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Synthesis of Luminescence Host Molecules Based on Curved Molecules Having Multiple Phosphorus Atoms

Research Project

Project/Area Number 16K05684
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Organic chemistry
Research InstitutionToyama Prefectural University (2017-2018)
University of Tsukuba (2016)

Principal Investigator

Yamamura Masaki  富山県立大学, 工学部, 准教授 (40524426)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsリン原子 / 蛍光 / 励起状態ダイナミクス / 有機典型元素化合物 / 分子認識 / 発光 / ホストゲスト化学 / 共役系 / 曲面分子
Outline of Final Research Achievements

We reported syn- and anti-isomers of curved molecules having two phosphorus atoms. These isomers show similar electronic structures in group state. On the other hand, the excited-state properties of these isomer are very different: the fluorescence of the syn-isomer was observed in longer-wavelength region by 50 nm than that of the anti-isomer. The syn-isomer showed much higher fluorescence quantum yield and smaller intersystem crossing efficiency than the anti-isomer. The difference in excited-state dynamics should be due to the σ-π conjugation in LUMO of the isomers.

Academic Significance and Societal Importance of the Research Achievements

リン原子をπ共役系に組み込むことで様々な発光有機材料が開発されてきた。その多くは、リン原子とπ共役系とが効果的に共役するためか、剛直な構造を持ったものであった。本研究で用いた屈曲型分子は適度な柔軟性を有するため、光励起により構造変化を起こし、それが蛍光特性の変化として観測された。このような分子は、様々な外部の刺激に応答して蛍光変化を示すセンサーとしての応用が期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (12 results)

All 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (8 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Efficient Synthetic Method for Organometallic Radicals: Structures and Properties of Gold(I)-(nitronyl nitroxide)-2-ide Complexes2017

    • Author(s)
      S. Suzuki, S. Kira, M. Kozaki, M. Yamamura, T. Hasegawa, T. Nabeshima, K. Okada
    • Journal Title

      Dalton Trans.

      Volume: 46 Issue: 8 Pages: 2653-2659

    • DOI

      10.1039/c6dt04685a

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stable Neutral Radicals of Planar N2O2-Type Dipyrrin Platinum Complexes: Hybrid Radicals of The Delocalized Organic π-Orbital and Platinum d-Orbital2016

    • Author(s)
      M. Yamamura, H. Takizawa, Y. Gobo, T. Nabeshima
    • Journal Title

      Dalton Trans.

      Volume: 45 Issue: 16 Pages: 6834-6838

    • DOI

      10.1039/c5dt05039a

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] "Synthesis of Phosphorus-Centered and Chalcogen-Bridged Concave Molecules: Modulation of Bowl Geometries and Packing Structures by Changing Bridging Atoms”2016

    • Author(s)
      M. Yamamura, T. Hasegawa, and T. Nabeshima
    • Journal Title

      Org. Lett.

      Volume: 18 Issue: 4 Pages: 816-819

    • DOI

      10.1021/acs.orglett.6b00105

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Chiroptical switching caused by crystalline/liquid crystalline phase transition of a chiral bowl-shaped molecule2016

    • Author(s)
      Masaki Yamamura, Kimiya Sukegawa, Daichi Okada, Yohei Yamamoto, Tatsuya Nabeshima
    • Journal Title

      Chem. Commun.

      Volume: 52 Issue: 24 Pages: 4585-4588

    • DOI

      10.1039/c6cc00995f

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 蛍光部位を有するキラルなホスファングレンの合成と性質2017

    • Author(s)
      任和, 助川公哉, 山村正樹, 鍋島達弥
    • Organizer
      日本化学会第97春季年会
    • Place of Presentation
      慶応大学日吉キャンパス(神奈川県横浜市)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
  • [Presentation] 2つのリン原子を有する曲面状分子の合成と性質2017

    • Author(s)
      佃真之介, 本郷大悟, 山村正樹, 鍋島達弥
    • Organizer
      日本化学会第97春季年会
    • Place of Presentation
      慶応大学日吉キャンパス(神奈川県横浜市)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
  • [Presentation] おわん型分子のC-S結合切断を利用したヘリセン型分子の合成2017

    • Author(s)
      檜森宗, 山村正樹, 鍋島達弥
    • Organizer
      日本化学会第97春季年会
    • Place of Presentation
      慶応大学日吉キャンパス(神奈川県横浜市)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
  • [Presentation] 16族元素で架橋したキラルなホスファングレンの合成と性質2016

    • Author(s)
      長谷川徹, 山村正樹, 鍋島達弥
    • Organizer
      第43回典型元素化学討論会
    • Place of Presentation
      仙台市民会館(宮城県仙台市)
    • Year and Date
      2016-12-08
    • Related Report
      2016 Research-status Report
  • [Presentation] 2つのリン原子を有する屈曲型分子の励起状態ダイナミクス2016

    • Author(s)
      山村正樹, 本郷大悟, 酒井隼人, 羽曾部卓, 鍋島達弥
    • Organizer
      第43回典型元素化学討論会
    • Place of Presentation
      仙台市民会館(宮城県仙台市)
    • Year and Date
      2016-12-08
    • Related Report
      2016 Research-status Report
  • [Presentation] Supramolecuar Formation of Curved Host Molecules and Guest Fullerene2016

    • Author(s)
      Masaki Yamamura, Tatsuya Nabeshima
    • Organizer
      The 6th Annual World Congress of Nano Science and Technology-2016
    • Place of Presentation
      Holiday Inn Singapore Atrium, Singapore
    • Year and Date
      2016-10-26
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] リン原子を中心にもち16族元素を架橋部位とするお椀型分子の構造と反応性2016

    • Author(s)
      長谷川徹, 山村正樹, 鍋島達弥
    • Organizer
      第27回 基礎有機化学討論会
    • Place of Presentation
      広島国際会議場(広島県広島市)
    • Year and Date
      2016-09-01
    • Related Report
      2016 Research-status Report
  • [Presentation] キラルお椀型分子の液晶相におけるキラル特性2016

    • Author(s)
      山村正樹, 助川公哉, 岡田大地, 山本洋平, 鍋島達弥
    • Organizer
      第27回 基礎有機化学討論会
    • Place of Presentation
      広島国際会議場(広島県広島市)
    • Year and Date
      2016-09-01
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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