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Original scientific paper

On the Electron Phonon Interaction in Trans Polyacetylene

Giavanna Dellepiane ; Istituto di Chimica Industriale, Universita, Corso Europa n. 30, 16132 Genova (Italy)
Riccardo Tubino ; Istituto Chimica Macromolecole, C.N.R., Via Bassini 15, 20133 Milano (Italy)
Carla Cuniberti ; Istituto di Chimica Industriale, Universita, Corso Europa n. 30, 16132 Genova (Italy)


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page 347-356

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Abstract

The effect of 1t conducting electrons on the lattice dynamics
and on the Resonant Raman cross section in the simplest semiconducting
polymer, trans polyacetylene, is discussed. Using the.
tight binding approximation and disregarding the electron correlation,
explicit expressions for both delocalized force constants and
Franck-Condon factors have been worked out as a function of the
electron-phonon coupling constant. Phonon frequencies and relative Resonance Raman intensities for the Raman active modes have been calculated and compared with the available experimental data for both trans (CH), and (CD),.

Keywords

Hrčak ID:

175909

URI

https://hrcak.srce.hr/175909

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