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Weak Intermolecular Interactions in an Ionically Bound Molecular Adsorbate: Cyclopentadienyl/Cu(111)

Hedgeland, H, Lechner, BAJ, Tuddenham, FE, Jardine, AP, Allison, W, Ellis, J, Sacchi, M, Jenkins, SJ and Hinch, BJ (2011) Weak Intermolecular Interactions in an Ionically Bound Molecular Adsorbate: Cyclopentadienyl/Cu(111) Physical Review Letters, 106 (18).

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Abstract

The dissociative adsorption of cyclopentadiene (C5H6) on Cu(111) yields a cyclopentadienyl (Cp) species with strongly anionic characteristics. The Cp potential energy surface and frictional coupling to the substrate are determined from measurements of dynamics of the molecule together with density functional calculations. The molecule is shown to occupy degenerate threefold adsorption sites and molecular motion is characterized by a low diffusional energy barrier of 40±3  meV with strong frictional dissipation. Repulsive dipole-dipole interactions are not detected despite charge transfer from substrate to adsorbate.

Item Type: Article
Subjects : Chemistry
Authors :
NameEmailORCID
Hedgeland, HUNSPECIFIEDUNSPECIFIED
Lechner, BAJUNSPECIFIEDUNSPECIFIED
Tuddenham, FEUNSPECIFIEDUNSPECIFIED
Jardine, APUNSPECIFIEDUNSPECIFIED
Allison, WUNSPECIFIEDUNSPECIFIED
Ellis, JUNSPECIFIEDUNSPECIFIED
Sacchi, Mm.sacchi@surrey.ac.ukUNSPECIFIED
Jenkins, SJUNSPECIFIEDUNSPECIFIED
Hinch, BJUNSPECIFIEDUNSPECIFIED
Date : 6 May 2011
Identification Number : 10.1103/PhysRevLett.106.186101
Copyright Disclaimer : © 2011 American Physical Society
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/840865

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