Complementary vibrational and reflectance anisotropy spectroscopic determination of molecular azimuthal orientation

C. C. Perry, B. G. Frederick, J. R. Power, R. J. Cole, S. Haq, Q. Chen, N. V. Richardson, P. Weightman

Research output: Contribution to journalConference articlepeer-review

Abstract

Azimuthal orientations of 9-anthracene carboxylate (9-AC) on clean and p(2 × 1)O/Cu(110) surfaces were determined from a reflectance anisotropy spectroscopy (RAS) signal derived from an intramolecular electronic transition. The magnitude of the molecular signal on the p(2 × 1)O/Cu(110) surface is 4-5 times larger than on the clean surface. We present a complete vibrational assignment of adsorbed 9-AC based on Fourier transform infrared and on- and off-specular high resolution electron energy loss spectroscopy (HREELS) and ab initio calculations. Correlation of the off-specular HREELS on p(2 × 1)O/Cu(110) with the RAS results demonstrates that the magnitude of the RAS signal depends on the degree of azimuthal orientation.

Original languageEnglish
Pages (from-to)446-451
Number of pages6
JournalSurface Science
Volume427-428
DOIs
StatePublished - Jun 1 1999
EventProceedings of the 1998 9th International Conference on Vibrations at Surfaces (VAS9) - Kanagawa-ken, Jpn
Duration: Oct 12 1998Oct 16 1998

ASJC Scopus Subject Areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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