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Ryusei OKETANI
桶谷 龍成
Ryusei OKETANI
桶谷 龍成
Institutional repository
Graduate School of Engineering Science　Department of Materials Engineering Science，Assistant Professor

keyword X-ray crystallography，High pressure，Crystal growth，Image recognition，Light-matter interaction，Phase diagram，Crystallization，Organic crystal，Chirality

Institutional repository

Research History 8

  1. 2021/02 - Present
    The University of Osaka　Graduate School of Engineering Science　Assistant Professor

  2. 2020/02 - 2021/01
    Université Libre de Bruxelles (ULB), Faculté des Sciences　Laboratoire de Chimie des Polymères (Prof. Yves Geerts)　Postdoctoral researcher

  3. 2016/04 - 2020/03
    京都大学大学院　人間・環境学研究科 相関環境学専攻　博士課程

  4. 2017/01 - 2019/12
    Université de Rouen Normandie, UFR Sciences et Techniques

  5. 2019/04 - 2019/05
    Merck KGaA　Central process reseach group (Darmstadt)　External PhD student

  6. 2018/10 - 2018/11
    Radboud Univeristy Nijmegen　Solid State Chemistry group (Prof. Elias VLIEG)　Visiting student

  7. 2017/10 - 2017/11
    ETH Zurich. Institute of Process Engineering　Separation Processes Laboratory (Prof. Marco Mazzotti)　Academic guest

  8. 2015/01 - 2015/02
    産業技術総合研究所　機能材料コンピュテーショナルデザイン研究センター 多階層分子シミュレーション手法開発チーム（都築誠二 博士）　技術研修生

Education 3

  1. Université de Rouen Normandie　UFR Sciences et Techniques

    2017/01 - 2019/12

  2. 京都大学大学院　人間・環境学研究科 修士課程　相関環境学専攻

    2014/04 - 2016/03

  3. 大阪府立大学工業高等専門学校専攻科　総合工学システム専攻

    2012/04 - 2014/03

Committee Memberships 1

  1. The Crystallographic Society of Japan　Editoral committee member

    2024/04 - Present

Professional Memberships 6

  1. The Japan Society of Applied Physics

  2. Crystallographic Society of Japan

  3. Japanese Association for Crystal Growth

  4. The Society of Chemical Engineers, Japan

  5. The Chemical Society of Japan

  6. 日本化学会 有機結晶部会

Research Areas 5

  1. Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Chemical reaction and process system engineering /

  2. Nanotechnology/Materials / Functional solid-state chemistry /

  3. Nanotechnology/Materials / Basic physical chemistry /

  4. Nanotechnology/Materials / Structural/physical organic chemistry /

  5. Nanotechnology/Materials / Crystal engineering /

Awards 15

  1. JACG Young Researcher Award

    2023/12

  2. AsCA Rising Star Award

    AsCA2022　2022/11

  3. Crystal Growth and Design Emerging Investigators 2022

    American Chemical Society　2022/01

  4. Best poster award

    2024/07

  5. Seal of excellence of Marie Skłodowska-Curie actions

    European Commission　2020/04

  6. Chemistry of Materials Best Poster Prize

    The 24th International Conference on the Chemistry of the Organic Solid State (ICCOSS2019)　2019/06

  7. 優秀ポスター賞

    Symposium on Molecular Chirality 2018　2018/05

  8. Outstanding Poster Presentation Award

    The 22nd International Conference on the Chemistry of the Organic Solid State (ICCOSS 2015)　2015/06

  9. 第23回有機結晶シンポジウム 最優秀ポスター賞

    日本化学会・有機結晶部会　2014/09

  10. 2013年度優秀学生顕彰 大賞

    日本学生支援機構　2013/12

  11. 第19回日本高専学会 優秀ポスター賞

    日本高専学会　2013/08

  12. 第32回数理科学講演会 最優秀発表賞

    数理科学会　2013/08

  13. 地域交流メッセ 最優秀ポスター賞

    大阪府立大学高専　2013/03

  14. 第18回日本高専学会 最優秀ポスター賞

    日本高専学会　2012/08

  15. 第14回日本化学会近畿支部長賞

    日本化学会　2012/03

Papers 43

  1. Pressure-induced fluorescence enhancement and highly sensitive color change of anthracene-introduced phenacene derivatives in solid state

    Ryusei Oketani, Kaisei Niibori, Hikaru Sotome, Yuki Nakamoto, Naohisa Hirao, Hirokazu Kadobayashi, Ryoya Kamiyama, Ichiro Hisaki

    2025/09/01

  2. Spontaneous chiral symmetry breaking in a single crystal

    Ryusei Oketani, Musashi Okada, Kentaro Takaji, Hajime Shigemitsu, Toshiyuki Kida, Takuya Nakashima, Ichiro Hisaki

    Chemical Science　2025/08/19　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  3. Structural transitions between achiral and chiral crystal structures of planar or axially chiral molecules controlled by light irradiation

    Ryusei Oketani, Musashi Okada, Saki Ikeda, Ken-ichi Yuyama, Takuya Nakashima, Ichiro Hisaki

    Optical Manipulation and Structured Materials Conference 2025　p. 38-38　2025/08/05　Research paper (international conference proceedings)

    Publisher: SPIE

  4. Crystallization-Induced Diastereomeric Transformation of Chiral Ozanimod Key Intermediate Using Homogeneous Ir-Based Racemization Catalyst

    Ryusei Oketani, Koki Shiohara, Ichiro Hisaki

    Crystal Growth & Design　Vol. 24　No. 13　p. 5397-5401　2024/06/11　Research paper (scientific journal)

    Publisher: American Chemical Society (ACS)

  5. Construction of Melting Phase Diagram of Chiral Compounds and Application to Resolution

    Oketani Ryusei, Hisaki Ichiro

    Vol. 51　No. 2　p. 78-84　2024/04/25　Research paper (scientific journal)

  6. Design and Construction of Isoreticular Hydrogen-Bonded Organic Frameworks

    Ichiro Hisaki, Ryusei Oketani

    Advances in Organic Crystal Chemistry　p. 253-272　2025/07/29　Part of collection (book)

    Publisher: Springer Nature Singapore

  7. Layer Sliding‐Induced Fluorescence Changes in a Flexible Hydrogen‐Bonded Organic Framework

    Taito Hashimoto, Mario de la Hoz Tomás, Ryusei Oketani, Boiko Cohen, Abderrazzak Douhal, Ichiro Hisaki

    Chemistry – A European Journal　Vol. 31　No. 46　2025/07/25　Research paper (scientific journal)

    Publisher: Wiley

  8. Desolvation‐Induced Network Reformation and Cracking in the Single Crystals of Hydrogen‐Bonded Frameworks Composed of Tetraazaanthraquinone and Anthraquinone Derivatives

    Haruka Kubo, Ryusei Oketani, Ichiro Hisaki

    Angewandte Chemie International Edition　Vol. 64　No. 33　2025/06/23　Research paper (scientific journal)

    Publisher: Wiley

  9. Formation of a hydrogen-bonded 63-network composed of 1,2,3-tris(4-carboxyphenyl)benzene

    Takuto Fujii, Kentaro Takaji, Kazuki Shiga, Ryusei Oketani, Hajime Shigemitsu, Toshiyuki Kida, Norimitsu Tohnai, Ichiro Hisaki

    Chemistry Letters　Vol. 54　No. 6　2025/05/24　Research paper (scientific journal)

    Publisher: Oxford University Press (OUP)

  10. Hydrogen‐Bonded Framework With Low‐Density Hexagonal Network Structure Formed by Diethynylterphenyl‐Bridged Macrocyclic Hexacarboxylic Acid

    Yuzuru Kanetada, Ryusei Oketani, Toshiyuki Sasaki, Kouhei Ichiyanagi, Ichiro Hisaki

    Asian Journal of Organic Chemistry　Vol. 14　No. 6　2025/04/26　Research paper (scientific journal)

    Publisher: Wiley

  11. Hydrogen-Bonded Ladder Frameworks Composed of Low Symmetric Tricarboxylic Acids

    Namiki Tanaka, Taito Hashimoto, Yuto Suzuki, Ryusei Oketani, Ichiro Hisaki

    Crystal Growth & Design　Vol. 25　No. 6　p. 1851-1859　2025/02/27　Research paper (scientific journal)

    Publisher: American Chemical Society (ACS)

  12. A robust layer-motif composed of binaphthyl dibenzoic acid derivatives in inclusion crystals

    Ayano Fujiwara, Ryusei Oketani, Ichiro Hisaki

    Bulletin of the Chemical Society of Japan　Vol. 98　No. 3　2025/02/17　Research paper (scientific journal)

    Publisher: Oxford University Press (OUP)

  13. Single Crystalline, Non‐Stoichiometric Hydrogen‐Bonded Organic Frameworks Showing Versatile Fluorescence Depending on Composition Ratios and Distributions

    Taito Hashimoto, Mario de la Hoz Tomás, Ryusei Oketani, Boiko Cohen, Miki Naruoka, Norimitsu Tohnai, Abderrazzak Douhal, Ichiro Hisaki

    Angewandte Chemie International Edition　Vol. 64　No. 9　2024/12/12　Research paper (scientific journal)

    Publisher: Wiley

  14. Conversion of Isolated Voids into Channel Spaces by Modulating the Stacking Manner of Hydrogen‐Bonded Ladders

    Naoto Murakami, Ryusei Oketani, Ichiro Hisaki

    Chemistry – An Asian Journal　Vol. 20　No. 4　2024/12/06　Research paper (scientific journal)

    Publisher: Wiley

  15. Supramolecular synthons, tectons, and crystal structures of noncovalent organic frameworks

    Ichiro Hisaki, Takuto Fujii, Ryusei Oketani

    Chemical Physics Reviews　Vol. 5　No. 4　2024/11/21　Research paper (scientific journal)

    Publisher: AIP Publishing

  16. Transition Behaviors of Isostructural Hydrogen‐Bonded Frameworks Composed of Naphthalene, Quinoxaline, and Pyrazinopyrazine Derivatives

    Haruka Kubo, Shunsuke Konishi, Ryusei Oketani, Takashi Hayashi, Ichiro Hisaki

    Chemistry – A European Journal　Vol. 30　No. 44　2024/07/16　Research paper (scientific journal)

    Publisher: Wiley

  17. Synthesis, solid-state structures, and properties of linear and tripodal flexible molecules with pyrazinopyrazine moieties

    Yuto Ohmura, Ryusei Oketani, Akihito Konishi, Makoto Yasuda, Ichiro Hisaki

    Chemistry Letters　Vol. 53　No. 7　2024/07/02　Research paper (scientific journal)

    Publisher: Oxford University Press (OUP)

  18. Photo‐Responsive Hydrogen‐Bonded Molecular Networks Capable of Retaining Crystalline Periodicity after Isomerization

    Koki Kasuya, Ryusei Oketani, Souta Matsuda, Hiroyasu Sato, Fumitaka Ishiwari, Akinori Saeki, Ichiro Hisaki

    Angewandte Chemie International Edition　Vol. 63　No. 24　2024/05/10　Research paper (scientific journal)

    Publisher: Wiley

  19. Semicontinuous Temperature Cycle-Induced Deracemization Using an Axially Chiral Naphthamide

    Ryusei Oketani, Riku Naito, Ichiro Hisaki

    Organic Process Research and Development　Vol. 28　No. 9　p. 3570-3577　2024/04/30　Research paper (scientific journal)

    Publisher: American Chemical Society (ACS)

  20. A Hydrogen-Bonded, Hexagonally Networked, Layered Framework with Large Aperture Designed by Structural Synchronization of a Macrocycle and Supramolecular Synthon

    Hiroki Yoshimura, Ryusei Oketani, Miki Naruoka, Norimitsu Tohnai, Ichiro Hisaki

    Precision Chemistry　Vol. 2　No. 5　p. 221-228　2024/04/12　Research paper (scientific journal)

    Publisher: American Chemical Society (ACS)

  21. Deracemization of Chiral Ozanimod Key Intermediate using Homogeneous Ir-based Racemization Catalyst

    Ryusei Oketani, Koki Shiohara, Ichiro Hisaki

    2024/03/15

  22. An expanded hydrogen-bonded organic framework formed by a tetrakis(terphenyl)ethene derivative

    Mao Yamaguchi, Mario de la Hoz Tomás, Ayano Fujiwara, Ryusei Oketani, Kohei Okubo, Kouki Oka, Norimitsu Tohnai, Abderrazzak Douhal, Ichiro Hisaki

    Bulletin of the Chemical Society of Japan　Vol. 97　No. 1　2024/01/11　Research paper (scientific journal)

    Publisher: Oxford University Press (OUP)

  23. Thermal fluctuation-induced selective CO2 uptake of seemingly nonporous N,C-protected dipeptide crystals as elucidated by in situ X-ray crystallographic analysis

    Kazuaki Yamanaka, Ryusei Oketani, Yuya Mori, Takashi Sato, Seiji Tsuzuki, Hiroki Takahashi, Hirohito Tsue

    CrystEngComm　Vol. 26　No. 17　p. 2314-2321　2024　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  24. Use of Conglomerate Mixed Crystals to Deracemize a Stable Racemic‐Compound‐Forming System

    Clément Pinètre, François‐Xavier Gendron, Reiko Kuroda, Ryusei Oketani, Christian Aupetit, Thierry Buffeteau, Gérard Coquerel

    Chemistry – A European Journal　Vol. 29　No. 27　2023/03/10　Research paper (scientific journal)

    Publisher: Wiley

  25. Statically and dynamically flexible hydrogen-bonded frameworks based on 4,5,9,10-tetrakis(4-carboxyphenyl)pyrene

    Taito Hashimoto, Ryusei Oketani, Asato Inoue, Kohei Okubo, Kouki Oka, Norimitsu Tohnai, Kazuhide Kamiya, Shuji Nakanishi, Ichiro Hisaki

    Chemical Communications　Vol. 59　No. 47　p. 7224-7227　2023　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  26. Overcoming a solid solution system on chiral resolution: combining crystallization and enantioselective dissolution

    Ryusei Oketani, Koki Shiohara, Ichiro Hisaki

    Chemical Communications　Vol. 59　No. 41　p. 6175-6178　2023　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  27. Single Crystalline, Non‐stoichiometric Cocrystals of Hydrogen‐Bonded Organic Frameworks

    Taito Hashimoto, Ryusei Oketani, Masaki Nobuoka, Shu Seki, Ichiro Hisaki

    Angewandte Chemie International Edition　Vol. 62　No. 1　2022/12/02　Research paper (scientific journal)

    Publisher: Wiley

  28. Isomeric effect of naphthyl spacers on structures and properties of isostructural porous crystalline frameworks

    Yuto Suzuki, Mao Yamaguchi, Ryusei Oketani, Ichiro Hisaki

    Materials Chemistry Frontiers　Vol. 7　No. 1　p. 106-116　2022/11/28　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  29. Slip-Stacking of Benzothiadiazole Can Provide a Robust Structural Motif for Porous Hydrogen-Bonded Organic Frameworks

    Zhuxi Yang, Akinori Saeki, Asato Inoue, Ryusei Oketani, Kazuhide Kamiya, Shuji Nakanishi, Takayoshi Nakamura, Ichiro Hisaki

    Crystal Growth & Design　Vol. 22　No. 7　p. 4472-4479　2022/07/06　Research paper (scientific journal)

  30. Geometrically Mismatched Hydrogen‐bonded Framework Composed of Tetratopic Carboxylic Acid

    Zhuxi Yang, Taito Hashimoto, Ryusei Oketani, Takayoshi Nakamura, Ichiro Hisaki

    Chemistry – A European Journal　Vol. 28　No. 50　2022/06/16　Research paper (scientific journal)

  31. Order–Disorder Phase Transition between High- and Low-Z′ Crystal Structures of the P1 Space Group

    Ryusei Oketani, Hiroki Takahashi, Simon Clevers, Akira Oyamada, Ichiro Hisaki, Gérard Coquerel, Kazuaki Yamanaka, Hirohito Tsue

    Crystal Growth & Design　Vol. 22　No. 4　p. 2230-2238　2022/01/18　Research paper (scientific journal)

    Publisher: American Chemical Society ({ACS})

  32. Quinoxaline-annelated hexadehydro[12]annulene: use of a new building block to construct a hydrogen-bonded hexagonal molecular network

    Mayu Kobayashi, Haruka Kubo, Ryusei Oketani, Ichiro Hisaki

    CrystEngComm　Vol. 24　No. 28　p. 5036-5040　2022　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  33. Two-dimensional Porous Framework Assembled through Hydrogen-bonds and Dipole-dipole Interactions

    Zhuxi Yang, Ayana Moriyama, Ryusei Oketani, Takayoshi Nakamura, Ichiro Hisaki

    Chemistry Letters　Vol. 50　No. 11　p. 1909-1912　2021/09/09　Research paper (scientific journal)

  34. The Polymorphism of 2-Benzoyl-N,N-diethylbenzamide

    Lygia S. de Moraes, Jie Liu, Elumalai Gopi, Ryusei Oketani, Alan R. Kennedy, Yves H. Geerts

    Crystals　Vol. 11　No. 8　p. 1004-1004　2021/08/22　Research paper (scientific journal)

    Publisher: MDPI AG

  35. Quasi single-crystalline transformation of porous frameworks accompanied by interlayer rearrangements of hydrogen bonds

    Haruka Kubo, Ryusei Oketani, Ichiro Hisaki

    Chemical Communications　Vol. 57　No. 69　p. 8568-8571　2021/08/02　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry ({RSC})

  36. Front Cover: Deracemization in a Complex Quaternary System with a Second‐Order Asymmetric Transformation by Using Phase Diagram Studies (Chem. Eur. J. 61/2019)

    Ryusei Oketani, Francesco Marin, Paul Tinnemans, Marine Hoquante, Anne Laurent, Clément Brandel, Pascal Cardinael, Hugo Meekes, Elias Vlieg, Yves Geerts, Gérard Coquerel

    Chemistry – A European Journal　Vol. 25　No. 61　p. 13833-13833　2019/11/04　Research paper (scientific journal)

    Publisher: Wiley

  37. Deracemization in a Complex Quaternary System with a Second‐Order Asymmetric Transformation by Using Phase Diagram Studies

    Ryusei Oketani, Francesco Marin, Paul Tinnemans, Marine Hoquante, Anne Laurent, Clément Brandel, Pascal Cardinael, Hugo Meekes, Elias Vlieg, Yves Geerts, Gérard Coquerel

    Chemistry – A European Journal　Vol. 25　No. 61　p. 13837-13837　2019/11/04　Research paper (scientific journal)

    Publisher: Wiley

  38. Resolution of an Atropisomeric Naphthamide by Second-Order Asymmetric Transformation: A Highly Productive Technique

    Ryusei Oketani, Marine Hoquante, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    Organic Process Research & Development　Vol. 23　No. 6　p. 1197-1203　2019/06/21　Research paper (scientific journal)

    Publisher: American Chemical Society ({ACS})

  39. NH-form of a threonine-based Schiff base in the solid state

    Ryusei Oketani, Hiroki Takahashi, Marine Hoquante, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    Journal of Molecular Structure　Vol. 1184　No. 1184　p. 36-40　2019/05　Research paper (scientific journal)

    Publisher: Elsevier {BV}

  40. Practical Role of Racemization Rates in Deracemization Kinetics and Process Productivities

    Ryusei Oketani, Marine Hoquante, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    Crystal Growth & Design　Vol. 18　No. 11　p. 6417-6420　2018/11/07　Research paper (scientific journal)

    Publisher: American Chemical Society ({ACS})

  41. Effect of Substituents on TiO2 Photocatalytic Oxidation of trans-Stilbenes

    Teruyuki Miyake, Yuichiro Hashimoto, Seihou Jinnai, Ryusei Oketani, Suguru Higashida

    Bulletin of the Chemical Society of Japan　Vol. 92　No. 1　p. 55-60　2018/10/24　Research paper (scientific journal)

  42. Formation of Lactones by Decarboxylation of Aromatic Diacids via TiO2-mediated Photocatalytic Reactions in Acetonitrile Solution

    Ryusei Oketani, Teruyuki Miyake, Seihou Jinnai, Takuya Fukui, Hidetaka Tsujimoto, Michio Matsumura, Suguru Higashida

    Chemistry Letters　Vol. 45　No. 7　p. 801-803　2016/07/05　Research paper (scientific journal)

  43. Azacalixarene: An Ever-Growing Class in the Calixarene Family

    Hirohito Tsue, Ryusei Oketani

    Advances in Organic Crystal Chemistry　p. 241-261　2015　Part of collection (book)

    Publisher: Springer Japan

Misc. 1

  1. Le Grand Cru de l'Expérience

    Ryusei Oketani

    Organometallic News　No. 3　p. 93-94　2024/07/30　Other

Publications 1

  1. ファインケミカル、医薬品の連続生産プロセス

    桶谷龍成

    技術情報協会　2024/11/29

Presentations 50

  1. Spontaneous chiral symmetry breaking in a single crystal through SC-SC transformation of phenothiazine derivative

    Ryusei OKETANI

    26th International Conference on the Chemistry of the Organic Solid State (ICCOSS XXVI)　2025/07/14

  2. Laser Irradiation Induced Chiral Symmetry Breaking in a Single Crystal

    Ryusei Oketani

    Structured and Chiral Light Fields for Interdisciplinary Science　2025/02/27

  3. Chirality Amplification Step of Temperature Cycle-Induced Deracemization

    Ryusei Oketani

    Japan-Taiwan Bilateral Workshop on Nano-Science 2024 (JTBW2024)　2024/12/12

  4. Chiral resolution through crystallization in mixed crystal systems based on heterogeneous equilibria

    Ryusei Oketani

    34th Meeting of the European Crystallographic Association（ECM34）　2024/08/27

  5. Piezofluorochromism of anthracene introduced phenacene derivative in solid state

    Ryusei Oketani, Kaisei Niibori, Hikaru Sotome, Yuki Nakamoto, Tomoko Kagayama, Hiroyasu Sato, Ichiro Hisaki

    Pacifichem2025　2025/12/18

  6. Laser-induced structural transition between achiral and chiral single crystal of planar or axilly chiral molecules

    Ryusei Oketani, Musashi Okada, Saki Ikeda, Ken-ichi Yuyama, Takuya Nakashima, Ichiro Hisaki

    Pacifichem2025　2025/12/17

  7. Spontaneous chiral symmetry breaking in a single crystal using dynamically chiral molecules toward understanding the Å-scale light and matter interaction

    Ryusei Oketani, Musashi Okada, Saki Ikeda, Kentaro Takaji, Hajime Shigemitsu, Shogo Kawashima, Ryo Kato,Ken-ichi Yuyama, Takuya Nakashima, Ichiro Hisaki

    AsCA2025　2025/12/04

  8. フェナセン誘導体の結晶が高圧下で示す構造変化とピエゾフルオロクロミズム

    桶谷龍成・新堀魁星・五月女光・中本有紀・平尾直久・門林宏和・神山凌弥・久木一朗

    第35回基礎有機化学討論会　2025/09/09

  9. 分子性結晶の光学分割と画像認識によるキラル分析

    桶谷龍成、久木一朗

    第31回日本高専学会年会講演会　2025/09/04

  10. Spontaneous Chiral Symmetry Breaking in a Single Crystal through SC–SC Structural Transition

    Ryusei Oketani, Saki Ikeda, Musashi Okada, Ryo Kato, Shogo Kawashima, Ichiro Hisaki

    35th International Symposium on Chirality　2025/07/30

  11. Structural transitions between achiral and chiral crystal structures of planar or axially chiral molecules controlled by light irradiation

    Ryusei Oketani, Musashi Okada, Saki Ikeda, Ken-ichi Yuyama, Takuya Nakashima, Ichiro Hisaki

    OPTICS & PHOTONICS International Congress 2025 (OPIC2025)　2025/04/24

  12. アキラルーキラル結晶構造間の構造転移の光照射による時空間制御

    桶谷 龍成,岡田 武蔵,池田 紗希, 柚山 健一,中嶋 琢也,久木 一朗

    第72回応用物理学会春季学術講演会　2025/03/16

  13. 温度サイクルによるデラセミ化の増幅過程の理解と プロセス最適化

    桶谷龍成、内藤陸、久木一朗

    化学工学会第90年会　2025/03/14

  14. 面不斉分子性結晶の自発的なキラル対称性の破れを伴う結晶構造転移

    桶谷 龍成・岡田 武蔵・中嶋 琢也・久木 一朗

    第53回結晶成長国内会議　2024/11/20

  15. 面不斉をもつフェノチアジン誘導体の単結晶－単結晶構造転移におけるキラル対称性の破れ

    桶谷 龍成・岡田 武蔵・中嶋 琢也・久木 一朗

    第32回有機結晶シンポジウム　2024/10/27

  16. Chiral resolution by crystallization based on solid-liquid equilibrium

    Ryusei Oketani

    Online seminar, Suranaree University of Technology　2024/09/02

  17. Crystallization-induced Diastereomeric Transformation of Chiral Primary Amine using Homogeneous Ir-based Racemization Catalyst

    Ryusei Oketani, Koki Shiohara, Ichiro Hisaki

    15th International Workshop on Crystal Growth of Organic Materials (CGOM15)　2024/07/25

  18. Structural transitions between achiral and chiral crystal structures toward understanding the exchange of angular momentum between light and matter

    Ryusei Oketani, Musashi Okada, Ichiro Hisaki

    OPTICS & PHOTONICS International Congress 2024 (OPIC2024)　2024/04/25

  19. Overcoming a Solid Solution System on Chiral Resolution: Combining Crystallization and Dissolution

    Ryusei Oketani

    2023 Taiwan-Japan Bilateral Workshop (TJBW2023)　2023/12/11

  20. Order-disorder Phase Transition between High- and Low-Z’ crystal structures: Crystallographic and non-linear optics study on transition

    Ryusei Oketani, Hiroki Takahashi, Simon Clevers, Akira Oyamada,Ichiro Hisaki, Gérard Coquerel, Hirohito Tsue

    IUCr 2023　2023/08/25

  21. ラセミ結晶を作る化合物のデラセミ化を目指す

    黒田玲子、 François-Xavier Gendron、Clément Pinètre、桶⾕⿓成、Gérard Coquerel

    Symposium on Molecular Chirality 2023　2023/06/15

  22. Temperature-induced Order-disorder Phase Transition of N,C-protected dipeptide

    Ryusei Oketani

    Japan Taiwan Bilateral Workshop (JTBW2022)　2022/11/28

  23. Order-Disorder Phase Transition of N,C-protected Methyonylglycine

    Ryusei Oketani, Hiroki Takahashi, Simon Clevers, Akira Oyamada,Ichiro Hisaki, Gérard Coquerel, Hirohito Tsue

    The 17th Conference of the Asian Crystallographic Association (AsCA2022)　2022/10/30

  24. Order-Disorder Phase Transition Between High- and Low-Z' Crystal Structures of N,C-Protected Dipeptide

    Ryusei Oketani, Hiroki Takahashi, Simon Clevers, Akira Oyamada,Ichiro Hisaki, Gérard Coquerel, Hirohito Tsue

    14th INTERNATIONAL CONFERENCE ON CRYSTAL GROWTH OF ORGANIC MATERIALS (CGOM14)　2022/09/12

  25. 軸性キラルなナフタミドの4 元型相図と第二次不斉変換による光学分割

    桶谷 龍成, Francesco Marin, Paul Tinnemans, Marine Hoquante, Anne Laurent, Clément Brandel, Pascal Cardinael, Hugo Meekes, Elias Vlieg, Yves Geerts, Gérard Coquerel

    日本化学会第102春季年会　2022/03/23

  26. Order-disorder Phase Transition between High and Low Z’ Crystal Structures of N,C-protected dipeptide

    Ryusei Oketani, Hiroki Takahashi, Simon Clevers, Akira Oyamada, Ichiro Hisaki,Gérard Coquerel, Kazuaki Yamanaka, Hirohito Tsue

    モレキュラーキラリティシンポジウム2021　2021/11/29

  27. Practical and theoretical aspects of deracemization of atropisomeric naphthamide.

    Ryusei Oketani

    Final Workshop & Mini-Symposium ITN-CORE 2019　2019/11/09

  28. Phase diagram study and chiral resolution of axially chiral naphthamide derivative

    Ryusei Oketani, Marine Hoquante, Clément Brandel, Simon Clevers, Francesco Marin, Paul Tinnemans, Hugo Meekes, Elias Vlieg, Yves Geerts, Pascal Cardinael, Gérard Coquerel

    24th International Conference on the Chemistry of the Organic Solid State (ICCOSS XXIV 2019)　2019/07/18

  29. Thorough phase diagram study of axially chiral naphthamide and application for chiral resolution

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    CORE Workshop – Chirality in Practice　2019/05/24

  30. Interplay of the racemization rate and the crystal growth rate on the deracemization rate

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    The 25th Bremen International Workshop on Industrial Crystallization (BIWIC2018)　2018/09/06

  31. The role of racemization and crystal growth kinetics on deracemization rate of naphthamide compound using temperature cycling

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    13th International Workshop of the Crystal Growth of Organic Material (CGOM13)　2018/08/28

  32. Deracemization of atropisomeric naphthamide through temperature cycles

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    Symposium on Molecular Chirality 2018　2018/05/11

  33. Study of crystallization-induced chiral/diastereomeric resolution

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    Summer School Process Analytical Technologies for Crystallization　2018/04/17

  34. Optimization of Second Order Asymmetric Transformation

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    CORE Workshop – Solid State Properties　2017/11/07

  35. Optimization of SOAT: Example of Naphthamide deracemization

    Ryusei Oketani, Clément Brandel, Pascal Cardinael, Gérard Coquerel

    Summer School on Chiral Crystallization, Resolution & Deracemization　2017/07/04

  36. メチオニルアラン保護体のCO2吸着状態：結晶構造解析 と分子間相互作用

    桶谷龍成・森有彌・佐々木皓平・高橋弘樹・都築誠二・田村類・津江広人

    第27回基礎有機化学討論会　2016/09/01

  37. 金属ポルフィリンの結晶構造と水素貯蔵特性

    桶谷龍成・山中壱朗・高橋弘樹・片桐利真・野呂佳弘・都築誠二・田村類・津江広人

    第96回日本化学会春季年会　2016/03/25

  38. Crystal structure and gas adsorption behavior of magnesium porphyrin with open coordination sites

    Ryusei Oketani, Hiroki Takahashi, Rui Tamura, Hirohito Tsue

    Pacifichem 2015, Honolulu, December, 2015.　2015/12/17

  39. X-ray Crystallographic Analysis of CO2 Adsorption State in Seemingly Nonporous Crystal of N,C-Proteced Methionylalanine

    Ryusei Oketani, Yuya Mori, Kohei Sasaki, Hiroki Takahashi, Rui Tamura, Hirohito Tsue

    22nd International Conference on the Chemistry of the Organic Solid State (ICCOSS XXII JAPAN 2015)　2015/07/15

  40. 配位不飽和なマグネシウムポルフィリンの結晶構造と気体吸着特性

    桶谷龍成・高橋弘樹・田村類・津江広人

    第95回日本化学会春季年会　2015/03/26

  41. メチオニルアラニン保護体の合成、気体吸着挙動、およびCO2吸着状態の結晶構造解析

    桶谷龍成・森有彌・佐々木皓平・高橋弘樹・田村類・津江広人

    第23回有機結晶シンポジウム　2014/09/16

  42. Formation of Lactones from Aromatic Diacid Compounds in Acetonitrile Solution by TiO2-Photocatalytic Reactions

    Ryusei Oketani, Suguru Higashida, Michio Matsumura

    The Seventh Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT7)　2014/06/05

  43. 二酸化チタン光触媒反応による芳香族ジカルボン酸の脱炭酸を伴うラクトン合成

    桶谷龍成・東田卓・松村道雄

    第94回日本化学会春季年会　2014/03/27

  44. 芳香族ジカルボン酸の光触媒反応によるラクトン骨格への変換

    桶谷龍成・東田卓・松村道雄

    第19回日本高専学会年会　2013/08/31

  45. 二酸化チタン光触媒による芳香族ジカルボン酸の脱炭酸を伴う環化反応

    桶谷龍成・東田卓・松村道雄

    第32回数理科学講演会　2013/08/07

  46. TiO2光触媒を用いたビフェニル酸のラクトン環形成

    桶谷龍成・三宅輝幸・東田卓・松村道雄

    第93回日本化学会春季年会　2013/03/24

  47. TiO2光触媒を用いたジカルボン酸の閉環反応

    桶谷龍成・東田卓

    大阪府立高専地域交流メッセ　2013/03/07

  48. F処理TiO2を用いた光触媒反応による閉環反応

    桶谷龍成・東田卓・松村道雄

    キャラクタリゼーション講習会　2012/10/12

  49. 二酸化チタン光触媒反応によるラクトン骨格形成反応と水添加量の検討

    桶谷龍成・橋元祐一郎・陣内青萌・東田卓

    第18回日本高専学会年会　2012/08/25

  50. 酸化チタン光触媒反応によるラクトン骨格の形成反応

    桶谷龍成・東田卓

    第14回工業高等専門学校生化学研究発表会　2012/03/13

Industrial Property Rights 1

  1. 化合物、化合物の分子性結晶、ならびに分子性結晶を備える圧力センサ

    桶谷龍成, 久木一朗

    出願日:2025/07/11

Social Activities 1

  • 深層学習を用いて、溶媒に溶かさず結晶のままキラリティを判別

    河合塾　みらいぶっく 学問・大学なび

    2024/04/01 - Present

Institutional Repository 7

Content Published in the University of Osaka Institutional Repository (OUKA)

  1. Layer Sliding-Induced Fluorescence Changes in a Flexible Hydrogen-Bonded Organic Framework

    Hashimoto Taito, de la Hoz Tomás Mario, Oketani Ryusei, Cohen Boiko, Douhal Abderrazzak, Hisaki Ichiro

    Chemistry - A European Journal　Vol. 31　No. 46　2025/07/25

  2. Hydrogen-Bonded Framework With Low-Density Hexagonal Network Structure Formed by Diethynylterphenyl-Bridged Macrocyclic Hexacarboxylic Acid

    Kanetada Yuzuru, Oketani Ryusei, Sasaki Toshiyuki, Ichiyanagi Kouhei, Hisaki Ichiro

    Asian Journal of Organic Chemistry　Vol. 14　No. 6　2025/04/26

  3. Single Crystalline, Non-Stoichiometric Hydrogen-Bonded Organic Frameworks Showing Versatile Fluorescence Depending on Composition Ratios and Distributions

    Hashimoto Taito, Hoz Tomás Mario de la, Oketani Ryusei, Cohen Boiko, Naruoka Miki, Tohnai Norimitsu, Douhal Abderrazzak, Hisaki Ichiro

    Angewandte Chemie - International Edition　2024/12/12

  4. Transition Behaviors of Isostructural Hydrogen-Bonded Frameworks Composed of Naphthalene, Quinoxaline, and Pyrazinopyrazine Derivatives

    Kubo Haruka, Konishi Shunsuke, Oketani Ryusei, Hayashi Takashi, Hisaki Ichiro

    Chemistry - A European Journal　Vol. 30　No. 44　2024/08/06

  5. Synthesis, solid-state structures, and properties of linear and tripodal flexible molecules with pyrazinopyrazine moieties

    Ohmura Yuto, Oketani Ryusei, Konishi Akihito, Yasuda Makoto, Hisaki Ichiro

    Chemistry Letters　Vol. 53　No. 7　2024/07/10

  6. Photo-Responsive Hydrogen-Bonded Molecular Networks Capable of Retaining Crystalline Periodicity after Isomerization

    Kasuya Koki, Oketani Ryusei, Matsuda Souta, Sato Hiroyasu, Ishiwari Fumitaka, Saeki Akinori, Hisaki Ichiro

    Angewandte Chemie - International Edition　Vol. 63　No. 24　2024/06/10

  7. Single Crystalline, Non-stoichiometric Cocrystals of Hydrogen-Bonded Organic Frameworks

    Hashimoto Taito, Oketani Ryusei, Nobuoka Masaki, Seki Shu, Hisaki Ichiro

    Angewandte Chemie - International Edition　Vol. 62　No. 1　2023/01/02