Advanced Materials

Towards a planar, double-stranded polymer


  • We are grateful to Prof. G. Wegner, Mainz, for his interest in this work, to N. Egger for recording the CPMAS spectra and to the Bundesministerium für Forschung und Technologie for financial support. AG acknowledges a fellowhip (Kekule) from the Fonds der Chemischen Industrie.


Communication: Unsaturated ladder polymers consisting of a perfect sequence of all-carbon six-membered rings (polycatafusenes) are predicted to exhibit intrinsic electrical conductivity and high optical nonlinearity. One step towards this goal, the chemically induced unfolding of a coiled ladder polymer (see Figure), where the geometries of the carbons marked “B” regulates the overall structure, is reported.

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