter each other, which has seldomly been observed in molecular self-assembly. When growth temperature rose, we found two forms of symmetric kagome lattice superstructures, 2 × 2 and 4 × 4, at room temperature (RT) and 310 K, respectively. The results provide new insight into the growth behavior of C60 films.
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3
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Ebeling D, Šekutor M, Stiefermann M, Tschakert J, Dahl JEP, Carlson RMK, Schirmeisen A, Schreiner PR. London Dispersion Directs On-Surface Self-Assembly of [121]Tetramantane Molecules. ACS NANO 2017; 11:9459-9466. [PMID: 28846392 DOI: 10.1021/acsnano.7b05204] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
London dispersion (LD) acts between all atoms and molecules in nature, but the role of LD interactions in the self-assembly of molecular layers is still poorly understood. In this study, direct visualization of single molecules using atomic force microscopy with CO-functionalized tips revealed the exact adsorption structures of bulky and highly polarizable [121]tetramantane molecules on Au(111) and Cu(111) surfaces. We determined the absolute molecular orientations of the completely sp3-hybridized tetramantanes on metal surfaces. Moreover, we demonstrate how LD drives this on-surface self-assembly of [121]tetramantane hydrocarbons, resulting in the formation of a highly ordered 2D lattice. Our experimental findings were underpinned by a systematic computational study, which allowed us to quantify the energies associated with LD interactions and to analyze intermolecular close contacts and attractions in detail.
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Affiliation(s)
- Daniel Ebeling
- Institute of Applied Physics, Justus-Liebig University , Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Marina Šekutor
- Institute of Organic Chemistry, Justus-Liebig University , Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Marvin Stiefermann
- Institute of Applied Physics, Justus-Liebig University , Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Jalmar Tschakert
- Institute of Applied Physics, Justus-Liebig University , Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Jeremy E P Dahl
- Stanford Institute for Materials and Energy Sciences , Stanford, California 94305, United States
| | - Robert M K Carlson
- Stanford Institute for Materials and Energy Sciences , Stanford, California 94305, United States
| | - André Schirmeisen
- Institute of Applied Physics, Justus-Liebig University , Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus-Liebig University , Heinrich-Buff-Ring 17, 35392 Giessen, Germany
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4
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Monazami E, McClimon JB, Rondinelli J, Reinke P. Electronic Structure and Band Gap of Fullerenes on Tungsten Surfaces: Transition from a Semiconductor to a Metal Triggered by Annealing. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34854-34862. [PMID: 27998144 DOI: 10.1021/acsami.6b10813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The understanding and control of molecule-metal interfaces is critical to the performance of molecular electronics and photovoltaics devices. We present a study of the interface between C60 and W, which is a carbide-forming transition metal. The complex solid-state reaction at the interface can be exploited to adjust the electronic properties of the molecule layer. Scanning tunneling microscopy/spectroscopy measurements demonstrate the progression of this reaction from wide band gap (>2.5 eV) to metallic molecular surface during annealing from 300 to 800 K. Differential conduction maps with 104 scanning tunneling spectra are used to quantify the transition in the density of states and the reduction of the band gap during annealing with nanometer spatial resolution. The electronic transition is spatially homogeneous, and the surface band gap can therefore be adjusted by a targeted annealing step. The modified molecules, which we call nanospheres, are quite resistant to ripening and coalescence, unlike any other metallic nanoparticle of the same size. Densely packed C60 and isolated C60 molecules show the same transition in electronic structure, which confirms that the transformation is controlled by the reaction at the C60-W interface. Density functional theory calculations are used to develop possible reaction pathways in agreement with experimentally observed electronic structure modulation. Control of the band gap by the choice of annealing temperature is a unique route to tailoring molecular-layer electronic properties.
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Affiliation(s)
- Ehsan Monazami
- Department of Materials Science and Engineering, University of Virginia , Charlottesville, Virginia 22901, United States
| | - John B McClimon
- Department of Materials Science and Engineering, University of Virginia , Charlottesville, Virginia 22901, United States
- Department of Materials Science and Engineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - James Rondinelli
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
| | - Petra Reinke
- Department of Materials Science and Engineering, University of Virginia , Charlottesville, Virginia 22901, United States
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5
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Ozmaian M, Fathizadeh A, Jalalvand M, Ejtehadi MR, Allaei SMV. Diffusion and self-assembly of C60 molecules on monolayer graphyne sheets. Sci Rep 2016; 6:21910. [PMID: 26912386 PMCID: PMC4766508 DOI: 10.1038/srep21910] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 01/27/2016] [Indexed: 12/15/2022] Open
Abstract
The motion of a fullerene (C60) on 5 different types of graphyne is studied by all-atom molecular dynamics simulations and compared with former studies on the motion of C60 on graphene. The motion shows a diffusive behavior which consists of either a continuous motion or discrete movements between trapping sites depending on the type of the graphyne sheet. For graphyne-4 and graphyne-5, fullerenes could detach from the surface of the graphyne sheet at room temperature which was not reported for similar cases on graphene sheets. Collective motion of a group of fullerenes interacting with a graphyne studied and it is shown that fullerenes exhibit stable assemblies. Depending on the type of graphyne, these assemblies can have either single or double layers. The mobility of the assembled structures is also dependent on the type of the graphyne sheet. The observed properties of the motion suggests novel applications for the complexes of fullerene and monolayer graphynes.
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Affiliation(s)
- Masoumeh Ozmaian
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Arman Fathizadeh
- School of physics, Institute for research in fundamental sciences (IPM), Tehran, Iran
| | | | - Mohammad Reza Ejtehadi
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Iran.,Center of Excellence in Complex Systems and Condensed Matter (CSCM), Sharif University of Technology, Tehran 1458889694, Iran
| | - S Mehdi Vaez Allaei
- Department of physics, University of Tehran, Tehran 14395-547, Iran.,School of physics, Institute for research in fundamental sciences (IPM), Tehran, Iran
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6
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Balch AL, Winkler K. Two-Component Polymeric Materials of Fullerenes and the Transition Metal Complexes: A Bridge between Metal–Organic Frameworks and Conducting Polymers. Chem Rev 2016; 116:3812-82. [DOI: 10.1021/acs.chemrev.5b00553] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Alan L. Balch
- Department
of Chemistry, University of California, Davis, California 95616, United States
| | - Krzysztof Winkler
- Institute
of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
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7
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Bozhko SI, Krasnikov SA, Lübben O, Murphy BE, Radican K, Semenov VN, Wu HC, Levchenko EA, Chaika AN, Sergeeva NN, Shvets IV. Correlation between charge-transfer and rotation of C60 on WO2/W(110). NANOSCALE 2013; 5:3380-3386. [PMID: 23467592 DOI: 10.1039/c3nr34087b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Understanding molecular switching between different charge states is crucial to further progress in molecule-based nano-electronic devices. Herein we have employed scanning tunnelling microscopy to visualize different charge states of a single C60 molecule within a molecular layer grown on the WO2/W(110) surface. The results obtained demonstrate that individual C60 molecules within the layer switch between neutral and negatively charged states in the temperature range of 220-260 K over the time scale of the experiment. The charging of the C60 causes changes in the local density of electron states and consequently a variation in tunnelling current. Using density functional theory calculations, it was found that the charged state corresponds to the negatively charged C60(-), which has accepted an electron. The switching of the molecule into the charged state is triggered continuously by tunnelling electrons when the STM tip is static above an individual C60 molecule with a bias applied. Molecular movement accompanies the molecule's switching between these states.
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Affiliation(s)
- Sergey I Bozhko
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), School of Physics, Trinity College Dublin, Dublin 2, Ireland
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8
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Sanchez-Sanchez C, Lanzilotto V, Gonzalez C, Verdini A, de Andres PL, Floreano L, Lopez MF, Martin-Gago JA. Weakly Interacting Molecular Layer of Spinning C60Molecules on TiO2(110) Surfaces. Chemistry 2012; 18:7382-7. [DOI: 10.1002/chem.201200627] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Indexed: 11/11/2022]
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9
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Di Marino M, Sedona F, Sambi M, Carofiglio T, Lubian E, Casarin M, Tondello E. STM investigation of temperature-dependent two-dimensional supramolecular architectures of C60 and amino-tetraphenylporphyrin on Ag(110). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:2466-2472. [PMID: 19810724 DOI: 10.1021/la9026927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Multicomponent supramolecular self-assemblies of exceptional long-range order and low defectivity are obtained if C(60) and 5-(4-aminophenyl)-10,15,20-triphenylporphyrin (TPP-NH2) are assembled on Ag(110) by sequential evaporation in the submonolayer range of TPP-NH2 and fullerene on the substrate surface and subsequent annealing. A (+/-2 -3, 6 +/- 3) array consisting of supramolecular stripes of a 1:1 C(60)/TPP-NH2 2D adduct develops at 410 K (the low temperature, LT, phase). If the LT phase is annealed at 470 K, then a 3:1 fullerene/TPP-NH2 (+/-3 -5, 5 +/- 5) nanoporous array (the HT phase) forms, with each pore containing a single porphyrin molecule. Phase separation occurs by annealing the HT phase at 520 K. Structural models are proposed and discussed on the basis of the experimental scanning tunneling microscopy results.
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Affiliation(s)
- M Di Marino
- Dipartimento di Scienze Chimiche, Università di Padova and Consorzio INSTM, Via Marzolo 1, 35131 Padova, Italy
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10
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Sánchez L, Otero R, Gallego JM, Miranda R, Martín N. Ordering Fullerenes at the Nanometer Scale on Solid Surfaces. Chem Rev 2009; 109:2081-91. [DOI: 10.1021/cr800441b] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luis Sánchez
- Departamento de Química Orgánica, Facultad de C.C. Químicas, Universidad Complutense de Madrid, 28040 Madrid, Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Instituto Madrileño de Estudios Avanzados en Nanociencia, IMDEA-Nanociencia, 28049 Madrid, and Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Roberto Otero
- Departamento de Química Orgánica, Facultad de C.C. Químicas, Universidad Complutense de Madrid, 28040 Madrid, Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Instituto Madrileño de Estudios Avanzados en Nanociencia, IMDEA-Nanociencia, 28049 Madrid, and Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - José María Gallego
- Departamento de Química Orgánica, Facultad de C.C. Químicas, Universidad Complutense de Madrid, 28040 Madrid, Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Instituto Madrileño de Estudios Avanzados en Nanociencia, IMDEA-Nanociencia, 28049 Madrid, and Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Rodolfo Miranda
- Departamento de Química Orgánica, Facultad de C.C. Químicas, Universidad Complutense de Madrid, 28040 Madrid, Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Instituto Madrileño de Estudios Avanzados en Nanociencia, IMDEA-Nanociencia, 28049 Madrid, and Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Nazario Martín
- Departamento de Química Orgánica, Facultad de C.C. Químicas, Universidad Complutense de Madrid, 28040 Madrid, Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Instituto Madrileño de Estudios Avanzados en Nanociencia, IMDEA-Nanociencia, 28049 Madrid, and Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
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11
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Bedwani S, Wegner D, Crommie MF, Rochefort A. Strongly reshaped organic-metal interfaces: tetracyanoethylene on Cu(100). PHYSICAL REVIEW LETTERS 2008; 101:216105. [PMID: 19113430 DOI: 10.1103/physrevlett.101.216105] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2008] [Indexed: 05/08/2023]
Abstract
The interaction of the strong electron-acceptor tetracyanoethylene with the Cu(100) surface is studied with scanning tunneling microscopy experiments and first-principles density functional theory calculations. We compare two different adsorption models with the experimental results and show that the molecular self-assembly is caused by a strong structural modification of the Cu(100) surface rather than the formation of a coordination network by diffusing Cu adatoms. Surface atoms become highly buckled, and the chemisorption of tetracyanoethylene is accompanied by a partial charge transfer.
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Affiliation(s)
- Stéphane Bedwani
- Département de génie physique and Regroupement québécois sur les matériaux de pointe, Ecole Polytechnique de Montréal, Montréal, Québec H3C 3A7, Canada.
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12
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Weber-Bargioni A, Auwärter W, Klappenberger F, Reichert J, Lefrançois S, Strunskus T, Wöll C, Schiffrin A, Pennec Y, Barth JV. Visualizing the Frontier Orbitals of a Conformationally Adapted Metalloporphyrin. Chemphyschem 2008; 9:89-94. [DOI: 10.1002/cphc.200700600] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Abstract
The engineering of highly organized systems from instructed molecular building blocks opens up new vistas for the control of matter and the exploration of nanodevice concepts. Recent investigations demonstrate that well-defined surfaces provide versatile platforms for steering and monitoring the assembly of molecular nanoarchitectures in exquisite detail. This review delineates the principles of noncovalent synthesis on metal substrates under ultrahigh vacuum conditions and briefly assesses the pertaining terminology-self-assembly, self-organization, and self-organized growth. It presents exemplary scanning-tunneling-microscopy observations, providing atomistic insight into the self-assembly of organic clusters, chains, and superlattices, and the metal-directed assembly of low-dimensional coordination architectures. This review also describes hierarchic-assembly protocols leading to intricate multilevel order. Molecular architectonic on metal surfaces represents a versatile rationale to realize structurally complex nanosystems with specific shape, composition, and functional properties, which bear promise for technological applications.
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Affiliation(s)
- Johannes V Barth
- Department of Chemistry, The University of British Columbia, Vancouver B.C. V6T 1Z4, Canada.
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14
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Deak DS, Silly F, Porfyrakis K, Castell MR. Controlled surface ordering of endohedral fullerenes with a SrTiO(3) template. NANOTECHNOLOGY 2007; 18:075301. [PMID: 21730496 DOI: 10.1088/0957-4484/18/7/075301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The ability to select the way in which atoms and molecules self-organize on a surface is important for synthesizing nanometre scale devices. Here we show how endohedral fullerenes (Er(3)N@C(80)) can be assembled into four distinctive arrangements on a strontium titanate surface template. Each template pattern correlates to a particular reconstruction on n-doped SrTiO(3)(001), made in whole or in part by self-assembled arrays of non-stoichiometric oxide nanostructures. Close-packed assemblies of Er(3)N@C(80) molecules are formed, as well as one-dimensional chains and two-dimensional grids. This method of template-assisted molecular ordering provides a new platform for the development of experimental schemes of classical and quantum information processing at the molecular level.
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Affiliation(s)
- David S Deak
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
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15
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Felici R, Pedio M, Borgatti F, Iannotta S, Capozi M, Ciullo G, Stierle A. X-ray-diffraction characterization of Pt(111) surface nanopatterning induced by C60 adsorption. NATURE MATERIALS 2005; 4:688-92. [PMID: 16113682 DOI: 10.1038/nmat1456] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2005] [Revised: 02/23/2005] [Accepted: 06/29/2005] [Indexed: 05/04/2023]
Abstract
Understanding the adsorption mechanisms of large molecules on metal surfaces is a demanding task. Theoretical predictions are difficult because of the large number of atoms that have to be considered in the calculations, and experiments aiming to solve the molecule-substrate interaction geometry are almost impossible with standard laboratory techniques. Here, we show that the adsorption of complex organic molecules can induce perfectly ordered nanostructuring of metal surfaces. We use surface X-ray diffraction to investigate in detail the bonding geometry of C(60) with the Pt(111) surface, and to elucidate the interaction mechanism leading to the restructuring of the Pt(111) surface. The chemical interaction between one monolayer of C(60) molecules and the clean Pt(111) surface results in the formation of an ordered sqrt[13] x sqrt[13]R13.9 degrees reconstruction based on the creation of a surface vacancy lattice. The C(60) molecules are located on top of the vacancies, and 12 covalent bonds are formed between the carbon atoms and the 6 platinum surface atoms around the vacancies. In-plane displacements induced on the platinum substrate are of the order of a few picometres in the top layer, and are undetectable in the deeper layers.
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Affiliation(s)
- Roberto Felici
- OGG-INFM, c/o ESRF, BP 220, F-38043 Grenoble Cedex 9, France.
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16
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Wadayama T, Aoshima K, Kawano S, Hatta A. Infrared absorption enhancement of C60 by overlaying thin silver island films. APPLIED SPECTROSCOPY 2004; 58:299-303. [PMID: 15035710 DOI: 10.1366/000370204322886645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Normal-incidence infrared absorption has been observed for silver overlaid C(60) thin films formed on surface-oxidized Si(111) substrates as a function of the silver or C(60) film thickness. The absorption spectra exhibit bands at 1429 and 1180 cm(-1) due, respectively, to the infrared active T(lu) (4) and T(lu) (3) modes of C(60) in multi-layers. Additionally, two bands appear at 1442 and 1370 cm(-1). The former band is caused by activation of the infrared inactive (Raman active) A(g) (2) mode via electron transfer from the silver to adsorbed C(60), and the latter is assigned to the T(1u) (4) mode red-shifted by the charge transfer. These bands are all enhanced in intensity dependent either upon the silver or C(60) thickness, i.e., the largest absorption enhancement is obtained for 25-monolayers-thick silver and 12-nm-thick C(60). Under atomic force microprobe inspection, the average size and height of the islands in the overlaid 25-monolayers-thick silver change with underlying C(60) film thickness. The influence of the C(60) film structure upon the silver film and in turn the absorption intensity is strongly suggested.
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Affiliation(s)
- T Wadayama
- Department of Materials Science, Graduate School of Engineering, Tohoku University, Aobayama 02, Sendai 980-8579, Japan
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17
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Ogawa A, Tachibana M, Kondo M, Yoshizawa K, Fujimoto H, Hoffmann R. Orbital Interactions between a C60 Molecule and Cu(111) Surface. J Phys Chem B 2003. [DOI: 10.1021/jp0303220] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Atsushi Ogawa
- Department of Molecular Engineering, Kyoto University, Kyoto 606-8501, Japan, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 812-8581, Japan, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301
| | - Masamitsu Tachibana
- Department of Molecular Engineering, Kyoto University, Kyoto 606-8501, Japan, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 812-8581, Japan, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301
| | - Masakazu Kondo
- Department of Molecular Engineering, Kyoto University, Kyoto 606-8501, Japan, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 812-8581, Japan, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301
| | - Kazunari Yoshizawa
- Department of Molecular Engineering, Kyoto University, Kyoto 606-8501, Japan, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 812-8581, Japan, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301
| | - Hiroshi Fujimoto
- Department of Molecular Engineering, Kyoto University, Kyoto 606-8501, Japan, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 812-8581, Japan, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301
| | - Roald Hoffmann
- Department of Molecular Engineering, Kyoto University, Kyoto 606-8501, Japan, Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 812-8581, Japan, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301
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18
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Schunack M, Rosei F, Naitoh Y, Jiang P, Gourdon A, Lægsgaard E, Stensgaard I, Joachim C, Besenbacher F. Adsorption behavior of Lander molecules on Cu(110) studied by scanning tunneling microscopy. J Chem Phys 2002. [DOI: 10.1063/1.1498475] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Rosei F, Schunack M, Jiang P, Gourdon A, Laegsgaard E, Stensgaard I, Joachim C, Besenbacher F. Organic molecules acting as templates on metal surfaces. Science 2002; 296:328-31. [PMID: 11951041 DOI: 10.1126/science.1069157] [Citation(s) in RCA: 198] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The electronic connection of single molecules to nanoelectrodes on a surface is a basic, unsolved problem in the emerging field of molecular nanoelectronics. By means of variable temperature scanning tunneling microscopy, we show that an organic molecule (C90H98), known as the Lander, can cause the rearrangement of atoms on a Cu(110) surface. These molecules act as templates accommodating metal atoms at the step edges of the copper substrate, forming metallic nanostructures (0.75 nanometers wide and 1.85 nanometers long) that are adapted to the dimensions of the molecule.
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Affiliation(s)
- F Rosei
- Institute of Physics and Astronomy and CAMP, University of Aarhus, 8000 Aarhus C, Denmark
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