Browsing by Author "Tsai, Peter"

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    Adsorption and polymerization of acetylene on oxide surfaces. A Raman study
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (09-12), 1978) Heaviside, John; Hendra, Patrick J.; Tsai, Peter; Cooney, Ralph P.
    Laser Raman spectra have been recorded of adsorbed poly(acetylene) formed by the polymerization of acetylene on γ-alumina and zeolite KX. Spectral evidence indicates that on both γ-alumina and zeolite KX monomeric acetylene is physisorbed via its π electron system in a “side-on” orientation. The chain length of the polyene chains formed on γ-alumina appear to increase with increasing activation temperature. The line intensities in the Raman spectra of the coloured polyenes are significantly enhanced by resonance effects.