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開殻分子系からなる非線形光学材料の量子化学的設計

Research Project

Project/Area Number 11F01335
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Physical chemistry
Research InstitutionOsaka University

Principal Investigator

中野 雅由  大阪大学, 基礎工学研究科, 教授

Co-Investigator(Kenkyū-buntansha) SHABBIR Muhammad  大阪大学, 基礎工学研究科, 外国人特別研究員
SHABBIR Muhammad  大阪大学, 大学院・基礎工学研究科, 外国人特別研究員
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2013: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2012: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2011: ¥700,000 (Direct Cost: ¥700,000)
Keywords開殻系 / ジラジカル / 非線形光学 / 超分極率 / 密度汎関数法 / フラーレン / 対称性 / デカボラン / アセン / シクロアセン / フェニレン
Research Abstract

本年度は、炭素以外の元素を含む有機-無機ハイブリッド系について対象とし、量子化学の理論と計算に基づいて大きな超分極率を有する機能性分子の設計に取り組んだ。ここではホウ素原子からなる籠型形状をもったデカボラン(B_<10>H_<14>)とその誘導体(閉殻系)の三次NLO応答について、DFT計算に基づく理論解析を行った。実験的にも可能な誘導体として、デカボランの6,9位を置換した分子を設計した。この系はV字型形状を有しており、そのため超分極率テンソルの対角成分だけでなく非対角成分も大きくなると考えられる。これにより、異方性の大きなNLO特性を示すと期待され、従来のdonor-π-acceptor (D-π-A)型のNLO分子に比べて実際の応用的側面からも利点がある。
6,9位に結合した水素を窒素原子に置換することで、6,9位のホウ素の空のp軌道に孤立電子からの電子供与が起こる。この電子構造の変化により、V字のアーム部分の成す角が変化した構造に変化する。この構造変化に起因して、NLO特性の異方性がさらに増大することが明らかになった。このような種々の元素の電子構造の違いを利用し、母骨格と置換基の組み合わせにより電子・幾何構造を変化させ、NLO物性の異方性を制御する試みは、化学、物理を始めとする広範な物質科学の研究者に対して大きなインパクトを与えると期待される。この研究についての結果は無機化学分野のトップレベル学術誌であるDalton Transactionsに投稿し公表した。
また、研究期間内に取り組んできたフラーレン系を含む開殻カーボンナノマテリアル系の非線形光学特性に関する研究内容を取りまとめ、著書として共著で執筆した(CRC Press)。

Strategy for Future Research Activity

(抄録なし)

Report

(3 results)
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (16 results)

All 2013 2012 2011 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (7 results) Book (1 results) Remarks (3 results)

  • [Journal Article] New Type of Organic-Inorganic Hybrid NLO-Phores with Large Off-Diagonal First Hyperpolarizability Tensors : A Two-Dimensional Approach2013

    • Author(s)
      Muhammad Shabbir, Hongliang Xu, Zhong-Min Su, Kotaro Fukuda, Ryohei Kishi, Yasuteru Shigeta and Masayoshi Nakano
    • Journal Title

      Dalton Trans.

      Volume: 42 Issue: 42 Pages: 15053-15062

    • DOI

      10.1039/c3dt51331a

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interplay between the Diradical Character and Third-Order Nonlinear Optical Properties in Fullerene Systems雑 誌 名2013

    • Author(s)
      Shabbir Muhammad
    • Journal Title

      Chem. Eur. J.

      Volume: 19 Issue: 5 Pages: 1677-1685

    • DOI

      10.1002/chem.201203463

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparative Study of Diradical Characters and Third-Order Nonlinear Optical Properties of Linear/Cyclic Acenes Versus Phenylenes2012

    • Author(s)
      S.Muhammad, T.Minami, et al
    • Journal Title

      International Journal of Quantum Chemistry

      Volume: (in press) Issue: 4 Pages: 592-598

    • DOI

      10.1002/qua.24032

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diradicalology in Third-Order Nonlinear Optical Systems : Second Hyperpolarizabilities of Acetylene-Linked Phenalenyl-Based Superpolyenes2012

    • Author(s)
      Masayoshi Nakano, Hitoshi Fukui
    • Journal Title

      Int.J.Quantum Chem.

      Volume: (in press) Issue: 4 Pages: 585-591

    • DOI

      10.1002/qua.24035

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hallde Ion Complexes of Decaborane (B10H14) and Their Derivatives : Noncovalent Charge Transfer Effect on Second-Order Nonlinear Optical Properties2012

    • Author(s)
      S.Muhammad, T.Minami, et al
    • Journal Title

      Journal of Physical Chemistry A

      Volume: 116 Issue: 5 Pages: 1417-1424

    • DOI

      10.1021/jp209385b

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] Second-Order Nonlinear Optical Properties of Asymmetric Open-Shell Singlet π-Conjugated Molecular Systems2013

    • Author(s)
      Masayoshi Nakano, Ryohei Kishi, Kotaro Fukuda, Hiroshi Matsui, Kyohei Yoneda, Shabbir Muhammad, Yasuteru Shigeta, Benoit Champagne
    • Organizer
      11th International Symposium on Functional π-Electron Systems (F-π-11)
    • Place of Presentation
      Palais des Congres (Arcachon, Aquitaine, France)
    • Year and Date
      2013-06-02
    • Related Report
      2013 Annual Research Report
  • [Presentation] Diradical Character and Nonlinear Optical Properties of Bucky ferrocenes with Conjugated π-Electron and Metal-Metal Spin Correlation2013

    • Author(s)
      Shabbir Muhammad, Masayoshi Nakano
    • Organizer
      11th International Symposium on Functional π-Electron Systems (F-π-11)
    • Place of Presentation
      Palais des Congres (Arcachon, Aquitaine, France)
    • Year and Date
      2013-06-02
    • Related Report
      2013 Annual Research Report
  • [Presentation] Interplay between Diradical characters and Third-Order Nonlinear Optical Properties in Fullerenes Systems2013

    • Author(s)
      Shabbir Muhammad
    • Organizer
      The 53^rd Sanibel Symposium
    • Place of Presentation
      St. Simons Island, Georgia (USA)
    • Year and Date
      2013-02-21
    • Related Report
      2012 Annual Research Report
  • [Presentation] Interplay between dirtdical characters and third-order nonlinear opticalproperties in fullerenes systems2012

    • Author(s)
      Shabbir Muhammad
    • Organizer
      Conference on Computational Physics (CCP2012)
    • Place of Presentation
      ニチイ学館・神戸ポートアイランドセンター(兵庫県)
    • Year and Date
      2012-10-15
    • Related Report
      2012 Annual Research Report
  • [Presentation] An interplay between diradical character and nonlinear optical properties in fullerenes and their bucky betallocenes2012

    • Author(s)
      Shabbir Muhammad
    • Organizer
      International Conference on Science and Technology of Synthetic Metals (ICSM2012)
    • Place of Presentation
      Hyeyatt Regency hotel, Atlanta (USA)
    • Year and Date
      2012-07-10
    • Related Report
      2012 Annual Research Report
  • [Presentation] Comparative Study of Diradical Characters and Third-Order Nonlinear Optical Properties of Linear/Cyclic Acenes versus Phenylenes2012

    • Author(s)
      Shabbir Muhammad
    • Organizer
      第9回京都大学福井謙一記念研究センターシンポジウム
    • Place of Presentation
      京都大学福井謙一記念研究センター
    • Year and Date
      2012-01-06
    • Related Report
      2011 Annual Research Report
  • [Presentation] Probing the multiradical character and nonlinear optical properties of linear and cyclic polyacenes : A wrapping effect in open-shell polyacenes2011

    • Author(s)
      Shabbir Muhammad
    • Organizer
      ISTCP-VII
    • Place of Presentation
      早稲田大学
    • Year and Date
      2011-09-03
    • Related Report
      2011 Annual Research Report
  • [Book] Nanoscience and Computational Chemistry : Research Progress (Eds. Andrew G. Mercader, Eduardo A. Castro, A. K. Haghi)2013

    • Author(s)
      Shabbir MUHAMMAD, Masayoshi NAKANO
    • Total Pages
      488
    • Publisher
      CRC Press
    • Related Report
      2013 Annual Research Report
  • [Remarks] 中野研究室HP

    • URL

      http://www.cheng.es.osaka-u.ac.jp/nakano/index.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] CCP受賞

    • URL

      http://www.cheng.es.osaka-u.ac.jp/nakano/topics/704.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] Sanibel受賞

    • URL

      http://www.cheng.es.osaka-u.ac.jp/nakano/topics/790.html

    • Related Report
      2012 Annual Research Report

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Published: 2011-12-22   Modified: 2024-03-26  

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