A Perfect Match: Fullerene Guests in Star‐Shaped Oligophenylenevinylene Mesogens |
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| Authors: | Prof. Dr. Matthias Lehmann Markus Hügel |
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| Affiliation: | Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg (Germany) |
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| Abstract: | Star‐shaped oligophenylenevinylene (OPV) mesogens are shape‐persistent and possess formally large void space. A mesogen with three styrene repeating units packs densely in a columnar helical arrangement. Attachment of one fullerene through a short spacer results in an exceptional increase of the mesophase stability. X‐ray scattering and modeling evidence a triple‐helical arrangement in which the fullerene perfectly fills the void space between the arms of the star mesogen. |
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| Keywords: | columnar phases donor– acceptor systems fullerenes helical packing liquid crystals |
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