Density Functional Theory Study of Benzene Adsorption on Small Pd and Pt Clusters

作者: Maurício T. de M. Cruz , José Walkimar de M. Carneiro , Donato A. G. Aranda , Michael Bühl

DOI: 10.1021/JP072572C

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摘要: Restricted and unrestricted B3LYP/LANL2DZ B3LYP/6-31G(d) calculations are employed to study the adsorption of benzene on small Pd7, Pd(7+3), Pt7, Pt(7+3) clusters. give bridge-30 site as most stable for Pd7 cluster, while Pd(7+3) is strongly tilted, leading an mode where two π-bonds more interact with metal cluster. Unrestricted (triplet spin state) favor tilted conformations so that both di-π-hcp stable. On Pt7 clusters even restricted lead di-π stable, a result reinforced by formalism, which also favors mode. The differences between much larger platinum than palladium, related fact atomic palladium...

参考文章(52)
H. Ohtani, M. A. Van Hove, G. A. Somorjai, Molecular structure of benzene coadsorbed with carbon monoxide on palladium(111): a dynamical low-energy electron diffraction analysis The Journal of Physical Chemistry. ,vol. 92, pp. 3974- 3982 ,(1988) , 10.1021/J100324A057
D. Majumdar, S. Roszak, K. Balasubramanian, Interaction of benzene (Bz) with Pt and Pt2: A theoretical study on Bz–Pt2, Bz2–Pt, Bz2–Pt2, and Bz3–Pt2 clusters Journal of Chemical Physics. ,vol. 114, pp. 10300- 10310 ,(2001) , 10.1063/1.1373691
P. Jeffrey Hay, Willard R. Wadt, Ab initio effective core potentials for molecular calculations. Potentials for K to Au including the outermost core orbitals Journal of Chemical Physics. ,vol. 82, pp. 299- 310 ,(1985) , 10.1063/1.448975
Ana Valcárcel, Anna Clotet, Josep M. Ricart, Françoise Delbecq, Philippe Sautet, Comparative DFT study of the adsorption of 1,3-butadiene, 1-butene and 2-cis/trans-butenes on the Pt(1 1 1) and Pd(1 1 1) surfaces Surface Science. ,vol. 549, pp. 121- 133 ,(2004) , 10.1016/J.SUSC.2003.11.036
Min Chi Tsai, E. L. Muetterties, Platinum metal surface chemistry of benzene and toluene Journal of the American Chemical Society. ,vol. 104, pp. 2534- 2539 ,(1982) , 10.1021/JA00373A034
W. T. Tysoe, R. M. Ormerod, R. M. Lambert, G. Zgrablich, A. Ramirez-Cuesta, Overlayer structure and kinetic behavior of benzene on palladium(111) The Journal of Physical Chemistry. ,vol. 97, pp. 3365- 3370 ,(1993) , 10.1021/J100115A046
P. R. N. De Souza, D. A. G. Aranda, J. W. De M. Carneiro, C. Da S. B. De Oliveira, O. A. C. Antunes, F. B. Passos, Theoretical study on the adsorption of aromatic compounds on platinum clusters International Journal of Quantum Chemistry. ,vol. 92, pp. 400- 411 ,(2003) , 10.1002/QUA.10520