title: A planarized triphenylborane mesogen: discotic liquid crystals with ambipolar charge-carrier transport properties.
abstract: 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 Å 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 3×10(-5)  cm(2)  V(-1)  s(-1), respectively.
authors.affiliation: Department of Chemistry, Graduate School of Science and Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602 (Japan).
authors.forename: Tomokatsu
authors.initials: T
authors.lastname: Kushida
authors.affiliation: Department of Chemistry, Graduate School of Science and Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602 (Japan).
authors.forename: Ayumi
authors.initials: A
authors.lastname: Shuto
authors.affiliation: Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan). yoshio@chembio.t.u-tokyo.ac.jp.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Yoshio
authors.affiliation: Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan).
authors.forename: Takashi
authors.initials: T
authors.lastname: Kato
authors.affiliation: Department of Chemistry, Graduate School of Science and Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8602 (Japan). yamaguchi@chem.nagoya-u.ac.jp.
authors.forename: Shigehiro
authors.initials: S
authors.lastname: Yamaguchi
mesh_terms: D001880:Boranes / Q000138:chemical synthesis / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry*; D015394:Molecular Structure; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D001880:Boranes
keywords: boron; charge carrier transport; liquid crystals; stacking interactions; x-ray diffraction