Development of Chiral Dopants for Chiral Nematic Induction Based on Hierarchical Chirality Transfer

• Project/Area Number: 18550175
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Organic industrial materials
• Research Institution: Osaka Prefecture University
• Principal Investigator: SHIGEYUKI Yagi Osaka Prefecture University, 大学院・工学研究科, 准教授 (40275277)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,790,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2006: ¥2,100,000 (Direct Cost: ¥2,100,000)
• Keywords: 液晶 / キラルネマティック相 / 超分子化学 / キラル添加剤 / らせん不斉 / 不斉誘起

Research Abstract

非環状テトラピロール系亜鉛錯体(亜鉛ビリノン)のらせん構造に基づく不斉(ヘリシティー)を利用して、新規な液晶用キラル添加剤を開発した。光学活性基の導入や分子間相互作用によってヘリシティーの制御された亜鉛ビリノンおよびその集積体をネマティック液晶にドープしたところ、極めて効率的にキラルネマティック相が誘起された。すなわち、キラル補助基から亜鉛ビリノンのヘリシティー、さらには液晶の不斉へと構造の掌性が階層的に伝搬することを利用して、高効率な液晶用キラル添加剤を創出することに成功した。

Research Products

• [Journal Article] Novel Freebase and Zinc Bilinone Dimers with Optically Active Peripheral Groups. Synthesis and Application to Chiral Nematic Induction in a Nematic Mesophase (2009)
  • Author(s): Shigeyuki Yagi, 他3名
  • Journal Title: Research on Chemical Intermediates 35(掲載決定)
  • Peer Reviewed
• [Journal Article] Homohelicty-Enriched Zinc Bilinone Dimers with Chiral Aliphatic Spacers (2008)
  • Author(s): S. Yagi, K. Hamakubo, S. Ikawa, H. Nakazumi, T. Mizutani
  • Journal Title: Synthesis and Application to Chiral Induction of a Nematic Liquid Crystal Tetrahedron 64 (46) Pages: 10598-10604
  • Peer Reviewed
• [Journal Article] Homohelicty-Enriched Zinc Bilinone Dimers with Chiral Aliphatic spacers. Synthesis and Application to Chiral Induction of a Nematic Liquid Crystal (2008)
  • Author(s): Shigeyuki Yagi, 他4名
  • Journal Title: Tetrahedron 64 Pages: 10598-10604
  • Peer Reviewed
• [Journal Article] Novel Freebase and Zinc Bilinone Dimers with Optically Active Peripheral Groups. Synthesis and Application to Chiral Nematic Induction in a Nematic Mesophase Res.
  • Author(s): S. Yagi, T. Matsunaga, K. Hamakubo, H. Nakazumi
  • Journal Title: Chem Intermediates (in press)
  • Peer Reviewed
• [Presentation] らせん型非環状テトラピロール亜鉛錯体による液晶の不斉誘起 (2008)
  • Author(s): 井川茂、八木繁幸、中澄博行、水谷義
  • Organizer: 日本化学会第88春季年会
  • Place of Presentation: 東京
  • Year and Date: 2008-03-27
• [Presentation] Homohelicity-Enriched Zinc Bilinone Dimers as an Effective Dopant Inducing a Chiral Nematic Liquid Crystalline Phase (2007)
  • Author(s): S. Yagi, S. Ikawa, K. Hamakubo, and H. Nakazumi
  • Organizer: 3rd East Asia Symposium On Functional Dyes and Advanced Materials
  • Place of Presentation: Ulsan, Korea
  • Year and Date: 2007-10-10
• [Presentation] Homohelicity-Enriched Zinc Bilinone Dimers as an Effective Dopant Inducilg a Chiral Nematic Liquid Crystalline Phase (2007)
  • Author(s): S.Yagi, S.Ikawa, K.Hamakubo and H.Nakazumi
  • Organizer: 3rd East Asia Symposium On Functional Dyes And Advanced Materials
  • Place of Presentation: Msan,Korea
  • Year and Date: 2007-10-10
• [Presentation] Homohelicity Induction in Zinc Bilinone Dimers with Chiral Aliphatic Spacer (2006)
  • Author(s): S. Yagi, K. Hamakubo, H. Nakazumi, and T. Mizutani
  • Organizer: The 10th International Kyoto Conference on New Aspects of Organic Chemistry (IKCOC-10)
  • Place of Presentation: Kyoto、Japan
  • Year and Date: 2006-11-16