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Dynamics of the Chirality Conversion of Crystals

Research Project

Project/Area Number 15K05127
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics I
Research InstitutionAichi Institute of Technology (2016-2018)
Nagoya University (2015)

Principal Investigator

UWAHA Makio  愛知工業大学, 基礎教育センター, 教授 (30183213)

Co-Investigator(Kenkyū-buntansha) 勝野 弘康  立命館大学, 理工学部, 助教 (70377927)
Research Collaborator Sato masahide  
Miura hitoshi  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsカイラリティ転換 / カイラル結晶化 / ヴィエドゥマ熟成 / ベッカーデリングモデル / 結晶鏡像体過剰率 / 塩素酸ナトリウム / パターン形成 / ステップ / 準安定状態 / カイラルクラスター
Outline of Final Research Achievements

We discovered the mechanism of the chirality conversion of crystals (and molecules if they are chiral) during periodic change of temperature of a solution with racemic powder crystals. Using a physical atomic model, we demonstrated that crystal growth with chiral clusters causes nonlinear acceleration of growth and realizes a homochiral state by the temperature cycling. We also clarified the origin of the anomalous temporal spread of the crystal size distribution during the chirality conversion by grinding crystals in a saturated solution. In addition, we studied step patterns on a crystal surface under nonequilibrium conditions and explained the mechanism of the comb-like pattern formation during growth.

Academic Significance and Societal Importance of the Research Achievements

溶液中での結晶の粉砕攪拌や温度の周期的な変動によって自由エネルギー的には等価な2状態の一方が他方に変わってしまう現象は物理的に一見あり得ないように見える.しかし系の非平衡性に注意し,カイラルなクラスターが直接結晶の成長に寄与するというごく自然なミクロな過程を認めることによって,粉砕と温度循環という異なる条件下で可能であることを統一的に示せた.逆にこのことは,クラスターによる成長という直接的には観測が難しい過程を間接的に実証したことにもなる.粉砕や温度循環の方法によるホモカイラル状態の実現は,化学工学的には簡便さや経済性から実用化の可能性は大きい.とくに温度循環法はスケールアップも容易である.

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (27 results)

All 2019 2018 2017 2016 2015

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Acknowledgement Compliant: 4 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results)

  • [Journal Article] Anomalous Size Distribution of Chiral Crystals during Deracemization by Grinding2019

    • Author(s)
      Katsuno Hiroyasu、Uwaha Makio
    • Journal Title

      Crystal Growth & Design

      Volume: 19 Issue: 4 Pages: 2428-2433

    • DOI

      10.1021/acs.cgd.9b00095

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 微斜面上での櫛状ステップパターンの形成2018

    • Author(s)
      佐藤正英,三浦均,上羽牧夫
    • Journal Title

      日本結晶成長学会誌

      Volume: 45

    • NAID

      120006722631

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of impurities on chirality conversion by grinding2017

    • Author(s)
      H. Katsuno and M. Uwaha
    • Journal Title

      Phys. Rev. E

      Volume: 95 Issue: 6

    • DOI

      10.1103/physreve.95.062804

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Two mechanisms forming a comblike step pattern induced by a moving linear adatom source2017

    • Author(s)
      Masahide Sato, Hitoshi Miura, and Makio Uwaha
    • Journal Title

      Physical Review E

      Volume: 95 Issue: 3

    • DOI

      10.1103/physreve.95.032803

    • NAID

      120006226515

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Introduction to the BCF theory2016

    • Author(s)
      Makio Uwaha
    • Journal Title

      Progress in Crystal Growth and Characterization of Materials

      Volume: 62 Pages: 58-68

    • Related Report
      2016 Research-status Report
    • Acknowledgement Compliant
  • [Journal Article] Mechanism of Chirality Conversion by Periodic Change of Temperature: Role of Chiral Clusters2016

    • Author(s)
      H. Katsuno and M. Uwaha
    • Journal Title

      Phys. Rev. E

      Volume: 93 Issue: 1 Pages: 013002-013002

    • DOI

      10.1103/physreve.93.013002

    • NAID

      120005690880

    • Related Report
      2016 Research-status Report 2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Relation between the Step Pattern and the Velocity of the Moving Linear Adatom Source2015

    • Author(s)
      K. Kishi, M. Kawaguchi, H. Miura, M. Sato, M. Uwaha
    • Journal Title

      e-J. Surf. Sci. Nanotech.

      Volume: 13 Issue: 0 Pages: 269-274

    • DOI

      10.1380/ejssnt.2015.269

    • NAID

      130005074891

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 安定相から準安定相への転換の可能性2019

    • Author(s)
      勝野弘康, 上羽牧夫
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Anomalous size distribution of chiral crystals under ginding2018

    • Author(s)
      Hiroyasu Katsuno, and Makio Uwaha,
    • Organizer
      6th European Conference on Crystal Growth
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Amplification of crystal enantiomeric excess with crystallization of chiral clusters2018

    • Author(s)
      Hiroyasu Katsuno, and Makio Uwaha
    • Organizer
      6th European Conference on Crystal Growth
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Light Scattering Study on Sodium Chlorate2018

    • Author(s)
      E. Oishi, Y. Fujii, A. Koreeda, H. Katsuno and T. Nakada
    • Organizer
      Meeting on Ferroelectric Materials and Their Applications
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 結晶粉砕下でのカイラリティ転換実験における結晶サイズ分布異常2018

    • Author(s)
      勝野弘康, 上羽牧夫
    • Organizer
      第47回結晶成長国内会議(日本結晶成長学会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 結晶粉砕実験における鏡像体過剰率と結晶サイズ分布II2018

    • Author(s)
      勝野弘康, 上羽牧夫
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] カイラリティ転換における結晶結晶粉砕方法と結晶サイズ分布2018

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 塩素酸ナトリウムのラマン・ブリルアン散乱分光2018

    • Author(s)
      大石栄一, 藤井康裕, 是枝聡肇, 勝野弘康, 中田俊隆
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 粉砕による結晶カイラリティ転換における不純物効果III2017

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      日本物理学会72回年次大会
    • Place of Presentation
      大阪大学(豊中)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
  • [Presentation] 「ステップは生きている」:ステップの動的挙動に関する理論的研究2017

    • Author(s)
      上羽牧夫
    • Organizer
      第46回結晶成長国内会議(日本結晶成長学会)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] カイラル結晶の鏡像体過剰率増幅と結晶サイズ分布2017

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      第46回結晶成長国内会議(日本結晶成長学会)
    • Related Report
      2017 Research-status Report
  • [Presentation] 結晶粉砕実験における鏡像体過剰率と結晶サイズ分布2017

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 温度循環による結晶カイラリティ転換機構2016

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      第45回結晶成長国内会議(日本結晶成長学会)
    • Place of Presentation
      札幌市
    • Year and Date
      2016-10-19
    • Related Report
      2015 Research-status Report
  • [Presentation] 粉砕による結晶カイラリティ転換における不純物効果II2016

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] Role of chiral clusters in the chirality conversion by temperature cycling2016

    • Author(s)
      H. Katsuno (oral), M. Uwaha
    • Organizer
      The 18th International Conference on Crystal Growth and Epitaxy
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2016-08-09
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Relation between the period of protrusions in a comb-like step pattern and the velocity of adatom source moving in front of the step2016

    • Author(s)
      M. Sato (oral), M. Uwaha
    • Organizer
      The 18th International Conference on Crystal Growth and Epitaxy
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2016-08-09
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of chiral impurities on the chirality conversion by grinding2016

    • Author(s)
      H. Katsuno (oral), M. Uwaha
    • Organizer
      The 18th International Conference on Crystal Growth and Epitaxy
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2016-08-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 粉砕による結晶カイラリティ転換における不純物効果2016

    • Author(s)
      勝野弘康,上羽牧夫
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      仙台市
    • Year and Date
      2016-03-21
    • Related Report
      2015 Research-status Report
  • [Presentation] 移動速度の異なる粒子供給源での2つの同一周期櫛状パターンの形成機構2016

    • Author(s)
      佐藤正英,上羽牧夫,三浦均
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      仙台市
    • Year and Date
      2016-03-21
    • Related Report
      2015 Research-status Report
  • [Presentation] Study of Growth Modes with Dislocations in Heteroepitaxy by an Elastic Lattice Model2015

    • Author(s)
      H. Katsuno, M. Uwaha and Y. Saito (talk given by HK)
    • Organizer
      5th International Workshop on Epitaxial Growth and Fundamental Properties of Semiconductor Nanostructures
    • Place of Presentation
      Hsinchu(Taiwan)
    • Year and Date
      2015-09-10
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2020-05-15  

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