A photoelectron spectroscopy study of the charge-induced π-electronic structural changes in α.ω.-diphenyltetradecaheptaene, a model molecule for polyacetylene

M. Lögdlund*, P. Dannetun, S. Stafström, W. R. Salaneck, C. Fredriksson, Jean-Luc Bredas, M. G. Ramsey, C. W. Spangler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The π-electronic structural changes in diphenylpolyene, α,ω-di[henyltetradecaheptaene, or DP7, have been studied upon gradually doping with sodium Xu using X-ray and Ultraviolet Photoelectron Spectroscopy, XPS and UPS. The spectra are interpreted with the help of the results from Austin Model 1 (AM1) and Valence Effective Hamiltonian (VEH) quantum chemical calculations. The results of the doping with sodium can be discussed in terms of two confined solitons on the polyene part of the molecule, which results in two new energy levels in the originally forbidden energy gap.

Original languageEnglish (US)
Pages (from-to)4722-4727
Number of pages6
JournalSynthetic Metals
Volume57
Issue number2-3
DOIs
StatePublished - Apr 19 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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