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Pz-Radical Electron Structure in Polydiacetylene (PDA) Molecules

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Electronic Properties of Conjugated Polymers

Part of the book series: Springer Series in Solid-State Sciences ((SSSOL,volume 76))

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Abstract

By ESR spectroscopy it is shown that the transient absorption and the delayed luminescence observed in PDA single crystals is due to a metastable triplet state of the individual conjugated chains. This triplet state is described by a configuration model in analogy to the ground-state carbene reaction intermediates of the solid-state polymerization reaction. ESR fine structure and hyperfine structure data are consistent with a transfer integral of t = − 1.1 eV and an energy difference of 2ɛ = 0.4 eV between buta-triene and acetylene structure per unit cell.

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References

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Author information

Authors and Affiliations

  1. 3. Physikalisches Institut der Universität Stuttgart, Pfaffenwaldring 57, D-7000, Stuttgart 80, Fed.Rep.of Germany

    C. KoUmar

  2. Hoechst AG, Angewandte Physik, 6230, Frankfurt am Main 80, West Germany

    H. Sixl

Authors
  1. H. Sixl
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  2. C. KoUmar
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Editor information

Editors and Affiliations

  1. Institut für Festkörperphysik, Universität Wien, Strudlhofgasse 4, A-1090, Wien, Austria

    Hans Kuzmany

  2. Ludwig Boltzmann Institut für Festkörperphysik, Wien, Kopernikusgasse 15, A-1090, Wien, Austria

    Hans Kuzmany

  3. Physikalisches Institut II, Universität Stuttgart, Pfaffenwaldring 57, D-7000, Stuttgart 80, Fed. Rep. of Germany

    Michael Mehring

  4. Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-7000, Stuttgart 80, Fed. Rep. of Germany

    Siegmar Roth

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© 1987 Springer-Verlag Berlin Heidelberg

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Sixl, H., KoUmar, C. (1987). Pz-Radical Electron Structure in Polydiacetylene (PDA) Molecules. In: Kuzmany, H., Mehring, M., Roth, S. (eds) Electronic Properties of Conjugated Polymers. Springer Series in Solid-State Sciences, vol 76. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83284-0_32

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  • DOI: https://doi.org/10.1007/978-3-642-83284-0_32

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-83286-4

  • Online ISBN: 978-3-642-83284-0

  • eBook Packages: Springer Book Archive

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