4.8 Article

A Planarized Triphenylborane Mesogen: Discotic Liquid Crystals with Ambipolar Charge-Carrier Transport Properties

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 23, Pages 6922-6925

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201502678

Keywords

boron; charge carrier transport; liquid crystals; stacking interactions; x-ray diffraction

Funding

  1. CREST, JST
  2. Ministry of Education, Culture, Sports, Science, and Technology of Japan [24109007, 25109513]
  3. Grants-in-Aid for Scientific Research [24109007, 25109513] Funding Source: KAKEN

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A discotic liquid-crystalline (LC) material, consisting of a planarized triphenylborane mesogen, was synthesized. X-ray diffraction analysis confirmed that this compound forms a hexagonal columnar LC phase with an interfacial distance of 3.57 angstrom between the discs. At ambient temperature, this boron-centered discotic liquid crystal exhibited ambipolar carrier transport properties with electron and hole mobility values of approximately 10(-3) and 3x10(-5)cm(2)V(-1)s(-1), respectively.

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