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Bond-selective energy redistribution in the chemisorption of CH3D and CD3H on Pt{1 1 0}-(1 × 2): A first-principles molecular dynamics study

Sacchi, M, Wales, DJ and Jenkins, SJ (2012) Bond-selective energy redistribution in the chemisorption of CH3D and CD3H on Pt{1 1 0}-(1 × 2): A first-principles molecular dynamics study Computational and Theoretical Chemistry, 990. pp. 144-151.

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Abstract

We have investigated the chemisorption of CH3D and CD3H on Pt{1 1 0}-(1 × 2) by performing first-principles molecular dynamics simulations of the recombinative desorption of CH3D (from adsorbed methyl and deuterium) and of CD3H (from adsorbed trideuteromethyl and hydrogen). Vibrational analysis of the symmetry adapted internal coordinates of the desorbing molecules shows that excitation of the single C–D (C–H) bond in the parent molecule is strongly correlated with energy excess in the reaction coordinate. The results of the molecular dynamics simulations are consistent with observed mode- and bond-specific reactivity measurements for chemisorption of methane and its isotopomers on platinum and nickel surfaces.

Item Type: Article
Subjects : Chemistry
Authors :
NameEmailORCID
Sacchi, Mm.sacchi@surrey.ac.ukUNSPECIFIED
Wales, DJUNSPECIFIEDUNSPECIFIED
Jenkins, SJUNSPECIFIEDUNSPECIFIED
Date : 15 June 2012
Identification Number : 10.1016/j.comptc.2011.11.048
Copyright Disclaimer : 2011 Elsevier B.V. All rights reserved.
Uncontrolled Keywords : Dynamics, Methane, Chemisorption, Mode-specificity, Bond-specificity, Pt{1 1 0}
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:56
Last Modified : 18 May 2017 12:53
URI: http://epubs.surrey.ac.uk/id/eprint/840860

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