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Structure and electronic-state of the liquid-like cluster observed during solvent evaporative crystallization process

Research Project

Project/Area Number 19H02686
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 32020:Functional solid state chemistry-related
Research InstitutionShinshu University

Principal Investigator

Ito Fuyuki  信州大学, 学術研究院教育学系, 教授 (80403921)

Co-Investigator(Kenkyū-buntansha) 坂本 章  青山学院大学, 理工学部, 教授 (90262146)
岡島 元  中央大学, 理工学部, 准教授 (20582654)
島田 林太郎  青山学院大学, 理工学部, 助教 (70548940)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Keywords蛍光スペクトル / 有機結晶 / 液滴状クラスター / ハイパースペクトルカメラ / 低振動数ラマン分光 / 結晶成長 / 有機分子集合体 / アモルファス / 相転移 / 有機結晶生成 / 液滴状凝集体
Outline of Research at the Start

近年,新たな表示デバイスとして有機電界発光(EL)の開発が急速に進んでいる.発光体として用いられる有機化合物の固体は,分子構造のみだけでなくそれらの集合様式にも依存してその発光色は劇的に変化する.有機分子集合化の過程を理解することができればより最適なプロセス設計,制御へとつながる.そこで本研究では,有機結晶生成過程で観測される中間体の「液滴状凝集体」に関する知見を得るために,溶媒蒸発結晶化過程の蛍光可視化ならびに低振動数ラマン分光,微小角入射広角X線散乱のリアルタイム測定に基づく構造解析を実施し,結晶化における分子間相互作用と有機分子固体での相に依存した蛍光特性を明らかにする.

Outline of Final Research Achievements

We have previously reported the molecular dynamics of the crystallization process based on the fluorescence changes during the evaporative crystallization. These results support the two-step nucleation mechanism based on the fluorescence spectral changes from the monomer in solution to the crystal via an amorphous-like intermediate. In this study, we elucidate the structure and properties of the amorphous-like intermediate. The key intermediate liquid-like cluster state for the two-step nucleation mechanism is visualized by the fluorescence color changes of dibenzoylmethanatoboron difluoride derivatives. Three types of emissive species (Crystal, BG-aggregates, and Amorphous) are generated from monomers in solution via liquid-like clusters during solvent evaporation. In terms of crystallization dynamics, our results indicate that it is important not only to generate supersaturated states, but also to maintain the survival time of the liquid-like cluster.

Academic Significance and Societal Importance of the Research Achievements

結晶生成に関する核形成機構で提案されてきている「二段階核形成機構」で想定されている液滴状クラスターの構造,物性に関する評価をすすめることができた.また,この中間体の保持時間が,結晶析出のみならず多形発現にも影響を与えていることを実証した.この結果は,有機結晶の関与する医薬品や機能性固体材料の合理的製造プロセスに重要な視座を与えるものである.また,不均一系の界面現象の実時間変化の観測に,ハイパースペクトルカメライメージング蛍光スペクトルイメージングを適用したことは,その汎用性を拡大させた意義をもつ.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (33 results)

All 2022 2021 2020 2019

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (24 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results)

  • [Journal Article] Molecular Aggregation Dynamics via a Liquid-like Cluster Intermediate during Heterogeneous Evaporation as Revealed by Hyperspectral Camera Fluorescence Imaging2022

    • Author(s)
      Katsumi Shiho、Saigusa Mai、Ito Fuyuki
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 126 Issue: 4 Pages: 976-984

    • DOI

      10.1021/acs.jpcb.1c09507

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observation of an Intermediate State in the Solid?Solid Phase Transition of a Single Crystal of Perylene2022

    • Author(s)
      Fukushima Misa、Sato Kenta、Fujimoto Yushi、Ito Fuyuki、Katoh Ryuzi
    • Journal Title

      Crystal Growth & Design

      Volume: 22 Issue: 4 Pages: 2071-2075

    • DOI

      10.1021/acs.cgd.2c00015

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A phosphonium ylide as a visible light organophotoredox catalyst2021

    • Author(s)
      Yasunori Toda, Katsumi Tanaka, Riki Matsuda, Tomoyuki Sakamoto, Shiho Katsumi, Masahiro Shimizu, Fuyuki Ito, Hiroyuki Suga
    • Journal Title

      Chem. Commun.

      Volume: 57 Issue: 29 Pages: 3591-3594

    • DOI

      10.1039/d1cc00996f

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Real‐Time Fluorescence Visualization of Nanoparticle Aggregation and the Polymorph‐Transition Process of a Mechanofluorochromic Difluoroboron‐β‐Diketone Derivative2021

    • Author(s)
      Ito Fuyuki、Naganawa Ryuji、Fujimoto Yushi、Takimoto Maori、Mochiduki Yoshifumi、Katsumi Shiho
    • Journal Title

      ChemPhysChem

      Volume: 22 Issue: 16 Pages: 1662-1666

    • DOI

      10.1002/cphc.202100370

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Assembling Structures of Diphenylalanine Linked with Dibenzoylmethanatoboron Difluoride Depending on the Solvent as Probed by Fluorescence Changes2020

    • Author(s)
      Katsumi Shiho、Sagawa Takehiro、Fukaminato Tsuyoshi、Ito Fuyuki
    • Journal Title

      Chemistry Letters

      Volume: 49 Issue: 7 Pages: 802-805

    • DOI

      10.1246/cl.200215

    • NAID

      130007872567

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis and fluorescence photoswitching of a diarylethene derivative having a dibenzoylmethanato boron difluoride complex2020

    • Author(s)
      Ikariko Issei、Hashimoto Takuma、Kim Sunnam、Kurihara Seiji、Ito Fuyuki、Fukaminato Tuyoshi
    • Journal Title

      Tetrahedron Letters

      Volume: 61 Issue: 29 Pages: 152108-152108

    • DOI

      10.1016/j.tetlet.2020.152108

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic interactions between a quaternary pyridyl-β-diketonate and anionic clay nanosheets facilitate intense photoluminescence2020

    • Author(s)
      Okada Tomohiko、Miyamoto Yoko、Kurihara Haruka、Mochiduki Yoshifumi、Katsumi Shiho、Ito Fuyuki
    • Journal Title

      Photochemical & Photobiological Sciences

      Volume: 19 Issue: 10 Pages: 1280-1288

    • DOI

      10.1039/d0pp00166j

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis and multicolor emission properties of polystyrene with difluoroboron avobenzone complexes at side chains2020

    • Author(s)
      Shimizu Katsuya、Okuma Arisa、Katsumi Shiho、Ito Fuyuki、Kobatake Seiya
    • Journal Title

      Dyes and Pigments

      Volume: 177 Pages: 108283

    • DOI

      10.1016/j.dyepig.2020.108283

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2019815

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaporative Crystallization of Dibenzoylmethanato Boron Difluoride Probed by Time-resolved Quartz Crystal Microbalance Responses with Fluorescence Changes2019

    • Author(s)
      Ito Fuyuki、Saigusa Mai、Kanayama Naoki
    • Journal Title

      Chemistry Letters

      Volume: 48 Issue: 10 Pages: 1199-1202

    • DOI

      10.1246/cl.190501

    • NAID

      130007724078

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Recent Progress for Fluorescence Visualization of Aggregation Process for Organic Materials2021

    • Author(s)
      Fuyuki Ito
    • Organizer
      LIA/IRP NanoSynergetics seminar, Online
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular Reorganization during the Evaporative Crystallization Process as Monitored by AIE Phenomena2021

    • Author(s)
      Fuyuki Ito, Yushi Fujimoto, Yoshifumi Mochiduki
    • Organizer
      International Conference on Aggregate Science 20th Anniversary of AIE Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高分子ブレンド薄膜における相分離構造のハイパースペクトル蛍光イメージング2021

    • Author(s)
      伊藤冬樹,畑野義弥,勝見志穂
    • Organizer
      2021年光化学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Fluorescence changes of dibenzoylmethanato boron difluoride complex with aggregation-induced emission property during the evaporative crystallization2021

    • Author(s)
      Yushi Fujimoto, Yoshifumi Mochiduki and Fuyuki Ito
    • Organizer
      2021年光化学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ハイパースペクトルカメラを利用した凝集誘起発光分子の多形発現過程の蛍光可視化2021

    • Author(s)
      藤本悠史,望月啓文,伊藤冬樹
    • Organizer
      第40回固体・表面光化学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ハイパースペクトルイメージングを利用したジピロリルジケトンフッ化ホウ素錯体の結晶-結晶相転移過程の蛍光観測2020

    • Author(s)
      伊藤冬樹,奥田雄太,勝見志穂,羽毛田洋平,前田大光
    • Organizer
      2020年光化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] , Fluorescence observation of dibenzoylmethanato boron fluoride complex derivative during evaporative crystallization observed by hyperspectral camera imaging2020

    • Author(s)
      Shiho Katsumi and Fuyuki Ito
    • Organizer
      2020年光化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ホスホニウムイリドを有機光レドックス触媒として用いるエポキシドへのHCl付加反応2020

    • Author(s)
      田中 克,松田倫宜,坂本智行,勝見志穂,伊藤冬樹,清水雅裕,戸田泰徳,菅 博幸
    • Organizer
      第49回 複素環化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ハイパースペクトルカメラに基づく溶媒蒸発結晶化過程における分子集合化ダイナミクスの研究2020

    • Author(s)
      勝見志穂,伊藤冬樹,浅尾直樹
    • Organizer
      第10回CSJ化学フェスタ2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] ハイパースペクトルカメラを利用した液滴蒸発過程の空間不均一性と分子凝集化の研究2020

    • Author(s)
      勝見志穂・伊藤冬樹・浅尾直樹
    • Organizer
      第39回固体・表面光化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Study of spatial heterogeneity and molecular aggregation dynamics during evaporative crystallization by hyperspectral camera imaging2020

    • Author(s)
      Shiho Katsumi,Fuyuki Ito
    • Organizer
      5th Nanosynergetics Workshop
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アボベンゾンフッ化ホウ素錯体ポリマーのマルチカラー発光特性2020

    • Author(s)
      清水克哉,大隈有紗,勝見志穂,伊藤冬樹,小畠誠也
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 顕微複屈折イメージングによる準安定相ペリレン単結晶の熱的相転移の観察2020

    • Author(s)
      福島未彩,佐藤健太,伊藤冬樹,加藤隆二
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ハイパースペクトルカメラを用いたジベンゾイルメタンフッ化ホウ素錯体の溶媒蒸発結晶化過程における蛍光変化の観測2020

    • Author(s)
      勝見志穂,伊藤冬樹,浅尾直樹
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 凝集体モデルからアモルファスへ2020

    • Author(s)
      伊藤冬樹
    • Organizer
      日本化学会第100春季年会特別企画「ルミネッセンス化学アンサンブル:激論!固体発光の謎:分子設計・合成・計測の立場から」
    • Related Report
      2019 Annual Research Report
  • [Presentation] 画像データに基づくジベンゾイルメタンフッ化ホウ素錯体の溶媒蒸発結晶化過程における蛍光色変化の解析2019

    • Author(s)
      勝見志穂,七種真衣,滝本眞織,伊藤冬樹,浅尾直樹
    • Organizer
      2019年光化学討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ジベンゾイルメタンフッ化ホウ素錯体の溶媒蒸発結晶化過程での蛍光色変化に及ぼす置換基の影響2019

    • Author(s)
      望月啓文,伊藤冬樹
    • Organizer
      2019年光化学討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 蛍光性メカノクロミック錯体ジベンゾイルメタンフッ化ホウ素誘導体の急冷凝固アモルファス中に生じるマイクロ結晶のラマン分光分析2019

    • Author(s)
      松本陽太郎,岡島 元,伊藤冬樹,坂本 章
    • Organizer
      第13回分子科学討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 三核金錯体の結晶成長過程における発光挙動変化2019

    • Author(s)
      黒田由紀, 伊藤冬樹, 久野恭平, 堤 治
    • Organizer
      錯体化学会第69回討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 蛍光色素分子溶液の液滴蒸発過程における蛍光変化と分子凝集状態2019

    • Author(s)
      伊藤冬樹,七種真衣,望月啓文,勝見志穂
    • Organizer
      第50回 中部化学関係学協会支部連合秋季大会(松本)
    • Related Report
      2019 Annual Research Report
  • [Presentation] ハイパースペクトル画像に基づくジベンゾイルメタンフッ化ホウ素錯体の溶媒蒸発結晶化過程における蛍光色変化の解析2019

    • Author(s)
      勝見志穂,七種真衣,伊藤冬樹,浅尾直樹
    • Organizer
      第50回 中部化学関係学協会支部連合秋季大会(松本)
    • Related Report
      2019 Annual Research Report
  • [Presentation] ジベンゾイルメタンフッ化ホウ素錯体の溶媒蒸発結晶化での蛍光色変化に及ぼす置換基効果2019

    • Author(s)
      望月啓文,伊藤冬樹
    • Organizer
      第50回 中部化学関係学協会支部連合秋季大会(松本)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Real-time Imaging of evaporative crystallization process of dibenzoylmethanato boron difluoride complexes by hyperspectral camera2019

    • Author(s)
      Fuyuki Ito
    • Organizer
      ISOP satellite workshop on Nano-Synergetics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The relation between mechanofluorochromic properties and evaporative crystallization process for dibenzoylmethane difluoride complexes2019

    • Author(s)
      Fuyuki Ito, Yoshifumi Mochizuki, Mai Saigusa
    • Organizer
      9th International Symposium On Photochromism (ISOP2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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