Structure determination for coadsorbed molecular fragments using chemical shift photoelectron diffraction

K. U. Weiss, R. Dippel, K. M. Schindler, P. Gardner, V. Fritzsche, A. M. Bradshaw, D. P. Woodruff, M. C. Asensio, A. R. González-Elipe

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Chemical shift photoelectron diffraction has been applied to the model system of coadsorbed PFx(x = 1,2,3) species on Ni(111), produced by electron beam fragmentation of a PF3 overlayer, to determine quantitatively and independently the local adsorption site of each species. PF3 is found to occupy atop adsorption sites above the outermost Ni layer atoms at a P-Ni bond length of (2.07 ± 0.05) Å, PF2 occupies bridge sites at a spacing of (1.70 ± 0.05) Å, while the PF species occupy both types of threefold coordinated hollow sites, maintaining a constant P coordination throughout the fragmentation.
    Original languageEnglish
    Pages (from-to)581-584
    Number of pages3
    JournalPhysical Review Letters
    Volume71
    Issue number4
    Publication statusPublished - 1993

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