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Chikhaoui A, Ziane M, Tazibt S, Bouarab S, Vega A. Unveiling the effects of doping small nickel clusters with a sulfur impurity. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2320-2] [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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Chikhaoui A, Haddab K, Bouarab S, Vega A. Density Functional Study of the Structures and Electronic Properties of Nitrogen-Doped Nin Clusters, n = 1–10. J Phys Chem A 2011; 115:13997-4005. [DOI: 10.1021/jp207861p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Chikhaoui
- Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. No. 17 RP, 15000 Tizi-Ouzou, Algeria
| | - K. Haddab
- Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. No. 17 RP, 15000 Tizi-Ouzou, Algeria
| | - S. Bouarab
- Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. No. 17 RP, 15000 Tizi-Ouzou, Algeria
| | - A. Vega
- Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, Prado de la Magdalena s/n, E-47011 Valladolid, Spain
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Dkhissi A, Estève A, Jeloaica L, Estève D, Rouhani MD. Self-Assembled Monolayers and Preorganization of Organosilanes Prior to Surface Grafting onto Silica: A Quantum Mechanical Study. J Am Chem Soc 2005; 127:9776-80. [PMID: 15998082 DOI: 10.1021/ja040246u] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Quantum chemical calculations have been carried out on the grafting of chain organosilane compounds on SiO(2)-hydroxylated solid surfaces. It is shown that a single molecule interacting with the surface lies flat to it, inhibiting further homogeneous film growth. This adsorption exhibits two molecule/surface interactions: a covalent bond on one side of the molecule and a hydrogen bond on the other side. We then investigate the possible preorganization of the molecules before grafting due to the presence of water molecules either in the gas/liquid phase or near the surface. This gives rise to the formation of dimerized chains. We then demonstrate that this preorganization process prevents subsequent lying flat of the molecules to the substrate after grafting. Energetics and associated configurations of the overall deposition process are discussed in detail and provide new insights on the understanding of the formation of self-assembled homogeneous organic films on microelectronics-type substrates.
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Affiliation(s)
- A Dkhissi
- Laboratoire d'Analyse et d'Architecture des Systèmes-CNRS, 7 av. du Colonel Roche, 31077 Toulouse, France.
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Diaconu CV, Cho AE, Doll JD, Freeman DL. Broken-symmetry unrestricted hybrid density functional calculations on nickel dimer and nickel hydride. J Chem Phys 2004; 121:10026-40. [PMID: 15549878 DOI: 10.1063/1.1798992] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the present work we investigate the adequacy of broken-symmetry unrestricted density functional theory for constructing the potential energy curve of nickel dimer and nickel hydride, as a model for larger bare and hydrogenated nickel cluster calculations. We use three hybrid functionals: the popular B3LYP, Becke's newest optimized functional Becke98, and the simple FSLYP functional (50% Hartree-Fock and 50% Slater exchange and LYP gradient-corrected correlation functional) with two basis sets: all-electron (AE) Wachters+f basis set and Stuttgart RSC effective core potential (ECP) and basis set. We find that, overall, the best agreement with experiment, comparable to that of the high-level CASPT2, is obtained with B3LYP/AE, closely followed by Becke98/AE and Becke98/ECP. FSLYP/AE and B3LYP/ECP give slightly worse agreement with experiment, and FSLYP/ECP is the only method among the ones we studied that gives an unacceptably large error, underestimating the dissociation energy of Ni(2) by 28%, and being in the largest disagreement with the experiment and the other theoretical predictions. We also find that for Ni(2), the spin projection for the broken-symmetry unrestricted singlet states changes the ordering of the states, but the splittings are less than 10 meV. All our calculations predict a deltadelta-hole ground state for Ni(2) and delta-hole ground state for NiH. Upon spin projection of the singlet state of Ni(2), almost all of our calculations: Becke98 and FSLYP both AE and ECP and B3LYP/AE predict (1)(d(A)(x(2)-y(2)d(B)(x(2)-y(2)) or (1)(d(A)(xy) (d)(B)(xy)) ground state, which is a mixture of (1)Sigma(g) (+) and (1)Gamma(g). B3LYP/ECP predicts a (3)(d(A)(x(2)-y(2))d(B)(xy) (mixture of (3)Sigma(g) (-) and (3)Gamma(u)) ground state virtually degenerate with the (1)(d(A)(x(2)-y(2)d(B)(x)(2)-y(2)/(1)(d(A)(xy)D(B)(xy) state. The doublet delta-hole ground state of NiH predicted by all our calculations is in agreement with the experimentally predicted (2)Delta ground state. For Ni(2), all our results are consistent with the experimentally predicted ground state of 0(g) (+) (a mixture of (1)Sigma(g) (+) and (3)Sigma(g) (-)) or 0(u) (-) (a mixture of (1)Sigma(u) (-) and (3)Sigma(u) (+)).
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Affiliation(s)
- Cristian V Diaconu
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA.
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Valiev M, Bylaska EJ, Weare JH. Calculations of the electronic structure of 3d transition metal dimers with projector augmented plane wave method. J Chem Phys 2003. [DOI: 10.1063/1.1602694] [Citation(s) in RCA: 34] [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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Legault MD, Bacelo DE. Theoretical Study of the Adsorption of Bisulfate on Small Gold Clusters. J Phys Chem A 2002. [DOI: 10.1021/jp0257303] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marc D. Legault
- Department of Physics, University of Puerto Rico at Bayamón, 170 Road 174, Parque Industrial Minillas, Bayamón, PR 00959
| | - Daniel E. Bacelo
- Department of Sciences and Technology, Universidad Metropolitana, P.O. Box 21150, San Juan, PR 00927-1150
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Knickelbein MB. Nickel clusters: The influence of adsorbates on magnetic moments. J Chem Phys 2002. [DOI: 10.1063/1.1477175] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Majumdar D, Dai D, Balasubramanian K. Theoretical study of electronic states of platinum pentamer (Pt5). J Chem Phys 2000. [DOI: 10.1063/1.1316009] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Majumdar D, Dai D, Balasubramanian K. Theoretical study of the electronic states of platinum trimer (Pt3). J Chem Phys 2000. [DOI: 10.1063/1.1316039] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Xiang Y, Sun DY, Gong XG. Generalized Simulated Annealing Studies on Structures and Properties of Nin (n = 2−55) Clusters. J Phys Chem A 2000. [DOI: 10.1021/jp992923q] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Xiang
- Institute of Solid State Physics, Academia Sinica, 230031-Hefei, P. R. China
| | - D. Y. Sun
- Institute of Solid State Physics, Academia Sinica, 230031-Hefei, P. R. China
| | - X. G. Gong
- Institute of Solid State Physics, Academia Sinica, 230031-Hefei, P. R. China
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Bacelo DE, Binning RC, Ishikawa Y. Ab Initio Monte Carlo Simulated Annealing Study of HCl(H2O)n (n = 3, 4) Clusters. J Phys Chem A 1999. [DOI: 10.1021/jp9843003] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel E. Bacelo
- Department of Chemistry, University of Puerto Rico, P.O. Box 23346, San Juan, PR 00931-3346
| | - R. C. Binning
- Department of Chemistry, University of Puerto Rico, P.O. Box 23346, San Juan, PR 00931-3346
| | - Yasuyuki Ishikawa
- Department of Chemistry, University of Puerto Rico, P.O. Box 23346, San Juan, PR 00931-3346
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Curotto E, Freeman DL, Chen B, Doll J. The melting transition of Ni7 and Ni7H as modeled by a semi-empirical potential. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)00991-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reddy BV, Nayak SK, Khanna SN, Rao BK, Jena P. Physics of Nickel Clusters. 2. Electronic Structure and Magnetic Properties. J Phys Chem A 1998. [DOI: 10.1021/jp980262b] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B. V. Reddy
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - S. K. Nayak
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - S. N. Khanna
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - B. K. Rao
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - P. Jena
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
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Comparison of density functional and MP2 geometry optimizations of Na(H2O)n (n = 1–3) clusters. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0166-1280(97)00132-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Curotto E, Matro A, Freeman DL, Doll JD. A semi-empirical potential for simulations of transition metal clusters: Minima and isomers of Nin (n=2–13) and their hydrides. J Chem Phys 1998. [DOI: 10.1063/1.475433] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Duarte HA, Salahub DR. NO/Ni, NO/Ni2, and (NO)2/Ni2 Interactions. A Density Functional Study. J Phys Chem B 1997. [DOI: 10.1021/jp9706801] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hélio A. Duarte
- Département de Chimie, Université de Montréal, C.P. 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canada
| | - Dennis R. Salahub
- Département de Chimie, Université de Montréal, C.P. 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canada
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Vajda Š, Wolf S, Leisner T, Busolt U, Wöste LH, Wales DJ. Reactions of size-selected positively charged nickel clusters with carbon monoxide in molecular beams. J Chem Phys 1997. [DOI: 10.1063/1.474688] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bernardi F, Bottoni A, Calcinari M, Rossi I, Robb MA. Comparison between CASPT2 and DFT in the Study of Ni(C2H4)2 Complexes. J Phys Chem A 1997. [DOI: 10.1021/jp970998t] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fernando Bernardi
- Dipartimento di Chimica “G. Ciamician”, Universita' di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Andrea Bottoni
- Dipartimento di Chimica “G. Ciamician”, Universita' di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Michele Calcinari
- Dipartimento di Chimica “G. Ciamician”, Universita' di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Ivan Rossi
- Dipartimento di Chimica “G. Ciamician”, Universita' di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Michael A. Robb
- Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K
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Bernardi F, Bottoni A. Polar Effect in Hydrogen Abstraction Reactions from Halo-Substituted Methanes by Methyl Radical: A Comparison between Hartree−Fock, Perturbation, and Density Functional Theories. J Phys Chem A 1997. [DOI: 10.1021/jp9620680] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fernando Bernardi
- Dipartimento di Chimica “G. Ciamician”, Universita' di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Andrea Bottoni
- Dipartimento di Chimica “G. Ciamician”, Universita' di Bologna, via Selmi 2, 40126 Bologna, Italy
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Nayak SK, Khanna SN, Rao BK, Jena P. Physics of Nickel Clusters: Energetics and Equilibrium Geometries. J Phys Chem A 1997. [DOI: 10.1021/jp962720r] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saroj K. Nayak
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284
| | - S. N. Khanna
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284
| | - B. K. Rao
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284
| | - P. Jena
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284
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Wonchoba SE, Truhlar DG. General potential-energy function for H/Ni and dynamics calculations of surface diffusion, bulk diffusion, subsurface-to-surface transport, and absorption. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:11222-11241. [PMID: 9982698 DOI: 10.1103/physrevb.53.11222] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Lathiotakis NN, Andriotis AN, Menon M, Connolly J. Tight binding molecular dynamics study of Ni clusters. J Chem Phys 1996. [DOI: 10.1063/1.470823] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bottoni A. Theoretical study of the addition of alkyl and halogenoalkyl radicals to the ethylene double bond: a comparison between Hartree–Fock, perturbation theory and density functional theory. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/p29960002041] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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VAN SANTEN RUTGERA, NEUROCK MATTHEW. Concepts in Theoretical Heterogeneous Catalytic Reactivity. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 1995. [DOI: 10.1080/01614949508006451] [Citation(s) in RCA: 202] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Semilocal density functionals for exchange and correlation: Theory and applications. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s1380-7323(05)80032-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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32
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Menon M, Connolly J, Lathiotakis N, Andriotis A. Tight-binding molecular-dynamics study of transition-metal clusters. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:8903-8906. [PMID: 9974923 DOI: 10.1103/physrevb.50.8903] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Castro M, Salahub DR, Fournier R. A density functional study of FeCO, FeCO−, and FeCO+. J Chem Phys 1994. [DOI: 10.1063/1.466766] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ackermann L, Rösch N. Chemisorption of sulfur on nickel: A study of cluster convergence in the linear combination of Gaussian‐type orbitals local density functional approach. J Chem Phys 1994. [DOI: 10.1063/1.467067] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Castro M, Salahub DR. Density-functional calculations for small iron clusters: Fen, Fen+, and Fen- for n <= 5. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:11842-11852. [PMID: 10010053 DOI: 10.1103/physrevb.49.11842] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Density Functional Theory, Its Gaussian Implementation and Applications to Complex Systems. RELATIVISTIC AND ELECTRON CORRELATION EFFECTS IN MOLECULES AND SOLIDS 1994. [DOI: 10.1007/978-1-4899-1340-1_14] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Saalfrank P, Miller WH. Time‐independent quantum dynamics for diatom–surface scattering. J Chem Phys 1993. [DOI: 10.1063/1.464464] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fan L, Ziegler T. Application of density functional theory to infrared absorption intensity calculations on main group molecules. J Chem Phys 1992. [DOI: 10.1063/1.462258] [Citation(s) in RCA: 213] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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