The creation and applications of the hydrogen bonding 3 D assembly system based on the dinuclear iron(II) triple helicate

• Project/Area Number: 15K05455
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic chemistry
• Research Institution: Okayama University
• Principal Investigator: Sunatsuki Yukinari 岡山大学, 自然生命科学研究支援センター, 助教 (80362987)
• Research Collaborator: SUZUKI Takayoshi 岡山大学, 大学院自然科学研究科, 教授 ; KOJIMA Masaaki 岡山大学, 名誉教授
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 三重らせん型鉄(II)錯体 / 水素結合 / 三次元集積化構造 / 分子取り込み能 / キラル認識 / スピンクロスオーバー

Outline of Final Research Achievements

The preparation of 3 D assembly was attempted by the partial deprotonation of the iron(II) triple helicate aiming applications for chiral recognition and molecular sensor. Although the research objective is not reached up to date, tetranuclear tetrahedral molecules developable to cage complexes were obtained instead. In addition, it was revealed that slow conformational change of ligand substituent in solid state causes the scan-rate dependent spin-crossover behavior of a mononuclear Fe(II) complex with related bidentate ligand.

Research Products

• [Journal Article] Polymorphs of spin-crossover iron(II) complex fac-[FeII(HLn-Pr)3]Cl·PF6 (HLn-Pr = 2-methylimidazol-4-yl-methylideneamino-n-propyl): Assembly structures and scan rate dependent spin-crossover properties with thermal hysteresis (2017)
  • Author(s): T. Ueno, Y. Ii, T. Fujinami, N. Matsumoto, S. Iijima, Y. Sunatsuki
  • Journal Title: Polyhedron (ICMM2016特集号) Volume: 印刷中 Pages: 13-22
  • DOI: 10.1016/j.poly.2017.03.028
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Synthesis and properties of multinuclear iron(II) complexes with bis-bidentate Schiff base ligands containing imidazole groups (2017)
  • Author(s): T. Tanaka, Y. Sunatsuki, and T. Suzuki
  • Organizer: 錯体化学会第67回討論会
• [Presentation] Molecular Structures of two Polymorphs of an Iron(II) Complex with an Imidazole Containing Bidentate Schiff Base Ligand and Their Scan Rate Dependent Spin-Crossover Behavior (2016)
  • Author(s): Y. Sunatsuki, T. Fujinami, N. Matsumoto, S. Iijima, and M. Kojima
  • Organizer: XXth International Winter School on Coordination Chemistry
  • Place of Presentation: Karpacz, Poland
  • Year and Date: 2016-12-05
  • Int'l Joint Research
• [Presentation] Scan Rate Dependent Spin-Crossover and Porymorphs of Iron(II) Complex with an Imidazole Containing Bidentate Schiff Base Ligand (2016)
  • Author(s): Y. Sunatsuki, T. Fujinami, N. Matsumoto, S. Iijima, and M. Kojima
  • Organizer: The 15th International Conference on Molecul-Based Magnets (ICMM2016)
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2016-09-04
  • Int'l Joint Research
• [Presentation] Synthesis, structures, magnetic properties and oxidation reactions of Co(II) complexes with strand-type hexadentate ligands having thioether-amidato-pyridyl donor set (2016)
  • Author(s): Y. Sunatsuki, Y. Yamane, T. Tada, T. Suzuki, and M. Kojima
  • Organizer: 42nd International Conference on Coordination Chemistry (ICCC2016)
  • Place of Presentation: Brest, France
  • Year and Date: 2016-07-04
  • Int'l Joint Research
• [Presentation] Synthesis and properties of multinuclear iron(II) complexes bridged (2016)
  • Author(s): T. Tanaka, Y. Sunatsuki, and T. Suzuki
  • Organizer: 日本化学会 第96春季年会
  • Place of Presentation: 京都
  • Year and Date: 2016-03-24
• [Presentation] Multinuclear iron(II) complexes bridged by tetradentate bis(Schiff base)-type ligands (2015)
  • Author(s): T. Tanaka, Y. Sunatsuki, and T. Suzuki
  • Organizer: The International Chemical Congress of Pacific Basin Societies 2015
  • Place of Presentation: Honolulu, Hawaii, U.S.A.
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] イミダゾール基を含むbis-bidentate型シッフ塩基配位子を用いた多核鉄(II)錯体の合成と性質 (2015)
  • Author(s): 田中翼，砂月幸成，鈴木孝義
  • Organizer: 2015年日本化学会中国四国支部大会
  • Place of Presentation: 岡山
  • Year and Date: 2015-11-14
• [Presentation] イミダゾール基を含むbis-bidentate型シッフ塩基を用いた多核鉄(II)錯体の合成 (2015)
  • Author(s): 田中翼，砂月幸成，鈴木孝義
  • Organizer: 第65回錯体化学討論会
  • Place of Presentation: 奈良
  • Year and Date: 2015-09-21