Helical growth of semiconducting columnar dye assemblies based on chiral perylene bisimides |
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Authors: | Dehm Volker Chen Zhijian Baumeister Ute Prins Paulette Siebbeles Laurens D A Würthner Frank |
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Affiliation: | Institut für Organische Chemie and R?ntgen Research Center for Complex Material Systems, Universit?t Würzburg, Am Hubland, 97074 Würzburg, Germany. |
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Abstract: | A perylene bisimide derivative bearing two phenyl substituents with chiral solubilizing alkyl chains at the imide N atoms has been synthesized, and its self-assembly properties in solution and condensed phase have been investigated. Temperature-dependent CD spectra revealed the coexistence of two different kinds of chiral aggregates, differing in size and handedness. The chiral side chains effect a higher order within the self-assemblies, resulting in an increased charge-carrier mobility in the columnar liquid crystalline mesophase. [structure: see text] |
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