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Surface vibrations and the nature of the adsorption state: C2H2 on Pt(111) (1977)

Ibach, H. ; Hopster, H. ; Sexton, B.

Springer

Applied physics 14 (1977), S. 21-24

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ISSN: 1432-0630

Keywords: 68.20−s ; 68.30+z ; 82.65Jv

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: Abstract Molecular vibrations of C2H2 and C2D2 adsorbed on Pt(111) at 140 K and ∼300K have been measured by high resolution electron energy loss spectroscopy. The comparison of C2H2 and C2D2 spectra allows an unambiguous assignment of the observed losses to the excitation of C−H bending, C−H stretching, and C−C stretching modes of nondissociatively adsorbed acetylene. From the relative intensities of losses the hybridisation state is determined to be nearsp 2. The C−C stretching frequency indicates a C−C bond order of ∼1.8.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00882628

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