1999 Fiscal Year Annual Research Report

レーザー光解・多次元質量分析法の開拓

Research Project

Project/Area Number	10554028
Research Institution	TOHOKU UNIVERSITY
Principal Investigator	三上直彦東北大学, 大学院・理学研究科, 教授 (70004447)
Co-Investigator(Kenkyū-buntansha)	安部直道富士通株式会社, デバイス開発部, 開発部・部長(研究職) 藤井朱鳥東北大学, 大学院・理学研究科, 助手 (50218963)
Keywords	イオントラップ法 / イオン種の分光 / 質量選別レーザー分光
Research Abstract	高分解能質量分析法は、近年急速に発展しつつある高度化学分析技術のひとつであるが、従来の質量分析法の限界は対象となる化合物の内部構造の差異(異性体や準安定種)の区別ができないことである。次世代の質量分析法としてのもう一つの発展方向は、対象イオン種の内部状態の分別を可能にする方法の開拓にある。本研究では、次世代の新しい化学分析機器開発を念頭にして、イオン種の内部状態を分別できる質量分析装置を開発し、新しい化学分析法として確立することを目指した。超音速分子線源から発生した分子線を、可視紫外光波長可変レーザーにより光イオン化し、高密度イオン種の生成を行う。目的イオン種を質量数1以下の分解能で分離選別するため、高性能マス分離器(第1マスフィルター)を設置し、イオントラップ部へ目的イオンを導入し、限定空間領域内に捕捉する装置を開発した。更に、捕捉イオン種を光励起して得られる光解離生成イオン種を第2マスフィルターによって分別検出する分光法を採用して、目的イオン種の電子振動回転準位の分光スペクトル計測法を確立し、従来のMS/MS質量分析法では得られない光励起関数の計測次元を付与する。平成10年度では、超音速分子線で冷却した芳香族化合物イオン種の新しい赤外分光法を開発し、特に、新しいタイプの分子内水素結合に関する研究を行い、その成果を米国化学会誌、米国物理学会誌などに公表した。平成11年度では、芳香族化合物イオン種のCH振動領域に関する分光研究を行い、その成果を米国化学会誌、米国物理学会誌などに公表した。

Research Products

(21 results)

All Other

All Publications (21 results)

[Publications] Takayuki Ebata: "Vibrational spectroscopy of small-size hydrogen-bonded clusters and their ions"Int. Rev. Phys. Chem.. 17. 331-361 (1998)
[Publications] Takayuki Ebata: "Discrimination of s-cis/s-trans conformers of jet-cooled methyl cinnamate by population labelling spectoroscopy,"Res. Chem. Intermed.. 3-4. 803-812 (1998)
[Publications] Takayuki Ebata: "Mode-dependent anharmonic coupling between OH stretching and intermolecular vibrations of the hydrogen-bonded clusters of phenol"Chem. Phys.. 231. 199-204 (1998)
[Publications] Akira Mitsuzuka: "Infrared Spectroscopy of Intramolecular Hydrogen-Bonded OH Stretching Vibrations in Jet-Cooled Methyl Salicylate and its Clusters"J. Phys. Chem. A. 102. 9779-9784 (1998)
[Publications] Yuko Tajima: "Microscopic Solvation Effects on Si-Si Bond Cleavage Reactions of Cluster Cation Radicals of (p-Cyanophenyl ) pentamethyldisilane with Hydroxylic Molecules,"Chem. Lett.. 415-416 (1998)
[Publications] Toshihiko Maeyama: "Photodestruction Spectroscopy of carbon disulfide cluster anions (CS_2)_n, n= I -4: Evidence for the dimer core structure and competitive reactions of the dimer anion"J. Chem. Phys.. 108. 1368-1376 (1998)
[Publications] Akihiro Okazaki: "Predissociation of the Rydberg states of CO: State specific predissociation to the triplet channel,"J. Chem. Phys. 108. 1765-1768 (1998)
[Publications] Haruki Ishikawa: "Spectroscopic investigation of the generation of "isomerization"states: Eigenvector analysis of the bend-CP stretch po]yad,"J. Chem. Phys.. 109. 492-503 (1998)
[Publications] Yoshiteru Matsumoto: "Characterizations of the hydrogen-bond structures of 2-naphthol-(H_2O) _n. (n=0-3 and 5) clusters by infrared-ultraviolet double-resonance spectroscopy"J. Chem. Phys.. 109. 6303-6311 (1998)
[Publications] Asuka Fujii: "A new type of intranolecular hydrogen bonding: Hydroxyl-Methyl interactions in the o-ctesol cation"J. Am. Chem. Soc.. 120. 13256-13257 (1998)
[Publications] Eiji Fujimaki: "Autoionization-detected infrared spectoroscopy of intramolecular hydrogen bonds in aromatic cations. l. Principle and appiication to flurophenol and methoxyphenol"J. Chem. Phys.. 110. 4238-4247 (1999)
[Publications] Nikhil Guchhait: "Discrimination of Rotamers of Aryl Alcohol Homologues by Infrared-Uitraviolet Double-Resonance Spectroscopy in a Supersonic jet,"J. Am. Chem. Soc.. 121. 5705-5711 (1999)
[Publications] Haruki Ishikawa: "Observation of the CH^v excited vibrational levels in the A^1 A"state of HCP by IR-UV double resonance spectroscopy,"J. Mol. Spec.. 194. 52-60 (1999)
[Publications] Haruki Ishikawa: "Intracluster lon-Mo]ecule Reactions of Dimer Cations of Phenylsilanes"J. Phys. Chem. A. 103. 2007-2012 (1999)
[Publications] Yoshiyuki Matsuda: "Vibrational spectroscopy of 2-pyridone and its clusters clusters in supersonic jets : Structures of the clusters as revealed by characteristic shifts of the NH and C=0 bands"J. Chem. Phys.. 110. 8397-8407 (1999)
[Publications] Seiichi Ishikawa: "Structures and the vibrational relaxations of size-selected benzonitrile -(H_2O)_n=1 -3 and -(CH_3OH)_n= I -3 clusters studied by fluorescence detected Raman and infrared spectroscopies,"J. Chem. Phys.. 110. 9504-9515 (1999)
[Publications] Asuka Fujii: "Autoionization-detected infrared spectroscopy of jet-cooled aromatic cations in the gas phase: CH stretching vibrations of isolated p-ethylphenol cations,"Chem. Phys. Lett.. 303. 289-294 (1999)
[Publications] Asuka Fujii: "Infrared spectroscopy of the phenol-N_2 cluster in S_0and D_0: Direct evidence of the in- plane structure of the cluster"J. Chem. Phys.. 110. 11125-11128 (1999)
[Publications] Haruki Ishikawa: "Observation of the highly excited vibrational levls of HCP: Application of IR-UV-SEP trip[e resonance spectroscopy,"Chem. Lett.. 941-942 (1999)
[Publications] Nikhil Guchhait: "Structures of hydrogen-bonded clusters of benzyl alcohol with water investigated by infrared-ultraviolet double resonance spectroscopy in supersonic jet"J. Chem. Phys.. 111. 8438-8447 (1999)
[Publications] Eiji Fujimaki: "Autoionization-detected infrared spectoroscopy of intramolecular hydrogen bonds in aromatic cations. II Unconventional intramolecular hydrogen bonds,"J. Chem. Phys.. 112. 137-147 (2000)

1999 Fiscal Year Annual Research Report

レーザー光解・多次元質量分析法の開拓

Principal Investigator

三上 直彦 東北大学, 大学院・理学研究科, 教授 (70004447)

Research Products

[Publications] Takayuki Ebata: "Vibrational spectroscopy of small-size hydrogen-bonded clusters and their ions"Int. Rev. Phys. Chem.. 17. 331-361 (1998)

[Publications] Takayuki Ebata: "Discrimination of s-cis/s-trans conformers of jet-cooled methyl cinnamate by population labelling spectoroscopy,"Res. Chem. Intermed.. 3-4. 803-812 (1998)

[Publications] Takayuki Ebata: "Mode-dependent anharmonic coupling between OH stretching and intermolecular vibrations of the hydrogen-bonded clusters of phenol"Chem. Phys.. 231. 199-204 (1998)

[Publications] Akira Mitsuzuka: "Infrared Spectroscopy of Intramolecular Hydrogen-Bonded OH Stretching Vibrations in Jet-Cooled Methyl Salicylate and its Clusters"J. Phys. Chem. A. 102. 9779-9784 (1998)

[Publications] Yuko Tajima: "Microscopic Solvation Effects on Si-Si Bond Cleavage Reactions of Cluster Cation Radicals of (p-Cyanophenyl ) pentamethyldisilane with Hydroxylic Molecules,"Chem. Lett.. 415-416 (1998)

[Publications] Toshihiko Maeyama: "Photodestruction Spectroscopy of carbon disulfide cluster anions (CS_2)_n, n= I -4: Evidence for the dimer core structure and competitive reactions of the dimer anion"J. Chem. Phys.. 108. 1368-1376 (1998)

[Publications] Akihiro Okazaki: "Predissociation of the Rydberg states of CO: State specific predissociation to the triplet channel,"J. Chem. Phys. 108. 1765-1768 (1998)

[Publications] Haruki Ishikawa: "Spectroscopic investigation of the generation of "isomerization"states: Eigenvector analysis of the bend-CP stretch po]yad,"J. Chem. Phys.. 109. 492-503 (1998)

[Publications] Yoshiteru Matsumoto: "Characterizations of the hydrogen-bond structures of 2-naphthol-(H_2O) _n. (n=0-3 and 5) clusters by infrared-ultraviolet double-resonance spectroscopy"J. Chem. Phys.. 109. 6303-6311 (1998)

[Publications] Asuka Fujii: "A new type of intranolecular hydrogen bonding: Hydroxyl-Methyl interactions in the o-ctesol cation"J. Am. Chem. Soc.. 120. 13256-13257 (1998)

[Publications] Eiji Fujimaki: "Autoionization-detected infrared spectoroscopy of intramolecular hydrogen bonds in aromatic cations. l. Principle and appiication to flurophenol and methoxyphenol"J. Chem. Phys.. 110. 4238-4247 (1999)

[Publications] Nikhil Guchhait: "Discrimination of Rotamers of Aryl Alcohol Homologues by Infrared-Uitraviolet Double-Resonance Spectroscopy in a Supersonic jet,"J. Am. Chem. Soc.. 121. 5705-5711 (1999)

[Publications] Haruki Ishikawa: "Observation of the CH^v excited vibrational levels in the A^1 A"state of HCP by IR-UV double resonance spectroscopy,"J. Mol. Spec.. 194. 52-60 (1999)

[Publications] Haruki Ishikawa: "Intracluster lon-Mo]ecule Reactions of Dimer Cations of Phenylsilanes"J. Phys. Chem. A. 103. 2007-2012 (1999)

[Publications] Yoshiyuki Matsuda: "Vibrational spectroscopy of 2-pyridone and its clusters clusters in supersonic jets : Structures of the clusters as revealed by characteristic shifts of the NH and C=0 bands"J. Chem. Phys.. 110. 8397-8407 (1999)

[Publications] Seiichi Ishikawa: "Structures and the vibrational relaxations of size-selected benzonitrile -(H_2O)_n=1 -3 and -(CH_3OH)_n= I -3 clusters studied by fluorescence detected Raman and infrared spectroscopies,"J. Chem. Phys.. 110. 9504-9515 (1999)

[Publications] Asuka Fujii: "Autoionization-detected infrared spectroscopy of jet-cooled aromatic cations in the gas phase: CH stretching vibrations of isolated p-ethylphenol cations,"Chem. Phys. Lett.. 303. 289-294 (1999)

[Publications] Asuka Fujii: "Infrared spectroscopy of the phenol-N_2 cluster in S_0and D_0: Direct evidence of the in- plane structure of the cluster"J. Chem. Phys.. 110. 11125-11128 (1999)

[Publications] Haruki Ishikawa: "Observation of the highly excited vibrational levls of HCP: Application of IR-UV-SEP trip[e resonance spectroscopy,"Chem. Lett.. 941-942 (1999)

[Publications] Nikhil Guchhait: "Structures of hydrogen-bonded clusters of benzyl alcohol with water investigated by infrared-ultraviolet double resonance spectroscopy in supersonic jet"J. Chem. Phys.. 111. 8438-8447 (1999)

[Publications] Eiji Fujimaki: "Autoionization-detected infrared spectoroscopy of intramolecular hydrogen bonds in aromatic cations. II Unconventional intramolecular hydrogen bonds,"J. Chem. Phys.. 112. 137-147 (2000)

三上直彦東北大学, 大学院・理学研究科, 教授 (70004447)