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Dawoud JN, Fasfous II, Hamzeh SM, Jack DB. Structures of D2 layers on LiF(001). J Colloid Interface Sci 2010; 343:217-24. [PMID: 20044097 DOI: 10.1016/j.jcis.2009.09.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 09/14/2009] [Accepted: 09/15/2009] [Indexed: 11/27/2022]
Abstract
Classical Monte Carlo (MC) simulations of D(2) molecules physisorbed on LiF(001) surfaces are reported and show a series of interesting commensurate structure forms, viz., p(2x2) -->p(8x2) -->p(4x2), with coverages Theta=0.5, 0.625, and 0.75, respectively, and are stable up to 8 K. These structures are consistent with recent helium atom scattering (HAS) results (the p(4x2) is not observed) in terms of coverage and stability, but disagree in terms of symmetry. The p(2x2) structure contains two D(2) molecules per unit cell, with each molecule lying parallel to the plane of the surface directly above every other cationic site. For the p(4x2) structure, there are two kinds of adsorption sites: a parallel site, as in the case of p(2x2), and a tilted site, where the D(2) molecules sit between cationic and anionic sites with the molecular axis directed toward the anionic site, with a tilt angle of theta approximately 63 degrees. Perturbation theory calculations show that the adsorbed D(2) molecules are azimuthally delocalized and hence the structures are indeed c-type. Our calculations also indicate that o-D(2) and helicoptering p-D(2) species prefer cationic sites, compared to cartwheeling p-D(2) species.
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Affiliation(s)
- J N Dawoud
- Department of Chemistry, The Hashemite University, Zarqa 13115, Jordan.
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Daub CD, Patey GN, Jack DB, Sallabi AK. Monte Carlo simulations of the adsorption of CO2 on the MgO(100) surface. J Chem Phys 2006; 124:114706. [PMID: 16555909 DOI: 10.1063/1.2171277] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The adsorption of CO2 gas on the MgO (100) crystal surface is investigated using grand canonical Monte Carlo simulations. This allows us to obtain adsorption isotherms that can be compared with experiment, as well as to explore the possible formation of monolayers of different densities. Our model calculations agree reasonably well with the available experimental results. We find a "low-density" adsorbed monolayer where each CO2 molecule is bound to two Mg2+ ions on the MgO substrate. We also observe the formation of monolayers of higher density, where some of the CO2 molecules have rotated and tilted to expose additional binding sites. Low-temperature simulations of both the low- and high-density monolayers reveal that these states are very close in energy, with binding energies of approximately 7 kcal/mol at T=5 K. The high-density monolayer given by our model has a density that is significantly less than the reported experimental value. We discuss this discrepancy and offer suggestions for resolving it.
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Affiliation(s)
- Christopher D Daub
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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Dobrin S, He H, Naumkin FY, Polanyi JC, Raspopov SA. Photoinduced charge-transfer reaction at surfaces. II. HBr⋯Nan/LiF(001)+hv(610 nm)→Br−Nan+/LiF(001)+H(g). J Chem Phys 2003. [DOI: 10.1063/1.1615756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sallabi AK, Jack DB. Structures and stability of CO layers on the MgO(001) surface. J Chem Phys 2000. [DOI: 10.1063/1.481070] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kolár M, O'Shea SF. A high-temperature approximation for the path-integral quantum Monte Carlo method. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0305-4470/29/13/018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Giorgi JB, Kühnemuth R, Polanyi JC. Surface-aligned photochemistry: Photolysis of HCl adsorbed on LiF(001) studied by Rydberg-atom time-of-flight spectroscopy. J Chem Phys 1999. [DOI: 10.1063/1.478117] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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PELLENQ RJM, NICHOLSON D. A simple method for calculating dispersion coefficients for isolated and condensed-phase species. Mol Phys 1998. [DOI: 10.1080/00268979809483189] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Setzler JV, Guo H, Schatz GC. Photoinitiated Reaction Dynamics between Aligned Adsorbates on Solid Surfaces: A Theoretical Exploration of the H + CO2 System on LiF(001). J Phys Chem B 1997. [DOI: 10.1021/jp970178g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Josie V. Setzler
- Department of Chemistry, University of Toledo, Toledo, Ohio 43606-3390
| | - Hua Guo
- Department of Chemistry, University of Toledo, Toledo, Ohio 43606-3390
| | - George C. Schatz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113
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Garrett SJ, Heyd DV, Polanyi JC. Photochemistry of adsorbed molecules. XVIII. Photodissociation and exchange reaction in CH3Br/MgO(001) at 193 nm. J Chem Phys 1997. [DOI: 10.1063/1.473743] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chen W, Walker ARH, Novick SE, Tao FM. Determination of the structure of HBr DBr. J Chem Phys 1997. [DOI: 10.1063/1.474055] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Giorgi JB, Kühnemuth R, Polanyi JC, Wang JX. Photochemistry of adsorbed molecules. XVI. Photolysis of HX (X=Cl, Br, I) adsorbed on LiF(001), by Rydberg-atom time-of-flight spectroscopy. J Chem Phys 1997. [DOI: 10.1063/1.473055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Vu NT, Jakalian A, Jack DB. A simulation of the phase transition in monolayer CO/NaCl(001). J Chem Phys 1997. [DOI: 10.1063/1.473349] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Hu W, Saberi MA, Jakalian A, Jack DB. The monolayer and multilayer structure of CO2/NaCl(001). J Chem Phys 1997. [DOI: 10.1063/1.473159] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Barclay VJ, Hung W, Keogh WJ, Kühnemuth R, Polanyi JC, Zhang G, Zeiri Y, Jennison DR, Li YS. Photochemistry of adsorbed molecules. XV. Localized atomic scattering in the photolysis of HI/LiF(001) and HI/NaF(001). J Chem Phys 1996. [DOI: 10.1063/1.472339] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Martinez GM. Flory and Guggenheim lattice statistics reinterpreted and extended to include molecular clustering and chemical dissociation. J Chem Phys 1995. [DOI: 10.1063/1.469948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Seideman T, Guo H. Photodissociation of HCl+/MgO(001): The static and dynamic effects of the surface. J Chem Phys 1995. [DOI: 10.1063/1.470509] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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Lange G, Schmicker D, Toennies JP, Vollmer R, Weiss H. The structure and dynamics of CO2 on NaCl(001) studied by helium atom scattering. J Chem Phys 1995. [DOI: 10.1063/1.469706] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Shiang KD. Classical Trajectory Study of HF Desorption on LiF(001) Surface. J CHIN CHEM SOC-TAIP 1994. [DOI: 10.1002/jccs.199400051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Fang J, Guo H. Exact quantum and time‐dependent Hartree studies of the HBr/LiF(001) photodissociation dynamics. J Chem Phys 1994. [DOI: 10.1063/1.467816] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Interaction potentials for a lithium atom chemisorbed of LiF (001) surface. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)80026-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Barclay VJ, Polanyi JC, Zeiri Y, Kosloff R. Dynamics of surface‐aligned photochemistry. III. A quantum mechanical study of the photodissociation of HBr(ad)/LiF(001). J Chem Phys 1993. [DOI: 10.1063/1.464426] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Huang Z, Guo H. The orientation of adsorbed methyl halides on a LiF(001) surface: A Monte Carlo study. J Chem Phys 1993. [DOI: 10.1063/1.464731] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Huang Z, Guo H. Theoretical modeling of photodissociation dynamics of CH3I on LiF(001). J Chem Phys 1993. [DOI: 10.1063/1.464059] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Barclay VJ, Hung WH, Polanyi JC, Zhang G, Zeiri Y. Photochemistry of adsorbed molecules. Part 3.—Localised atomic scattering in the photolysis of HI/LiF(001). Faraday Discuss 1993. [DOI: 10.1039/fd9939600129] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Barclay VJ, Jack DB, Polanyi JC, Zeiri Y. Dynamics of surface‐aligned photochemistry (theory). II. Localized H‐atom scattering in the HBr(ad)/LiF(001)+hν system. J Chem Phys 1992. [DOI: 10.1063/1.463967] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Huang Z, Guo H. Dynamical simulations of the photodissociation of CH3Br on a LiF (001) surface. J Chem Phys 1992. [DOI: 10.1063/1.463150] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Kosloff R, Zeiri Y. A theoretical study of hydrogen diffraction following photodissociation of adsorbed molecules. J Chem Phys 1992. [DOI: 10.1063/1.463159] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Huang Z, Guo H. Simulation of photodissociation dynamics of HBr adsorbed on a LiF (001) surface. J Chem Phys 1992. [DOI: 10.1063/1.462309] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bourdon EBD, Cho C‐C, Das P, Polanyi JC, Stanners CD, Xu G‐Q. Photochemistry of adsorbed molecules. IX. Ultraviolet photodissociation and photoreaction of HBr on LiF(001). J Chem Phys 1991. [DOI: 10.1063/1.461118] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Blass PM, Jackson RC, Polanyi JC, Weiss H. Infrared spectroscopy of HX (X=Br,Cl) adsorbed on LiF(001): Alignment and orientation. J Chem Phys 1991. [DOI: 10.1063/1.460234] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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