Electron Spin Resonance Chemical Exchange Saturation Transfer Spectroscopy using Nitrogen Encapsulated Fullerene.

2012 Fiscal Year Final Research Report

• Project/Area Number: 22350011
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Kyoto University
• Principal Investigator: KATO Tatsuhisa 京都大学, 高等教育研究開発推進機構, 教授 (80175702)
• Project Period (FY): 2010 – 2012
• Keywords: スピン化学

Research Abstract

N@C60 molecule easily exhibits a saturation phenomenon in ESR measurement, because of its extraordinarily sharp ESR line. N@C60 molecule is a good candidate for the magnetic probe of the ESR chemical exchange saturation transfer spectroscopy. In order to get a water soluble N@C60 magnetic probe, we synthesized the encapsulated complex of N@C60 with γ-cyclodextrin (N@C60・γ-CD). Then we succeeded to measure the ESR signal of the hydrophobic N@C60 in water. And we determined the relaxation time and the fine structure constants of N@C60 with γ-CD in water by measuring the concentration, and temperature dependence of ESR spectrum. We also succeeded to get the X-ray diffraction data of the single crystal N@C60・γ-CD. From the precise information of the N@C60・γ-CD molecular structure, we could determine the exact value of magnetic dipole interaction between electron and proton nuclear spins. We could confirm that the N@C60・γ-CD complex is the best candidate for the magnetic probe of the ESR chemical exchange saturation transfer spectroscopy even in water.

Research Products

• [Journal Article] Meta-Para-Linked Octaaza [18]cyclophanes and Their Polycationic States (2013)
  • Author(s): D. Sakamaki, A. Ito, K. Furukawa, T. Kato and K. Tanaka
  • Journal Title: J. Org. Chem Volume: 78 Pages: 2947 -2956
  • DOI: DOI:10.1021/jo3026884
  • Peer Reviewed
• [Journal Article] X-ray observation of a helium atom and placing a nitrogen atom inside He@C60 and He@C70 (2013)
  • Author(s): Y. Morinaka, S. Sato, A. Wakamiya, H. Nikawa, N. Mizorogi. F. Tanabe, M. Murata, K. Komatsu, K. Furukawa, T. Kato, S. Nagase, T. Akasaka and Y. Murata
  • Journal Title: Nature Communication Volume: 4 Pages: 1554
  • DOI: DOI:10.1038/ncomms2574
  • Peer Reviewed
• [Journal Article] N@C60 as a structural probe for fullerene nanomaterials (2012)
  • Author(s): T. Wakahara, T. Kato, K. Miyazawa and W. Harneit
  • Journal Title: Carbon Volume: 50 Pages: 1699-1712
  • DOI: DOI:10.1016/j.carbon.2011.11.046
  • Peer Reviewed
• [Journal Article] 1,3,5-Benzenetriamine Double- and Triple-Decker Molecules (2012)
  • Author(s): D. Sakamaki, A. Ito, K. Tanaka, K. Furukawa, T. Kato and M. Shiro
  • Journal Title: Angew. Chem. Int. Ed Volume: 51 Pages: 8281-8285
  • DOI: DOI:10.1002/anie.201203451)
  • Peer Reviewed
• [Journal Article] Switchable Inetrmolecular Communication in a Four-Fold Rotaxane (2012)
  • Author(s): Y. Yamada, M. Okamoto, K. Furukawa, T. Kato and K. Tanaka
  • Journal Title: Angew. Chem. Int. Ed Volume: 51 Pages: 709-713
  • DOI: DOI:10.1002/anie.201107104
  • Peer Reviewed
• [Journal Article] Photoinduced Reaction of Hydrogen-End-Capped Polyynes with Iodine Molecules (2011)
  • Author(s): Y. Wada, T. Wakabayashi and T. Kato
  • Journal Title: J. Phys.Chem. B Volume: 115 Pages: 8439-8445
  • DOI: DOI:10.1021/jp203074r
  • Peer Reviewed
• [Journal Article] Gd2@C79N:Isolation, Characterization, and Monoadduct Formation of a Very Stable Heterofullerene with a Magnetic Spin State of S = 15/2 (2011)
  • Author(s): W. Fu, J. Zhang, T. Fuhrer, H. Champion, K. Furukawa, T. Kato, J. E. Mahaney, B. G. Burke, K. A. Williams, K. Walker, C. Dixon, J. Ge, C. Shu, K. Harich and H. C. Dorn
  • Journal Title: J. Am. Chem. Soc Volume: 133 Pages: 9741-9750
  • DOI: DOI:10.1021/ja202011u
  • Peer Reviewed
• [Journal Article] Ferromagnetic Spin Coupling between Endohedral Metallofullerene La@C82and a Cyclodimeric Copper Porphyrin upon Inclusion (2011)
  • Author(s): F. Hajjaj, K. Tashiro, H. Nikawa, N. Mizorogi, T. Akasaka, S. Nagase, K. Furukawa, T. Kato and T. Aida
  • Journal Title: J. Am. Chem. Soc Volume: 133 Pages: 9290-9292
  • DOI: DOI:10.1021/ja203491s
  • Peer Reviewed
• [Presentation] 水溶液中のGd@C82-PEG-b-PAMA錯体パーティクルが示す磁性 (2013)
  • Author(s): 相澤俊博,堀口諭吉,長崎幸夫,篠原久典,加藤立久
  • Organizer: 第44回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • Place of Presentation: 東京大学
  • Year and Date: 2013-03-11
• [Presentation] [n]CycloparaphenyleneカチオンラジカルのESR測定 (2013)
  • Author(s): 香山貴彦,茅原栄一,山子茂,加藤立久
  • Organizer: 第44回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • Place of Presentation: 東京大学
  • Year and Date: 2013-03-11
• [Presentation] 溶液中で[10]Cycloparaphenyleneと共存するN@C60のESR測定 (2013)
  • Author(s): 岡本光弘,岩本貴寛,山子茂,加藤立久
  • Organizer: 第44回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • Place of Presentation: 東京大学
  • Year and Date: 2013-03-11
• [Presentation] ヘリウム内包フラーレンの有機合成ならびに2つの異種原子を内包したフラーレンの発生 (2013)
  • Author(s): 森中裕太,佐藤悟,若宮淳志,二川秀史,溝呂木直美,田邊史行,村田理尚,小松紘一,古川貢,加藤立久, 永瀬茂,赤阪健,村田靖次郎
  • Organizer: 第44回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • Place of Presentation: 東京大学
  • Year and Date: 2013-03-11
• [Presentation] N@C60ガンマシクロデキストリン包摂体水溶液のESR測定 (2012)
  • Author(s): 岡本光弘,高橋弘樹,河野正規,金折賢二,古川貢,加藤立久
  • Organizer: 第42回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • Place of Presentation: 東京大学
  • Year and Date: 2012-03-06
• [Presentation] La2@C80-C3N3Ph2とLa2@C80アニオンのESRスペクトル (2012)
  • Author(s): 相澤俊博,赤阪健,栗原広樹,加藤立久
  • Organizer: 第42回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • Place of Presentation: 東京大学
  • Year and Date: 2012-03-06