2013 Fiscal Year Final Research Report
Intensive Investigation of Phase Behaviors of Discotic Liquid Crystals with an Unprecedented 3D Structure
| Project/Area Number |
24655118
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Functional materials chemistry
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SHOJI Yoshiaki 東京工業大学, 資源化学研究所, 助教 (40525573)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 液晶 / キュービック相 / トリフェニレン / イミダゾリウムイオン / 自己集合 |
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| Research Abstract |
Based on our original finding that hexaalkoxytriphenylene derivatives, carrying imidazolium ion-terminated paraffinic side chains, generate a unique bicontinuous cubic mesophase, the present research aimed to elucidate the structural aspects of this new class of liquid crystalline (LC) materials. After many trials, we found that the use of triphenylene hexacarboxylic ester, in place of a hexaalkoxytriphenylene core, leads to the formation of a monodomain cubic mesophase. This finding allowed us to unveil the electron density map of the LC material. Indeed, the resultant structure is unprecedented and is characterized by a hybrid structure of gyroid and ring domains, consisting of assemblies of the imidazolium-ion pendants.
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Research Products
(14 results)
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[Journal Article] Amphiphilic Design of a Discotic Liquid-Crystalline Molecule for Dipole Manipulation : Hierarchical Columnar Assemblies with a 2D Superlattice Structure2013
Author(s)
Ming-Che Yeh, Yu-Lou Su, Mei-Chun Tzeng, Chi Wi Ong, Takashi Kajitani, Hideo Enozawa, Masaki Takata, Yoshiko Koizumi, Akinori Saeki, Shu Seki, Takanori Fukushima
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Journal Title
Angew. Chem. Int. Ed.
Volume: 52
Pages: 1031–1034
DOI
Peer Reviewed
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[Journal Article] Wide-Range 2D Lattice Correlation Unveiled for Columnarly Assembled Triphenylene Hexacarboxylic Esters2012
Author(s)
Terutsune Osawa, Takashi Kajitani, Daisuke Hashizume, Hiroyuki Ohsumi, Sono Sasaki, Masaki Takata, Yoshiko Koizumi, Akinori Saeki, Shu Seki, Takanori Fukushima, Takuzo Aida
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Journal Title
Angew. Chem. Int. Ed.
Volume: 51
Pages: 7990–7993
DOI
Peer Reviewed
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