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2009 Fiscal Year Final Research Report

Multiphoton reduction of lanthanide ions and isotope enrichment by a high intensity laser

Research Project

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Project/Area Number 19350016
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionOsaka City University

Principal Investigator

NAKASHIMA Nobuaki  Osaka City University, 大学院・理学研究科, 教授 (00106163)

Co-Investigator(Kenkyū-buntansha) YATSUHASHI Tomoyuki  大阪市立大学, 大学院・理学研究科, 准教授 (70305613)
Project Period (FY) 2007 – 2009
Keywords多光子反応 / 同位体分離 / 反応制御
Research Abstract

Eu^<3+>→Eu^<2+> Reduction
Europium 3+ ions in methanol were found to be reduced to the corresponding 2+ ions upon irradiation with intense femtosecond laser pulses. The excitation wavelength of 800 nm was nonresonant with their electronic transitions of Eu^<3+>. It is notable that femtosecond white-light laser was generated when the reactions occurred. The mechanisms can be explained in terms of solvated electron formation followed by the reduction. The electron ejection in a focused beam in solution has been known to be accompanied by white-light laser.
Sm^<3+>→Sm^<2+> Reduction
Samarium 3+ ions in methanol were found to be reduced to the corresponding 2+ ions upon irradiation with intense femtosecond laser pulses. The reduction was observed at both pulses with central wavelengths of 403 nm converted from an 800-fs fundamental pulse and 800 nm with a duration of 43 fs. When the laser wavelength was tuned to the 4f-4f absorption at 403 nm corresponding to the ^6P_<3/2>←^6H_<5/2> transitio … More n, the the reduction occurred by multiphoton absorption presumably due to reaching the deep charge transfer state. In the case of excitation by 800-nm pulses of the fundamental wavelength of the Ti:sapphire laser, the reduction is considered to occur via solvent ionization followed by electron capture by Sm^<3+>. The product Sm^<2+> was detected by its fluorescence, which was observed for the first time in solution and showed a broad spectrum peak around 750 nm with a quantum yield of 0.050 in methanol in the presence of 15C5-ether.
Isotope Enrichment
The molar extinction coefficient of the ^6P_<3/2>←^6H_<5/2> transition is reportedly 10% different between ^<144>Sm^<3+> and ^<154>Sm^<3+> in solution : therefore, different isotope distributions among Samarium 2+ ions should be realized after the multiphoton reduction from Sm^<3+> to Sm^<2+>. This confirmation is currently in progress.
Preliminary results for Yb^<3+>→Yb^<2+> Reaction
Yb^<3+> has successfully reduced to Yb^<2+> by femtosecond pulse excitation with pulse duration of about 100 fs at three wavelengths of 800 nm, 970 nm, and 1930 nm. Yb^<3+> has the 4f-4f transition at 970 nm ; however, resonance enhancement for the formation of Yb^<2+> was not clear at this stage. Less

  • Research Products

    (41 results)

All 2010 2009 2008 2007 Other

All Journal Article (10 results) Presentation (28 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Ionization and fragmentation of alkylphenols by 0. 8-1. 5μm femtosecond laser pulses2009

    • Author(s)
      M. Tanaka, M. Kawaji, T. Yatsuhashi, N. Nakashima
    • Journal Title

      J. Phys. Chem. A 113(44)

      Pages: 12056-12062

  • [Journal Article] Ionization of Anthracene Followed by Fusion in the Solid Phase under Intense Nonresonant Femtosecond Laser Fields2009

    • Author(s)
      T. Yatsuhashi, N. Nakashima
    • Journal Title

      J. Phys. Chem. C 113(27)

      Pages: 11458-11463

  • [Journal Article] 高強度フェムト秒レーザーで拓く化学反応2009

    • Author(s)
      八ッ橋知幸
    • Journal Title

      化学と工業 62

      Pages: 637-639

  • [Journal Article] Chem. Phys. Lett2008

    • Author(s)
      D. Nishida, M. Kusaba, T. Yatsuhashi, N. Nakashima
    • Journal Title

      465(4-6)

      Pages: 238-240

  • [Journal Article] High-Order Multiphoton Fluorescence of Organic Molecules by Intense Femtosecond Laser Pulses2008

    • Author(s)
      T. Yatsuhashi, S. Ichikawa, Y. Shigematsu, N. Nakashima
    • Journal Title

      J. Am. Chem. Soc. (Communication) 130(46)

      Pages: 15264-15265

  • [Journal Article] Explosive Desorption and Fragmentation of Molecular Ion from Solid Fullerene by Intense Nonresonant Femtosecond Laser Pulses2008

    • Author(s)
      T. Yatsuhashi, N. Nakashima
    • Journal Title

      J. Phys. Chem. A 112(26)

      Pages: 5781-5785

  • [Journal Article] 強光子場下における有機分子のイオン化2008

    • Author(s)
      八ッ橋知幸, 中島信昭
    • Journal Title

      しょうとつ 5(2)

      Pages: 5-21

  • [Journal Article] Atomic-like Ionization and Fragmentation of a series of CH3-X (X: H, F, Cl, Br, I, and CN) by an Intense Femtosecond Laser2007

    • Author(s)
      M. Tanaka, M. Murakami, T. Yatsuhashi, N. Nakashima
    • Journal Title

      J. Chem. Phys 127(10)

      Pages: 6

  • [Journal Article] Anisotropic Bullet-like Emission of Terminal Ethynyl Fragment Ions: Ionization of Ethynylbenzene-d under Intense Femtosecond Laser Fields2007

    • Author(s)
      T. Yatsuhashi, M. Murakami, N. Nakashima
    • Journal Title

      J. Chem. Phys 126(19)

      Pages: 10

  • [Journal Article] Reduction of Sm^<3+> to Sm^<2+> by an intense femtosecond laser pulse in solution

    • Author(s)
      D. Nishida, E. Yamade, M. Kusaba, T. Yatsuhashi, N. Nakashima
    • Journal Title

      J. Phys. Chem (印刷中)

  • [Presentation] アルキルフェノール, アルキルベンゼンのフェムト秒パルスによるイオン化2010

    • Author(s)
      田中倫規, 川治摩里子, 八ッ橋知幸, 中島信昭
    • Organizer
      レーザー学会学術講演会第30回年次大会
    • Place of Presentation
      2/2-2/4(2010), 千里ライフサイエンスセンター大阪
    • Year and Date
      20100202-20100204
  • [Presentation] High-intensity Laser Chemistry2009

    • Author(s)
      N. Nakashima
    • Organizer
      The 6th Korea-Japan Symposium on Frontieer Photoscience (KJFP2009)
    • Place of Presentation
      Daejeon Korea
    • Year and Date
      20091030-20091103
  • [Presentation] Photoreactions of Benzene Derivatives by ArF Laser : Switching of Reaction Mechanisms Depending on the Number of Methyl Substituents2009

    • Author(s)
      N. Mitsubayashi, T. Yatsuhashi, N. Nakashima
    • Organizer
      The 6th Korea-Japan Symposium on Frontieer Photoscience (KJFP2009)
    • Place of Presentation
      Daejeon Korea
    • Year and Date
      20091030-20091103
  • [Presentation] 高強度フェムト秒レーザーによるハロゲン化フェニルアセチレンのクーロン爆発2009

    • Author(s)
      ポスター, 八ッ橋知幸, 古川智史, 中島信昭
    • Organizer
      分子科学討論会
    • Place of Presentation
      名古屋名古屋大学東山キャンパス
    • Year and Date
      20090921-20090924
  • [Presentation] 「サマリウムイオンの光還元」, ポスター2009

    • Author(s)
      西田大輔, 八ッ橋知幸, 中島信昭
    • Organizer
      分子科学討論会
    • Place of Presentation
      名古屋名古屋大学東山キャンパス
    • Year and Date
      20090921-20090924
  • [Presentation] 「フェムト秒レーザーパルスによるアントラセン光二量体の3光子分解反応」, ポスター2009

    • Author(s)
      八ッ橋知幸, 中萩有希, 岡本秀毅, 中島信昭
    • Organizer
      光化学討論会
    • Place of Presentation
      群馬桐生市市民文化会館
    • Year and Date
      20090916-20090918
  • [Presentation] ArFレーザーによるベンゼン誘導体の光反応:置換基数による反応機構のスイッチング2009

    • Author(s)
      ポスター, 三ツ林尚哉, 八ッ橋知幸, 中島信昭
    • Organizer
      光化学討論会
    • Place of Presentation
      群馬桐生市市民文化会館
    • Year and Date
      20090916-20090918
  • [Presentation] Ionization and Fragmentation of Organic Molecules by 0.8-1.5 ・m Femtosecond Laser Pulses2009

    • Author(s)
      N. Nakashima, M. Tanaka, M. Kawaji, T. Yatsuhashi
    • Organizer
      The 8th Pacific Rim Conference on Lasers and Electro-Optics
    • Place of Presentation
      Shanghai China(Invited)
    • Year and Date
      20090830-20090903
  • [Presentation] 非共鳴高強度フェムト秒レーザーによるアントラセン固体のイオン化と融合2009

    • Author(s)
      ポスター, 八ッ橋知幸, 中島信昭
    • Organizer
      第57回質量分析総合討論会
    • Place of Presentation
      大阪大阪国際交流センター
    • Year and Date
      20090513-20090515
  • [Presentation] 高強度フェムト秒レーザーで拓く化学反応:気相から固相, 液相へ2009

    • Author(s)
      八ッ橋知幸
    • Organizer
      第89日本化学会春期年会
    • Place of Presentation
      船橋日本大学
    • Year and Date
      20090327-20090330
  • [Presentation] 溶液中におけるSm2+クラウンエーテル化合物の光学特性2009

    • Author(s)
      ポスター, 草場光博, 山出江里子, 西田大輔, 八ッ橋知幸
    • Organizer
      中島信昭, 第89日本化学会春期年会
    • Place of Presentation
      船橋日本大学
    • Year and Date
      20090327-20090330
  • [Presentation] フェムト秒レーザーによるランタニドイオンの光還元2009

    • Author(s)
      西田大輔、山出江里子、草場光博、八ッ橋知幸、中島信昭
    • Organizer
      第89日本化学会春期年会
    • Place of Presentation
      船橋日本大学
    • Year and Date
      20090327-20090330
  • [Presentation] Lanthanide Ion Reduction by an Intense Femtosecond Laser Pulse2009

    • Author(s)
      N. Nakashima
    • Organizer
      237th ACS National Meeting March
    • Place of Presentation
      Salt Lake City USA
    • Year and Date
      20090323-20090325
  • [Presentation] Fusion of Molecules in the Solid and Multiphoton Chemistry in Solution by Femtosecond Laser Pulses2009

    • Author(s)
      N. Nakashima
    • Organizer
      COAST/CORAL Symposium on Ultrafast Intense Laser Science
    • Place of Presentation
      Karuizawa, Japan(Invited)
    • Year and Date
      20090312-20090314
  • [Presentation] 高強度レーザーによる有機分子のイオン化と制御2009

    • Author(s)
      八ッ橋知幸
    • Organizer
      第56回イオン反応研究会
    • Place of Presentation
      大阪府立大学大阪
    • Year and Date
      2009-10-24
  • [Presentation] 近赤外高次多光子レーザー顕微鏡の開発2009

    • Author(s)
      八ッ橋知幸
    • Organizer
      大阪市立大学(OCU)ニューテクガイド2009
    • Place of Presentation
      大阪大阪産業創造館
    • Year and Date
      2009-01-14
  • [Presentation] 赤外フェムト秒レーザーパルスによるランタニドイオンの光還元2008

    • Author(s)
      西田大輔、山出江里子、草場光博(大阪産大)、八ッ橋知幸, 中島信昭
    • Organizer
      分子科学討論会
    • Place of Presentation
      九州大学
    • Year and Date
      20080924-20080927
  • [Presentation] 高強度レーザー化学-イオン化と多光子反応-2008

    • Author(s)
      中島信昭
    • Organizer
      光化学討論会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      20080911-20080913
  • [Presentation] 高強度フェムト秒レーザーによる芳香族固体のイオン化と反応2008

    • Author(s)
      八ッ橋知幸, 中島信昭
    • Organizer
      光化学討論会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      20080911-20080913
  • [Presentation] Lanthanide Ion Reduction by Intense Femtosecond Laser Pulses2008

    • Author(s)
      N. Nakashima, T. Yatsuhashi, M. Kusaba, D. Nishida
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry
    • Place of Presentation
      Tokyo Japan(Oral)
    • Year and Date
      20080829-20080901
  • [Presentation] Beyond Two-photon Fluorescence: High-order Multiphoton Fluorescence of Organic Molecules by Intense Femtosecond Laser Pulses2008

    • Author(s)
      T. Yatsuhashi, N. Nakashima
    • Organizer
      22nd IUPAC Symposium on Photochemistry
    • Place of Presentation
      Gothenburg, Sweden
    • Year and Date
      20080728-20080801
  • [Presentation] Direct Ionization Desorption of Fullerene by Intense Femtosecond Laser Fields2008

    • Author(s)
      T. Yatsuhashi, N. Nakashima
    • Organizer
      The 6th Asia Pacific Laser Symposium (APLS2008)
    • Place of Presentation
      Nagoya Japan(Oral)
    • Year and Date
      20080130-20080201
  • [Presentation] High-order Multiphoton Fluorescence of Organic Molecules in Solution utilizing Intense Femtosecond Laser Pulses2008

    • Author(s)
      T. Yatsuhashi, N. Nakashima
    • Organizer
      COAST/CORAL Winter School on Advanced Laser Science
    • Place of Presentation
      Tokyo, Echigoyuzawa Japan
    • Year and Date
      20080112-20080118
  • [Presentation] Organic Molecules under Intense Femtosecond Laser Fields2007

    • Author(s)
      T. Yatsuhashi, N. Nakashima
    • Organizer
      2007 Korean-Japan Bilateral Symposium on Frontier Photoscience
    • Place of Presentation
      慶州大韓民国(Invited)
    • Year and Date
      20071122-20071126
  • [Presentation] Intact Molecular Ion Formation and Multiphoton Absorption in High Intensity Laser Fields2007

    • Author(s)
      N. Nakashima
    • Organizer
      XXIII International Conference on Photochemistry
    • Place of Presentation
      Cologne Germany(Invited)
    • Year and Date
      20070729-20070803
  • [Presentation] Excitation Wavelength Effects on Intact Molecular Formation by a High Intensity Femtosecond Laser2007

    • Author(s)
      M. Tanaka, M. Murakami, T. Yatsuhashi, N. Nakashima
    • Organizer
      XXIII International Conference on Photochemistry
    • Place of Presentation
      Cologne Germany(Poster)
    • Year and Date
      20070729-20070803
  • [Presentation] Ionization and Multiphoton Chemistry of Organic Molecules and f-elements Ions2007

    • Author(s)
      N. Nakashima
    • Organizer
      3rd Asian Symposium of Intense Laser Science
    • Place of Presentation
      Cameron Highlands, Malaysia(Invited)
    • Year and Date
      20070702-20070705
  • [Presentation] Organic Molecules under Intense Femtosecond Laser Fields: Ionization and Time-resolved Coherent Spectroscopy2007

    • Author(s)
      T. Yatsuhashi
    • Organizer
      International Symposium on Molecular Science of Ultrafast Electronic Dynamics
    • Place of Presentation
      Sendai Japan(Invited)
    • Year and Date
      20070518-20070519
  • [Book] 環境と化学2009

    • Author(s)
      中島信昭
    • Total Pages
      61-85
    • Publisher
      東京化学同人
  • [Remarks]

    • URL

      http://www.sci.osaka-cu.ac.jp/chem/laser/laser.html;

  • [Remarks]

    • URL

      http://www.toyotariken.jp/

URL: 

Published: 2011-06-18   Modified: 2016-04-21  

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