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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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2
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Kaiser A, Viñes F, Illas F, Ritter M, Hagelberg F, Probst M. Vacancy patterning and patterning vacancies: controlled self-assembly of fullerenes on metal surfaces. NANOSCALE 2014; 6:10850-10858. [PMID: 25113172 DOI: 10.1039/c4nr02717e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A density functional theory study accounting for van der Waals interactions reveals the potential of metal surface vacancies as anchor points for the construction of user-defined 2D patterns of adsorbate molecules via a controlled self-assembly process. Vice versa, energetic criteria indicate the formation of regular adsorbate-induced vacancies after adsorbate self-assembly on clean surfaces. These processes are exemplified by adsorbing C₆₀ fullerene on Al(111), Au(111), and Be(0001) surfaces with and without single, triple, and septuple atom pits. An analysis of vacancy-adatom formation energetics precedes the study of the adsorption processes.
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Affiliation(s)
- Alexander Kaiser
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
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3
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Rius J. Application of Patterson-function direct methods to materials characterization. IUCRJ 2014; 1:291-304. [PMID: 25295171 PMCID: PMC4174872 DOI: 10.1107/s2052252514017606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 07/31/2014] [Indexed: 06/03/2023]
Abstract
The aim of this article is a general description of the so-called Patterson-function direct methods (PFDM), from their origin to their present state. It covers a 20-year period of methodological contributions to crystal structure solution, most of them published in Acta Crystallographica Section A. The common feature of these variants of direct methods is the introduction of the experimental intensities in the form of the Fourier coefficients of origin-free Patterson-type functions, which allows the active use of both strong and weak reflections. The different optimization algorithms are discussed and their performances compared. This review focuses not only on those PFDM applications related to powder diffraction data but also on some recent results obtained with electron diffraction tomography data.
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Affiliation(s)
- Jordi Rius
- Institut de Ciència de Materials de Barcelona, CSIC, Campus de la UAB, Bellaterra, Catalonia 08193, Spain
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4
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Betti MG, Gargiani P, Mariani C, Biagi R, Fujii J, Rossi G, Resta A, Fabris S, Fortuna S, Torrelles X, Kumar M, Pedio M. Structural phases of ordered FePc-nanochains self-assembled on Au(110). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13232-13240. [PMID: 22931538 DOI: 10.1021/la302192n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Iron-phthalocyanine molecules deposited on the Au(110) reconstructed channels assemble into one-dimensional molecular chains, whose spatial distribution evolves into different structural phases at increasing molecular density. The plasticity of the Au channels first induces an ordered phase with a 5×5 symmetry, followed by a second long-range ordered structure composed by denser chains with a 5×7 periodicity with respect to the bare Au surface, as observed in the low-energy electron-diffraction (LEED) and grazing incidence X-ray diffraction (GIXRD) patterns. The geometry of the FePc molecular assemblies in the Au nanorails is determined by scanning tunneling microscopy (STM). For the 5×7 phases, the GIXRD analysis identifies a "4-3" rows profile along the [001] direction in the Au surface and an on-top FePc adsorption site, further confirmed by density functional theory (DFT) calculations. The latter also reveals the electronic mixing of the interface states. The chain assembly is driven by the molecule-molecule interaction and the chains interact with the Au nanorails via the central metal atom, while the chain-chain distance in the different structural phases is primarily driven by the plasticity of the Au surface.
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Affiliation(s)
- Maria Grazia Betti
- Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Roma, Italy
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5
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Huang M. First-principles study on the reconstruction induced by the adsorption of C60 on Pt(111). Phys Chem Chem Phys 2012; 14:4959-63. [PMID: 22377686 DOI: 10.1039/c2cp23592g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The adsorption of C60 on a Pt(111) surface and the origins of the √13 × √13R13.9° or 2√3 × 2√3R30° reconstruction of the C60/Pt(111) system have been investigated by means of first-principles calculations. In agreement with the experimental observations, our calculations reveal that the C60 molecule binds covalently on the Pt(111) surface. The C60 molecule adsorbs on the Pt(111) surface with the center of a hexagonal ring located on top of a surface Pt atom. The surface Pt atom can be removed easily, forming a Pt vacancy upon the adsorption of C60 molecule. Our calculation results show that the strong covalent bonds between C60 and the Pt(111) surface and the formation of adatom-vacancy pairs in the C60/Pt(111) system may be the main driving forces promoting the substrate reconstructing pattern observed in experiments.
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Affiliation(s)
- Min Huang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China.
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6
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Tang L, Xie Y, Guo Q. Complex orientational ordering of C60 molecules on Au(111). J Chem Phys 2012; 135:114702. [PMID: 21950878 DOI: 10.1063/1.3639106] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The orientation and adsorption site for C(60) molecules on Au(111) has been studied using low temperature scanning tunneling microscopy. A complex orientational ordering has been observed for molecules inside the "in-phase" (R0°) domain. A 7-molecule cluster consisting a central molecule sitting atop of a gold atom and 6 tilted surrounding molecules is identified as the structural motif. The 2√3 × 2√3-R30° phase consists of molecules bonding to a gold atomic vacancies with a preferred azimuthal orientation. The quasi-periodic R14° phase is composed of groups of similarly oriented molecules with the groups organized into a 4√3 × 4√3-R30° like super-lattice unit cell.
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Affiliation(s)
- Lin Tang
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
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7
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Cantrell RA, James C, Clancy P. Computationally derived rules for persistence of C60 nanowires on recumbent pentacene bilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9944-9954. [PMID: 21732668 DOI: 10.1021/la201576z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The tendency for C(60) nanowires to persist on two monolayers of recumbent pentacene is studied using molecular dynamics (MD) simulations. A review of existing experimental literature for the tilt angle adopted by pentacene on noble metal surfaces shows that studies cover a limited range from 55° to 90°, motivating simulation studies of essentially the entire range of tilt angles (10°-90°) to predict the optimum surface tilt angle for C(60) nanowire formation. The persistence of a 1D nanowire depends sensitively on this tilt angle, the amount of initial tensile strain, and the presence of surface step edges. At room temperature, C(60) nanowires oriented along the pentacene short axes persist for several nanoseconds and are more likely to occur if they reside between, or within, pentacene rows for ϕ ≤ ∼60°. The likelihood of this persistence increases the smaller the tilt angle. Nanowires oriented along the long axes of pentacene molecules are unlikely to form. The limit of stability of nanowires was tested by raising the temperature to 400 K. Nanowires located between pentacene rows survived this temperature rise, but those located initially within pentacene rows are only stable in the range ϕ(1) = 30°-50°. Flatter pentacene surfaces, that is, tilt angles above about 60°, are subject to disorder caused by C(60) molecules "burrowing" into the pentacene surface. An initial strain of 5% applied to the C(60) nanowires significantly decreases the likelihood of nanowire persistence. In contrast, any appreciable surface roughness, even by half a monolayer in height of a third pentacene monolayer, strongly enhances the likelihood of nanowire formation due to the strong binding energy of C(60) molecules to step edges.
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Affiliation(s)
- Rebecca A Cantrell
- Department of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
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8
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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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9
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10
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Schull G, Berndt R. Orientationally ordered (7x7) superstructure of C60 on AU(111). PHYSICAL REVIEW LETTERS 2007; 99:226105. [PMID: 18233303 DOI: 10.1103/physrevlett.99.226105] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Indexed: 05/25/2023]
Abstract
Long range orientational order within C60 monolayers on Au(111) is observed with low-temperature scanning tunneling microscopy. A unit cell comprised of 49 molecules which adopt 11 different orientations is found. It can be divided in a faulted and an unfaulted half similar to the (7x7) reconstruction of Si(111). A model is proposed which shows how, through a Moiré-like effect, the substrate induces minute changes in the orientation of the C60 molecules. Intermolecular interactions are shown to play a major role in stabilizing the superlattice.
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Affiliation(s)
- G Schull
- Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany
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11
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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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12
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Danilov AV, Kubatkin SE, Kafanov SG, Bjørnholm T. Strong electronic coupling between single C60molecules and gold electrodes prepared by quench condensation at 4 K. A single molecule three terminal device study. Faraday Discuss 2006; 131:337-45; discussion 393-402. [PMID: 16512381 DOI: 10.1039/b506679b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first measurements of single C60 molecules trapped in three terminal devices prepared by quench condensation of a gold source and drain electrode on top of an aluminium gate electrode covered with a thin oxide. Our experimental platform allows source and drain electrodes to be fabricated on the gate oxide at low temperatures and high vacuum. In a subsequent step, single molecules are evaporated in situ onto the surface and caught in the gap between a source and a drain electrode. This fabrication method ensures a clean contact between the molecule and the gold electrode due to the unbroken vacuum. Our measurements reveal a strong interaction between the C60 molecule and the gold electrodes resulting in the absence of the Coulomb blockade effects observed by others. In addition, we observe an insignificant gate dependence but a pronounced negative differential resistance (NDR) at bias voltages from 20-50 meV. The position of the peak in the NDR shows a pronounced and universal temperature dependence for all six devices included in the study. The results are related to previous measurements in such devices which focus on the detailed nature of the contact region between the molecule the gold electrode.
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Affiliation(s)
- Andrey V Danilov
- Nano-Science Center, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
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13
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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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14
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Nakamura M, Ito M. Monomer structures of water adsorbed on p(2 x 2)-Ni(111)-O surface at 25 and 140 K studied by surface X-ray diffraction. PHYSICAL REVIEW LETTERS 2005; 94:035501. [PMID: 15698279 DOI: 10.1103/physrevlett.94.035501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2004] [Indexed: 05/24/2023]
Abstract
The structures of a monomeric water molecule adsorbed on p(2 x 2)-Ni(111)-O surface were determined by difference Fourier calculations. At temperatures of 25 K, water molecules chemisorb predominantly at 2 x 2 oxygen atom sites, forming an OH---O(ad) (2 x 2) hydrogen bond. A 2 x 2 oxygen atom (O(ad)) is surrounded by one to three monomeric water molecules, which take statistically disordered positions with threefold symmetry. At temperatures of 140 K, monomeric water molecules occupy a top site of Ni atoms via an oxygen lone pair and are stabilized as a singleton molecule on the surface.
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Affiliation(s)
- Masashi Nakamura
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Chiba University, Inage-ku, Chiba 263-8522, Japan
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15
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Torrelles X, Barrena E, Munuera C, Rius J, Ferrer S, Ocal C. New insights in the c(4 x 2) reconstruction of hexadecanethiol on Au(111) revealed by grazing incidence X-ray diffraction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:9396-9402. [PMID: 15461535 DOI: 10.1021/la048979f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The c(4 x 2) structure of C16H33SH alkanethiol monolayers self-assembled on Au(111) has been studied by grazing incidence X-ray diffraction. This structure coexists on the surface with the (radical3x radical3)R30 degrees phase. The structural refinement of the c(4 x 2) phase has been accomplished by omitting the fractional order reflections common to both structures. The surface unit cell consists of four symmetry-independent molecules with atomic displacements related by couples, such that only two nonequivalent chains are present in the surface cell. The stability between neighbor chains is due to van der Waals interactions. The substrate plays an important and non-negligible role in the c(4 x 2) reconstruction. The lateral and normal substrate relaxations to the surface plane are small, and gold atom displacements are lower than 0.25 angstroms but contribute very strongly to the fractional order intensities. The molecular chains form a close packed structure tilted by 37 degrees from the surface normal with no indications of dimer formation between closest S atoms.
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Affiliation(s)
- X Torrelles
- Institut de Ciència de Materials de Barcelona (CSIC), Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain.
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16
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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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17
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Stengel M, Vita AD, Baldereschi A. Adatom-vacancy mechanisms for the C6)/Al111-(6 x 6) reconstruction. PHYSICAL REVIEW LETTERS 2003; 91:166101. [PMID: 14611418 DOI: 10.1103/physrevlett.91.166101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2003] [Indexed: 05/04/2023]
Abstract
The irreversible (6x6) reconstruction of the C(60)/Al(111) system from the (2sqrt[3]x2sqrt[3])R30 degrees phase is studied by first-principles techniques. We find that C60 binds optimally to the surface if an Al vacancy is created directly underneath. The removed Al atoms form a (6x6) array of ad-dimers in the interstices below the C60 overlayer, to which they strongly bind. This spontaneous local process, rather than the compression state of the unreconstructed C60 overlayer, explains why one molecule out of three protrudes from the surface upon reconstruction.
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Affiliation(s)
- M Stengel
- Institut Romand de Recherche Numérique en Physique des Matériaux (IRRMA) and Institute of Theoretical Physics, EPFL, 1015 Lausanne, Switzerland.
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18
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Lu X, Grobis M, Khoo KH, Louie SG, Crommie MF. Spatially mapping the spectral density of a single C60 molecule. PHYSICAL REVIEW LETTERS 2003; 90:096802. [PMID: 12689248 DOI: 10.1103/physrevlett.90.096802] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2002] [Indexed: 05/24/2023]
Abstract
We have used scanning tunneling spectroscopy to spatially map the energy-resolved local density of states of individual C60 molecules on the Ag(100) surface. Spectral maps were obtained for molecular states derived from the C60 HOMO, LUMO, and LUMO+1 orbitals, revealing new details of the spatially inhomogeneous C60 local electronic structure. Spatial inhomogeneities are explained using ab initio pseudopotential density functional calculations. These calculations emphasize the need for explicitly including the C60-Ag interaction and STM tip trajectory to understand the observed C60 local electronic structure.
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Affiliation(s)
- Xinghua Lu
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
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19
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Weckesser J, Cepek C, Fasel R, Barth JV, Baumberger F, Greber T, Kern K. Binding and ordering of C60 on Pd(110): Investigations at the local and mesoscopic scale. J Chem Phys 2001. [DOI: 10.1063/1.1410391] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Schunack M, Petersen L, Kühnle A, Laegsgaard E, Stensgaard I, Johannsen I, Besenbacher F. Anchoring of organic molecules to a metal surface: HtBDC on Cu(110). PHYSICAL REVIEW LETTERS 2001; 86:456-459. [PMID: 11177854 DOI: 10.1103/physrevlett.86.456] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2000] [Indexed: 05/23/2023]
Abstract
The interaction of largish molecules with metal surfaces has been studied by combining the imaging and manipulation capabilities of the scanning tunneling microscope (STM). At the atomic scale, the STM results directly reveal that the adsorption of a largish organic molecule can induce a restructuring of a metal surface underneath. This restructuring anchors the molecules on the substrate and is the driving force for a self-assembly process of the molecules into characteristic molecular double rows.
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Affiliation(s)
- M Schunack
- CAMP and Institute of Physics and Astronomy, University of Aarhus, Denmark
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