Yuan‐Pern Lee 研究室

主宰者：Yuan‐Pern Lee

理化学研究所・RIKEN Center for Emergent Matter Science

AI 要約（直近 5 年の研究成果）

本研究室は、大気化学や宇宙化学に関わる分子の構造と反応性を解明することを目的としています。特に、オゾンと有機物が反応する際に生成されるクリーゲー中間体という短寿命の化学種に注目しており、これらが大気中でどのような反応を起こすのか、またどのような化学物質へ変化するのかを調べています。このような中間体は二次有機エアロゾル（大気汚染物質）の形成に大きく関わっていることが知られています。実験手法としては、赤外分光法や蛍光分光法といった光学計測技術を主に使用しています。特に、極低温の固体パラ水素マトリックス中や気流反応装置の中で化学反応を行わせ、生成された化学種の詳細な構造情報を得ています。多波長のレーザーやLED光を同時に使って、複数の反応物や生成物を同時に追跡することで、反応の進行を時間分解で観測しています。また、量子化学計算による理論予測と実験結果を比較して、化学種の同定精度を高めています。さらに、本研究室は星間空間での化学反応にも関心を持ち、多環芳香族炭化水素やその誘導体が宇宙線によってどのように変化し、星間赤外帯という観測現象の原因物質となり得るかについても研究しています。これらの研究を通じて、実験室で観測した分子スペクトルが、宇宙からの観測データの解釈に役立つ基礎情報を提供しています。

※ AI（Claude）が、公開されている論文要旨から研究の問い・手法・主要な発見を事実情報として抽出・再構成して自動生成しています。誤りを含む可能性があるため、正確性は研究室公式情報でご確認ください。

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研究成果（50 件）

[2025] Fluorescence excitation and dispersed fluorescence spectra of iso-quinolinyl radicals 4-, 5-, and 8-iso-HC 9 H 7 N isolated in solid para -hydrogen
DOI: https://doi.org/10.1039/d5cp03455h
[2025] Reactions of the Criegee Intermediate Methyl Vinyl Ketone Oxide with HC(O)OH: Infrared Spectra of the Hydrogen-Transfer Adduct 2-Hydroperoxybut-3-en-2-yl Formate
DOI: https://doi.org/10.1021/acs.jpca.5c06912
[2025] Infrared Spectra of Protonated Phenanthridine (C 13 H 9 NH + ) and Isomers of Monohydrogenated Phenanthridine (C 13 H 9 NH and 1-, 2-, 7-, 9-, and 10-HC 13 H 9 N) Isolated in Solid Para-Hydrogen
DOI: https://doi.org/10.1021/acs.jpca.5c06624
[2025] Conformation-specific reactions of Criegee intermediates
DOI: https://doi.org/10.1063/5.0278251
[2025] SpectraMatcher: A python program for interactive analysis and peak assignment of vibronic spectra
DOI: https://doi.org/10.1016/j.cpc.2025.109945
[2025] Infrared Study of Electron-bombarded Phenanthrene (C14H10)/Para-H2 Matrices: Isomers of Protonated Phenanthrene (1-, 3-, 4-, and 9-H+C14H10)
DOI: https://doi.org/10.1021/acs.jpca.5c04756
[2025] Conformation-Specific Rate Coefficients of CH3CHOO + HCl Determined with Multiple IR/UV Absorption Probes
DOI: https://doi.org/10.1021/acs.jpclett.5c01353
[2025] Identification of the HO•CHC(O)NH2 Radical Intermediate in the Reaction of H + Glycolamide in Solid Para-Hydrogen and Its Implication to the Interstellar Formation of Higher-Order Amides and Polypeptides
DOI: https://doi.org/10.1021/acsearthspacechem.4c00409
[2024] Laboratory and astronomical discovery of cyanothioketene, NCCHCS, in the cold starless core TMC-1
DOI: https://doi.org/10.1051/0004-6361/202450323
[2024] Rate Coefficient and Branching Ratio for the Formation of Criegee Intermediate Syn-/Anti-CH3CHOO from CH3CHI + O2 and the Self-Reaction of Syn-/Anti-CH3CHOO Determined with Simultaneous IR/UV Probes
DOI: https://doi.org/10.1021/acs.jpca.4c06588

続きを表示（残り 40 件）

[2024] Electronic Spectroscopy of Ovalene: Reassignment of the S2(B3u)– S0(Ag) Transition
DOI: https://doi.org/10.1021/acs.jpclett.4c02494
[2024] Infrared Spectrum of the Adduct 2-Chloro-2-hydroperoxybut-3-ene [(C2H3)CCl(CH3)OOH] of the Reaction between the Criegee Intermediate Methyl Vinyl Ketone Oxide [C2H3C(CH3)OO] and HCl
DOI: https://doi.org/10.1021/acs.jpca.4c04936
[2024] Identification of HOC•HC(O)H, HOCH2C•O, and HOCH2CH2O• Intermediates in the Reaction of H + Glycolaldehyde in Solid Para-Hydrogen and Its Implication to the Interstellar Formation of Complex Sugars
DOI: https://doi.org/10.1021/jacs.4c05896
[2024] Fluorescence Excitation and Dispersed Fluorescence Spectra of the First Electronic Excited (S1) State of peri-Hexabenzocoronene (C42H18) Isolated in Solid para-Hydrogen
DOI: https://doi.org/10.1021/acs.jpca.4c02320
[2024] Gantry-Based Pencil Beam Scanning (PBS) Proton Therapy for Uveal Melanoma: IMPT vs. Proton Arc Therapy
DOI: https://doi.org/10.1016/j.ijrobp.2024.07.1716
[2023] Infrared Spectra of (Z)- and (E)-•CH2C(CH3)CHI Radicals Produced upon Photodissociation of (Z)- and (E)-(CH2I)(CH3)C═CHI in Solid para-Hydrogen
DOI: https://doi.org/10.1021/acs.jpca.3c02170
[2023] Detailed mechanism and kinetics of reactions of anti - and syn -CH 3 CHOO with HC(O)OH: infrared spectra of conformers of hydroperoxyethyl formate
DOI: https://doi.org/10.1039/d3cp04086k
[2023] Structures and Anharmonic Analyses of the O–H Stretching Vibrations of Jet-Cooled Benzoic Acid (BA), (BA)(H2O)n, and (BA)2(H2O)n (n = 1, 2) Clusters, and Their Ring-Deuterated Isotopologues Measured with IR-VUV Spectroscopy─Unraveling the Complex Anharmonic Couplings in the Cyclic Structures
DOI: https://doi.org/10.1021/acs.jpca.3c06581
[2023] Detection of a C4 Criegee Intermediate: Fourier-Transform Microwave Spectroscopy of Methacrolein Oxide
DOI: https://doi.org/10.1021/acs.jpca.3c05553
[2023] Infrared Characterization of the Products of the Reaction between the Criegee Intermediate CH3CHOO and HCl
DOI: https://doi.org/10.1021/acs.jpca.3c03527
[2023] PRODUCTION OF CÎ±-ALANYL RADICAL AND VINYLAMINE IN THE REACTION H + Î±-ALANINE IN SOLID p-H2 AND ITS IMPLICATIONS IN ASTROCHEMISTRY
DOI: https://doi.org/10.15278/isms.2023.6842
[2023] SPECTRAL STUDIES OF THE REACTION OF THE CRIEGEE INTERMEDIATE CH3CHOO WITH HCL USING A STEP-SCAN FOURIER-TRANSFORM INFRARED ABSORPTION SPECTROMETER
DOI: https://doi.org/10.15278/isms.2023.6904
[2023] Structures of (Pyrazine)2 and (Pyrazine)(Benzene) Dimers Investigated with Infrared–Vacuum Ultraviolet Spectroscopy and Quantum-Chemical Calculations: Competition among π–π, CH···π, and CH···N Interactions
DOI: https://doi.org/10.1021/acs.jpca.3c01767
[2023] Infrared spectra of gaseous peroxychloroformyl radical ClC(O)OO: A key intermediate in the conversion of CO to CO2 in the Venus atmosphere
DOI: https://doi.org/10.1016/j.jms.2023.111771
[2023] A Plausible Model for the Galactic Extended Red Emission: Graphene Exposed to Far-ultraviolet Light
DOI: https://doi.org/10.3847/1538-4357/acb209
[2023] Spectral Evidence of Bevel-Gear-Type Rotation of Benzene around Br in Solid p-H2: Infrared Spectrum of the C6H6Br Radical
DOI: https://doi.org/10.1021/acs.jpclett.2c03262
[2023] Infrared spectra of isoquinolinium (iso-C 9 H 7 NH + ) and isoquinolinyl radicals (iso-C 9 H 7 NH and 1-, 3-, 4-, 5-, 6-, 7- and 8-iso-HC 9 H 7 N) isolated in solid para -hydrogen
DOI: https://doi.org/10.1039/d3cp00246b
[2022] Mechanism and kinetics of the reaction of the Criegee intermediate CH 2 OO with acetic acid studied using a step-scan Fourier-transform IR spectrometer
DOI: https://doi.org/10.1039/d2cp01053d
[2022] Infrared and Laser-Induced Fluorescence Spectra of Sumanene Isolated in Solid para-Hydrogen
DOI: https://doi.org/10.1021/acs.jpca.2c02906
[2022] Hydrogen‐atom tunneling reactions in solid para‐hydrogen and their applications to astrochemistry
DOI: https://doi.org/10.1002/jccs.202200210
[2022] Hydrogen-Atom-Assisted Uphill Isomerization of N-Methylformamide in Darkness
DOI: https://doi.org/10.1021/jacs.2c03714
[2022] MECHANISM AND KINETICS OF THE REACTION OF CRIEGEE INTERMEDIATE CH2OO WITH ACETIC ACID STUDIED WITH A STEP-SCAN FOURIER-TRANSFORM IR SPECTROMETER
DOI: https://doi.org/10.15278/isms.2022.wc09
[2022] Fluorescence Excitation and Dispersed Fluorescence Spectra of the 1-Hydronaphthyl Radical (1-C10H9) in Solid para-Hydrogen
DOI: https://doi.org/10.1021/acs.jpca.2c06169
[2022] PRODUCTION OF •CH2NH2 AND CH2NH IN THE REACTIONS OF METHYLAMINE (CH3NH2) WITH •H OR •OH IN SOLID p-H2 AND ITS IMPLICATION IN ASTROCHEMISTRY
DOI: https://doi.org/10.15278/isms.2022.tn07
[2022] FORMATION REACTION MECHANISM AND INFRARED SPECTRA OF CRIEGEE INTERMEDIATE ANTI-TRANS-METHACROLEIN OXIDE [CH2C(CH3)CHOO] AND ITS ASSOCIATED PRECURSOR AND ADDUCT RADICALS
DOI: https://doi.org/10.15278/isms.2022.tn09
[2022] Infrared Characterization of the Products and Rate Coefficient of the Reaction between Criegee Intermediate CH2OO and HNO3
DOI: https://doi.org/10.1021/acs.jpca.2c04557
[2022] A chemical link between methylamine and methylene imine and implications for interstellar glycine formation
DOI: https://doi.org/10.1038/s42004-022-00677-5
[2022] Infrared Spectra of 1-Quinolinium (C9H7NH+) Cation and Quinolinyl Radicals (C9H7NH and 3-, 4-, 7-, and 8-HC9H7N) Isolated in Solid para-Hydrogen
DOI: https://doi.org/10.1021/acs.jpca.2c01330
[2022] Formation reaction mechanism and infrared spectra of anti-trans-methacrolein oxide and its associated precursor and adduct radicals
DOI: https://doi.org/10.1038/s42004-022-00644-0
[2021] Hydrogen Abstraction of Acetic Acid by Hydrogen Atom to Form Carboxymethyl Radical •CH2C(O)OH in Solid para-Hydrogen and Its Implication in Astrochemistry
DOI: https://doi.org/10.1021/acsearthspacechem.0c00316
[2021] Vacuum Ultraviolet Photoionization Induced Proton Migration and Formation of a New C–N Bond in Pyridine Clusters Revealed by Infrared Spectroscopy and Mass Spectrometry
DOI: https://doi.org/10.1021/acs.jpclett.1c00748
[2021] Dynamics of Reaction CH3CHI + O2Investigated via Infrared Emission of Products CO, CO2, and OH
DOI: https://doi.org/10.1021/acs.jpca.1c05610
[2021] Structures of Pyridine–Water Clusters Studied with Infrared–Vacuum Ultraviolet Spectroscopy
DOI: https://doi.org/10.1021/acs.jpca.1c05782
[2021] Non-energetic, Low-Temperature Formation of Cα-Glycyl Radical, a Potential Interstellar Precursor of Natural Amino Acids
DOI: https://doi.org/10.1021/acs.jpclett.1c01306
[2021] PRODUCTION OF HOCH2CO, HOCHCHO, AND HOCHCO IN THE REACTION H + GLYCOLALDEHYDE (HOCH2CHO) IN SOLID p-H2 AND ITS IMPLICATION IN ASTROCHEMISTRY
DOI: https://doi.org/10.15278/isms.2021.wm05
[2021] INFRARED SPECTRA OF GASEOUS (Z)-3-IODO-BUT-2-EN-1-YL [C2H3C(CH3)I] RADICAL, METHYL VINYL KETONE OXIDE [C2H3C(CH3)OO] CRIEGEE INTERMEDIATE, AND C2H3CI(CH3)OO
DOI: https://doi.org/10.15278/isms.2021.wm04
[2021] INFRARED SPECTRUM OF THE 1-IODOPROPYL RADICAL PRODUCED FROM REACTION OF I + PROPENE IN SOLID PARA-HYDROGEN
DOI: https://doi.org/10.15278/isms.2021.wm03
[2021] Formation and Infrared Spectrum of the Open-Form 2-Bromoethyl Radical (2-C2H4Br•) from Ultraviolet Irradiation of a C2H4/Br2/p-H2 Matrix
DOI: https://doi.org/10.1021/acs.jpca.1c00577
[2021] Infrared characterization of formation and resonance stabilization of the Criegee intermediate methyl vinyl ketone oxide
DOI: https://doi.org/10.1038/s42004-020-00447-1
[2021] Infrared characterization of the products and the rate coefficient of the reaction between Criegee intermediate CH 2 OO and HCl
DOI: https://doi.org/10.1039/d1cp00011j

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AI 要約（直近 5 年の研究成果）

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研究成果（50 件）

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