Weak intermolecular interactions in an ionically bound molecular adsorbate: cyclopentadienyl=Cu(111)

Hedgeland, H., Lechner, B. A. J., Tuddenham, F. E., Jardine, A. P., Allison, W., Ellis, J., Sacchi, M., Jenkins, S. J. and Hinch, B. J. (2011) Weak intermolecular interactions in an ionically bound molecular adsorbate: cyclopentadienyl=Cu(111). Physical Review Letters, 106 (18). 186101. ISSN 0031-9007 doi: 10.1103/PhysRevLett.106.186101

Abstract/Summary

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
URI	https://reading-clone.eprints-hosting.org/id/eprint/39059
Identification Number/DOI	10.1103/PhysRevLett.106.186101
Refereed	Yes
Divisions	No Reading authors. Back catalogue items
Publisher	American Physical Society
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