Circularly Polarized ESR Spectroscopy and Magnetochemistry of Molecule-based Magnets

• Project/Area Number: 25620063
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: Osaka City University
• Principal Investigator: SHIOMI Daisuke 大阪市立大学, 大学院理学研究科, 准教授 (40260799)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: スピン / キラリティー / ＥＳＲ / ＥＰＲ / 円偏波 / ラジカル / ＳＱＵＩＤ / 分子磁性体 / キラリティ / 電子スピン共鳴 / ESR / SQUID / 円偏光 / 磁気光学効果

Outline of Final Research Achievements

We have developed a novel ESR spectroscopy method for examining chirality of spin assemblage systems. The static longitudinal magnetization can be detected with a conventional SQUID magnetometer where a circularly polarized (CP) microwave is introduced with a waveguide. The waveguide suitable for the detection of macroscopic magnetization under the static magnetic field and the CP field was designed on the basis of electromagnetic field simulations. For a standard sample of an achiral organic radical, ESR signals were observed under the irradiation of the CP microwave field.

Research Products

• [Journal Article] Preparation and Magnetic Properties of Metal-Complexes from N-t-Butyl-N-oxidanyl-2-amino-(nitronyl nitroxide) (2014)
  • Author(s): T. Furui, S. Suzuki, M. Kozaki, D. Shiomi, K. Sato, T. Takui, K. Okada, E. V. Tretyakov, S. E. Tolstikov, G. V. Romanenko, and V. I. Ovcharenko
  • Journal Title: Inorg. Chem. Volume: 53 Issue: 2 Pages: 802-809
  • DOI: 10.1021/ic4020898
  • Peer Reviewed
• [Journal Article] Synthesis and Magnetic Properties of Nitronyl Nitroxides with an Adjacent Chiral Group (2014)
  • Author(s): R. Tanimoto, S. Suzuki, M. Kozaki, D. Shiomi, K. Sato, T. Takui, and K. Okada
  • Journal Title: Bull. Chem. Soc. Jpn. Volume: 87 Issue: 2 Pages: 314-322
  • DOI: 10.1246/bcsj.20130264
  • NAID: 130004153274
  • Peer Reviewed
• [Journal Article] An ab initio MO study of heavy atom effects on the zero-field splitting tensors of high-spin nitrenes: How the spin-orbit contributions affected (2014)
  • Author(s): Kenji Sugisaki, Kazuo Toyota, Kazunobu Sato, Daisuke Shiomi, Masahiro Kitagawa, Takeji Takui
  • Journal Title: Phys. Chem. Chem. Phys Volume: 16 Issue: 19 Pages: 9171-9181
  • DOI: 10.1039/c4cp00822g
  • Peer Reviewed
• [Journal Article] Synthesis and Properties of a Bis[(nitronyl nitroxide)-2-ide radical anion]-Palladium Complex (2014)
  • Author(s): Suzuki, S.; Yokoi, H.; Kozaki, M.; Kanzaki, Y.; Shiomi, D.; Sato, K.; Takui, T.; Okada, K.
  • Journal Title: Eur. J. Inorg. Chem. Volume: 28 Issue: 28 Pages: 4740-4744
  • DOI: 10.1002/ejic.201402564
  • Peer Reviewed
• [Journal Article] Indeno[2,1-b]fluorene: A 20 pi electron hydrocarbon with extremely low energy light absorption (2013)
  • Author(s): A. Shimizu, R. Kishi, M. Nakano, D. Shiomi, K. Sato, T. Takui, I. Hisaki, M. Miyata, and Y. Tobe
  • Journal Title: Angew. Chem. Int. Ed. Volume: 52 Issue: 23 Pages: 6076-6079
  • DOI: 10.1002/anie.201302091
  • Peer Reviewed
• [Journal Article] Pulsed electron spin nutation spectroscopy for weakly exchange-coupled multi-spin molecular systems with nuclear hyperfine couplings: a general approach to bi- and triradicals and determination of their spin dipolar and exchange interactions (2013)
  • Author(s): K. Ayabe, K. Sato, S. Nakazawa, S. Nishida, K. Sugisaki, T. Ise, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, S. Suzuki, K. Okada, T. Takui
  • Journal Title: Mol. Phys Volume: 111 Issue: 18-19 Pages: 2767-2787
  • DOI: 10.1080/00268976.2013.811304
  • Peer Reviewed
• [Journal Article] Control of Exchange interactions in π Dimers of 6-Oxophenalenoxyl Neutral π Radicals: Spin-Density Distributions and Multicentered-Two-Electron Bonding Governed by Topological Symmetry and Substitution at the 8-Position (2013)
  • Author(s): 西田辰介・河井潤也・森口実紀・大場友裕・羽田直樹・福井晃三・冬広 明・塩見大輔・佐藤和信・工位武治・中筋一弘・森田 靖
  • Journal Title: Chemistry An European Journal Volume: 19 Issue: 36 Pages: 11904-11915
  • DOI: 10.1002/chem.201301783
  • Peer Reviewed
• [Presentation] 直結型開殻置換基をもつ安定ニトロキシド三重項分子の希釈単結晶ESR/ENDORスペクトル解析と磁気テンソルの高精度量子化学計算 (2015)
  • Author(s): 澤田駿，中澤重顕，河盛萌子，杉崎研司，佐藤和信，豊田和男，塩見大輔，尾向宏介，古井孝宜，倉津将人，鈴木修一，小嵜正敏，岡田惠次，工位武治
  • Organizer: 日本化学会第95春季年会
  • Place of Presentation: 日本大学（千葉県，船橋市）
  • Year and Date: 2015-03-26 – 2015-03-29
• [Presentation] ビイミダゾールを配位子とする高スピンレニウム単核金属錯体の単結晶ESRスペクトルと磁気テンソルの量子化学計算 (2015)
  • Author(s): 中川朋樹，山根健史，佐藤和信，杉崎研司，神崎祐貴，豊田和男，塩見大輔，吉澤真，田所誠，工位武治
  • Organizer: 日本化学会第95春季年会
  • Place of Presentation: 日本大学（千葉県，船橋市）
  • Year and Date: 2015-03-26 – 2015-03-29
• [Presentation] 単結晶ESRスペクトル法による混合原子価レニウム二核錯体の電気的・磁気的性質の解明 (2014)
  • Author(s): 山根健史，佐藤和信，巽俊輔，杉崎研司，神崎祐貴，豊田和男，塩見大輔，吉澤真，田所誠，工位武治
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学（広島県，東広島市）
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 修正したQRO法による零磁場分裂テンソルのスピン軌道項のDFT計算 (2014)
  • Author(s): 杉崎研司，豊田和男，佐藤和信，塩見大輔，北川勝浩，工位武治
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学（広島県，東広島市）
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 同位体標識安定有機ラジカルにおける電子-核スピン状態操作 (2014)
  • Author(s): 田中彩香・佐藤和信・吉野共広・西田辰介・中澤重顕・Rahimi Robabeh・豊田和男・塩見大輔・森田靖・北川勝浩・工位武治
  • Organizer: 日本化学会第94春季年会
  • Place of Presentation: 名古屋大学（名古屋市千種区）
• [Presentation] 分子力学法によるDNAスピンラベル系の分子構造とエネルギー解析 (2013)
  • Author(s): 山本悟，中澤重顕，杉崎研司，厚見宙志，前川健典，佐藤和信，豊田和男，塩見大輔，中谷和彦，北川勝浩，工位武治
  • Organizer: 第7回分子科学討論会
  • Place of Presentation: 京都テルサ（京都市南区）
• [Presentation] イミノニトロキシド－ニトロキシド基底三重項ジラジカルのESR二量子遷移のメカニズムの研究 (2013)
  • Author(s): 中澤重顕，河盛萌子，杉崎研司，豊田和夫，塩見大輔，佐藤和信，尾向宏介，古井孝宜，倉津将人，鈴木修一，小嵜正敏，岡田恵二，工位武治
  • Organizer: 第7回分子科学討論会
  • Place of Presentation: 京都テルサ（京都市南区）
• [Presentation] イミノニトロキシド－ニトロキシド基底三重項ジラジカルの希釈単結晶中の構造および２量子遷移のＥＳＲによる研究 (2013)
  • Author(s): 中澤重顕・河盛萌子・杉崎研司・豊田和男・塩見大輔・佐藤和信・尾向宏介・古井孝宜・倉津将人・鈴木修一・小嵜正敏・岡田惠次・工位武治
  • Organizer: 第52回電子スピンサイエンス学会年会
  • Place of Presentation: 大宮ソニックシティ（埼玉県さいたま市）