Searching for new stable units of transition metal composite clusters by isomer-separation method

• Project/Area Number: 22750005
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Physical chemistry
• Research Institution: Tohoku University
• Principal Investigator: KOYASU Kiichirou 東北大学, 大学院・理学研究科, 助教 (20508593)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: クラスター / 遷移金属酸化物 / 質量分析法 / イオン移動度分析法 / アニール / 異性体 / 炭素 / ケイ素 / 遷移金属 / 酸化物 / 構造変化

Research Abstract

In this study, isomer ions of transition metal composite clusters, (ZnO)n+ and (CoO)n+ were separated by using ion mobility spectrometry, and their structures were assigned. We have thus investigated size dependences on their structural transitions and annealing effects. We also have investigated isomer-dependent dissociations and chemical reactions of isomers of carbon and silicon cluster ions. We have observed isomer-dependent fragment ion distributions and have successfully determined reaction rate constants for oxidation and deuterations of separated isomer ions.

Research Products

• [Journal Article] Isomer-separated photodissociation of large sized silicon and carbon cluster ions: Drift tube experiment combined with a tandem reflectron mass spectrometer forSi_<24>^+ - Si_<27>^+ and C_<32>^+ - C_<38>^+ (2013)
  • Author(s): R. Moriyama, T. Ohtaki, J. Hosoya, K. Koyasu, and F. Misaizu
  • Journal Title: Eur. Phys. J. D Volume: 67 Issue: 1 Pages: 13-13
  • DOI: 10.1140/epjd/e2012-30535-0
  • Peer Reviewed
• [Journal Article] Isomer-resolved dissociation of small carbon cluster cations, C7+- C10+ (2012)
  • Author(s): K.Koyasu, T.Ohtaki, N.Hori, F.Misaizu
  • Journal Title: Chemical Physics Letters Volume: 523 Pages: 54-59
  • DOI: 10.1016/j.cplett.2011.12.032
  • Peer Reviewed
• [Journal Article] Anion photoelectron spectroscopy of germanium and tin clusters containing a transition-or lanthanide-metal atom;MGe_n- (n = 8-20) and MS_n- (n = 15-17) (M= Sc-V, Y-Nb, and Lu-Ta) (2012)
  • Author(s): J. Atobe, K. Koyasu, S. Furuse, and A. Nakajima
  • Journal Title: Phys. Chem. Chem. Phys Volume: 14 Issue: 26 Pages: 9403-9410
  • DOI: 10.1039/c2cp23247b
  • Peer Reviewed
• [Journal Article] Temperature dependence of ion mobility of carbon cluster cations : Intermediate region connecting low- and high-field conditions (2011)
  • Author(s): K.Koyasu, T.Ohtaki, F.Misaizu
  • Journal Title: Bull.Chem.Soc.Jpn. Volume: 84 Issue: 12 Pages: 1342-1346
  • DOI: 10.1246/bcsj.20110238
  • NAID: 130004152848
  • Peer Reviewed
• [Journal Article] Time-resolved photoelectron spectroscopyof Al_3O_3-: photoisomerization versus photofragmentation (2011)
  • Author(s): K. Koyasu, C. Braun, S. Proch, and G. Gantefor
  • Journal Title: Appl. Phys. A Volume: 102 Issue: 3 Pages: 615-620
  • DOI: 10.1007/s00339-010-6160-8
  • Peer Reviewed
• [Journal Article] The metal-semiconductor transition monitored by excited state lifetimes of Al_4O_m- clusters (2010)
  • Author(s): K. Koyasu, C. Braun, S. Proch, and G. Gantefor
  • Journal Title: Appl. Phys. A Volume: 100 Issue: 2 Pages: 431-436
  • DOI: 10.1007/s00339-010-5855-1
  • Peer Reviewed
• [Journal Article] The metal-semiconductor transition monitored by excited state lifetimes of Al_4O_m^- clusters (2010)
  • Author(s): 小安喜一郎, C.Braun, S.Proch, G.Gantefor
  • Journal Title: Appl.Phys.A Volume: 100 Pages: 431-436
  • Peer Reviewed
• [Presentation] 炭素およびケイ素クラスターイオン分離異性体の紫外光解離反応 (2013)
  • Author(s): 小安喜一郎,森山遼一,大滝智広,細谷淳,美齊津文典
  • Organizer: 日本化学会第94春季年会
  • Place of Presentation: 滋賀
  • Year and Date: 2013-03-25
• [Presentation] Isomer-selected photodissociation of carbon and silicon cluster ions (2013)
  • Author(s): K. Koyasu, R. Moriyama, T. Ohtaki, J. Hosoya, and F. Misaizu
  • Organizer: 日本化学会第94春季年会・アジア国際シンポジウム 滋賀
  • Year and Date: 2013-03-24
• [Presentation] 異性体選別した炭素クラスターイオンの酸素および重水素との反応 (2012)
  • Author(s): 小安喜一郎,大滝智広,高橋開人,美齊津文典
  • Organizer: 分子科学討論会2012
  • Place of Presentation: 東京
  • Year and Date: 2012-09-20
• [Presentation] Isomer-selected photodissociation of carbon and silicon cluster ions with ion mobility mass spectrometry using a double reflectron time-of-flight mass spectrometer (2012)
  • Author(s): 小安 喜一郎,森山 遼一,大滝 智広,細谷 淳,美齊津 文典
  • Organizer: 19th International Mass Spectrometry Conference
  • Place of Presentation: 京都
  • Year and Date: 2012-09-17
• [Presentation] Dissociative adsorption of oxygen and deuterium on separated isomers of carbon cluster ions (2012)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: 16th International Symposium on Small Particles and Inorganic Clusters
  • Place of Presentation: Lueven, Bergium
  • Year and Date: 2012-07-12
• [Presentation] Chemical reactions of isomer-selected carbon cluster ions with O2 and D2 molecules (2012)
  • Author(s): 小安 喜一郎,大滝 智広,美齊津 文典
  • Organizer: 第28回 化学反応討論会
  • Place of Presentation: 福岡
  • Year and Date: 2012-06-06
• [Presentation] Temperature dependences of oxidation reactions of isomer-separated carbon cluster cations (2012)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: Gordon Research Conference on Molecular and Ionic Clusters
  • Place of Presentation: Ventura CA, USA (Oral, hot topic talk)
  • Year and Date: 2012-02-02
• [Presentation] Temperature dependences of oxidation reactions of isomer-separated carbon cluster cations (2012)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: The Fifth International Symposium "Atomic Cluster Collisions"
  • Place of Presentation: ベンチュラ(アメリカ)
  • Year and Date: 2012-02-02
• [Presentation] Oxidation reaction kinetics of isomer-selected carbon cluster ions (2011)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: International Symposium on Clusters and Nano-structures
  • Place of Presentation: Richmond VA, USA
  • Year and Date: 2011-11-09
• [Presentation] 炭素クラスター異性体イオンの酸化反応 (2011)
  • Author(s): 小安喜一郎,大滝智広,美齊津文典
  • Organizer: 分子科学討論会2011
  • Place of Presentation: 札幌
  • Year and Date: 2011-09-22
• [Presentation] Isomer-specific Reactivity of Small Carbon Cluster Cations (2011)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: 20th Annual Conference on Ion Mobility Spectrometry Edinburgh Scotland
  • Place of Presentation: Oral, hot topic talk
  • Year and Date: 2011-07-28
• [Presentation] Isomer-specific Reactivity of Small Carbon Cluster Cations (2011)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: 20th Annual Conference on Ion Mobility Spectrometry
  • Place of Presentation: エジンベア(スコットランド)
  • Year and Date: 2011-07-28
• [Presentation] Collisional oxidation and dissociation of isomer-separated carbon cluster ions (2011)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: The 5th International symposium "Atomic Cluster Collisions"
  • Place of Presentation: Berlin Germany
  • Year and Date: 2011-07-22
• [Presentation] Collisional oxidation and dissociation of isomer-separated carbon clusterions (2011)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: The Fifth International Symposium "Atomic Cluster Collisions"
  • Place of Presentation: ベルリン(ドイツ)
  • Year and Date: 2011-07-22
• [Presentation] Isomer Separation with Ion Mobility Spectrometry and Dissociation of the Selected Isomer (2010)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: New Horizons of Cluster Chemistry
  • Place of Presentation: Kobe
  • Year and Date: 2010-10-09
• [Presentation] Isomer Separation with Ion Mobility Spectrometry and Dissociation of the Selected Isomer (2010)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: New Horizons of Cluster Chemistry
  • Place of Presentation: 神戸大学
  • Year and Date: 2010-10-09
• [Presentation] 異性体分離分光のための二重リフレクトロン型イオン移動度‐質量分析装置の開発 (2010)
  • Author(s): 小安喜一郎,大滝智広,美齊津文典
  • Organizer: 分子科学討論会2010
  • Place of Presentation: 大阪
  • Year and Date: 2010-09-15
• [Presentation] 異性体分離分光のための二重リフレクトロン型イオン移動度-質量分析装置の開発 (2010)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: 分子科学討論会2010
  • Place of Presentation: 大阪大学
  • Year and Date: 2010-09-15
• [Presentation] Temperature dependence of ion mobility of small carbon cluster cations (2010)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: 第26回 化学反応討論会
  • Place of Presentation: 広島大学
  • Year and Date: 2010-06-03
• [Presentation] 炭素クラスターイオンの異性体選択光解離と冷却効果 (2010)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: ナノ学会 第8回大会
  • Place of Presentation: 岡崎コンファレンスセンター
  • Year and Date: 2010-05-14
• [Presentation] Temperature dependence of ion mobility of small carbon cluster cations (2010)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: XV International Symposium on Small Particles and Inorganic Clusters
  • Place of Presentation: Oaxaca Mexico
• [Presentation] Isomer-selected dissociation of small carbon cluster cations (2010)
  • Author(s): K. Koyasu, T. Ohtaki, and F. Misaizu
  • Organizer: XV International Symposium on Small Particles and Inorganic Clusters
  • Place of Presentation: Oaxaca Mexico
• [Presentation] Isomer-selected dissociation of small carbon cluster cations (2010)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: XV International Symposium on Small Particles and Inorganic Clusters
  • Place of Presentation: オアハカ,メキシコ
• [Presentation] Temperature dependence of ion mobility of small carbon cluster cations (2010)
  • Author(s): 小安喜一郎, 大滝智広, 美齊津文典
  • Organizer: XV International Symposium on Small Particles and Inorganic Clusters
  • Place of Presentation: オアハカ,メキシコ
• [Presentation] Chemical reactions of isomer-selected carbon cluster ions with O2 and D2 molecules
  • Author(s): 小安 喜一郎，大滝 智広， 美齊津 文典
  • Organizer: 第28回 化学反応討論会
  • Place of Presentation: 九州大学（福岡市）
• [Presentation] Dissociative adsorption of oxygen and deuterium on separated isomers of carbon cluster ions
  • Author(s): 小安 喜一郎，大滝 智広， 美齊津 文典
  • Organizer: 16th International Symposium on Small Particles and Inorganic Clusters
  • Place of Presentation: ルーベン大学 （ベルギー・ルーベン市）
• [Presentation] Isomer-selected photodissociation of carbon and silicon cluster ions with ion mobility mass spectrometry using a double reflectron time-of-flight mass spectrometer
  • Author(s): 小安 喜一郎，森山 遼一，大滝 智広，細谷 淳，美齊津 文典
  • Organizer: 19th International Mass Spectrometry Conference
  • Place of Presentation: 京都国際会館（京都府）
  • Invited
• [Presentation] 異性体選別した炭素クラスターイオンの酸素および重水素との反応
  • Author(s): 小安 喜一郎，大滝 智広， 高橋 開人，美齊津 文典
  • Organizer: 分子科学討論会2012
  • Place of Presentation: 東京大学（東京都）
• [Presentation] Isomer-selected photodissociation of carbon and silicon cluster ions
  • Author(s): 小安 喜一郎，森山 遼一，大滝 智広，細谷 淳，美齊津 文典
  • Organizer: 日本化学会第94春季年会・アジア国際シンポジウム
  • Place of Presentation: 立命館大学（滋賀県）
  • Invited
• [Presentation] 炭素およびケイ素クラスターイオン分離異性体の紫外光解離反応
  • Author(s): 小安 喜一郎，森山 遼一，大滝 智広，細谷 淳，美齊津 文典
  • Organizer: 日本化学会第94春季年会
  • Place of Presentation: 立命館大学（滋賀県）
• [Remarks]
  • URL: http://www.chem.s.u-tokyo.ac.jp/users/chemreact/member_Koyasu.html
• [Patent(Industrial Property Rights)] TOF 質量分析による HIPIMS スパッタ源 のプラズマ解析方法及びその装置 (2010)
  • Inventor(s): 塚本恵三,美齊津文典,小安喜一郎
  • Industrial Property Rights Holder: (株)アヤボ,東北大学
  • Filing Date: 2010-10-29
• [Patent(Industrial Property Rights)] TOF質量分析によるHIPIMSスパッタ源のプラズマ解析方法及びその装置 (2010)
  • Inventor(s): 塚本恵三, 美齊津文典, 小安喜一郎
  • Industrial Property Rights Holder: (株)アヤボ東北大学
  • Industrial Property Number: 2010-243309
  • Filing Date: 2010-10-29