1. “Detailed mechanism and kinetics of reactions of anti– and syn-CH3CHOO with HC(O)OH: Infrared spectra of conformers of hydroperoxyethyl formate”, B. Behera and Y.-P. Lee*, Phys. Chem. Chem. Phys. 26, 1950 (2024).


  1. “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”, C.-I Huang, J.-Y. Feng, Y.-P. Lee*, and T. Ebata, J. Phys. Chem. A 127, 9550 (2023).
  2. “Detection of a C4 Criegee intermediate: Fourier-transform microwave spectroscopy of methacrolein oxide”, Y. Endo*, C.-A. Chung, H. A. Witek, C. Cabezas, and Y.-P. Lee, J. Phys. Chem. A 127, 8602 (2023).
  3. “Infrared characterization of the products of the reaction between the Criegee intermediate CH3CHOO and HCl”, Z.-S. Su and Y.-P. Lee*, J. Phys. Chem. A 127, 6902 (2023). (SCI: 2.944) (Special Issue: Marsha I. Lester Festschrift)
  4. “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”, J.-H. Su and Y.-P. Lee*, J. Phys. Chem. A 127, 5986 (2023). (SCI: 2.944) (Special Issue: Hiro-o Hamaguchi Festschrift)
  5. “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”, J.-Y. Feng, Y.-P. Lee, P.-J. Hsu, J.-L. Kuo, and T. Ebata*, J. Phys. Chem. A 127, 4291 (2023). (Special Issue: Hiro-o Hamaguchi Festschrift)
  6. “Infrared spectra of gaseous peroxychloroformyl radical ClC(O)OO: A key intermediate in the conversion of CO to CO2 in the Venus atmosphere”, B. Behera and Y.-P. Lee*, J. Mol. Spectrosc. 393, 111771 (2023).
  7. “Infrared spectra of isoquinolinium (iso-C9H7NH+) and isoquinolinyl radicals (iso-C9H7NH and 1-, 3-, 4-, 5-, 6-, 7-, and 8-iso-HC9H7N) isolated in solid para-hydrogen”, P. R. Joshi*, M. Tsuge*, C.-Y. Tseng, and Y.-P. Lee*, Phys. Chem. Chem. Phys. 25, 11934 (2023). (2023 PCCP HOT Articles, front cover)
  8. “A Plausible Model for the Galactic Extended Red Emission: Graphene Exposed to Far-ultraviolet Light”, S.-L. Chou, W.-B. Shih, M.-Z. Yang, T.-P. Huang, S.-Y. Lin, M.-Y. Lin, W.-J. Huang, C. M. Chu, W.-Y. Woon, Y.-Y. Lee, Y.-P. Lee, and Y.-J. Wu*, Astrophys. J. 994, 18, 2023.
  9. “Spectral evidence of bevel-gear-type rotation of benzene around Br in solid p-H2: Infrared spectrum of the C6H6Br radical”, H.-R. Tsai, P. R. Joshi, H. A. Witek*, and Y.-P. Lee*, J. Phys. Chem. Lett. 14, 460, 2023.


  1. “Fluorescence excitation and dispersed fluorescence spectra of the 1-hydronaphthyl radical (1-C10H9) in solid para-hydrogen”, I. Weber,* C.-W. Wang, S.-C. Huang, C.-Y. Zhu, and Y.-P. Lee*, J. Phys. Chem. A 126, 8423 (2022)(Special Issue: Paul L. Houston Festschrift)
  2. “Infrared Characterization of the Products and Rate Coefficient of the Reaction between Criegee Intermediate CH2OO and HNO3“, C.-A. Chung, C.-W. Hsu, and Y.-P. Lee*, J. Phys. Chem. A 126, 5738 (2022).
  3. “Infrared and laser-induced fluorescence spectra of sumanene isolated in solid para-hydrogen”, I. Weber*, M. Tsuge, P. Sundararajan, M. Baba, H. Sakurai, and Y.-P. Lee*, J. Phys. Chem. A 126, 5283 (2022).
  4. “Mechanism and kinetics of the reaction of Criegee intermediate CH2OO with acetic acid studied with a step-scan Fourier-transform IR spectrometer”, B. Behera, K. Takahashi*, and Y.-P. Lee*, Phys. Chem. Chem. Phys. 24, 18568 (2022).
  5. “Hydrogen-atom tunneling reactions in solid para-hydrogen and their applications to astrochemistry”, K. A. Haupa*, P. R. Joshi*, and Y.-P. Lee*, J. Chin. Chem. Soc. 69, 1159 (2022). (Special Issue: Celebrating the 90th Anniversary of Chemical Society Located in Taipei)
  6. “Hydrogen-atom-assisted uphill isomerization of N-methylformamide in darkness”, S.-Y. Tsai, K. A. Haupa*, and Y.-P. Lee* J. Am. Chem. Soc. 144, 12339 (2022).
  7. “A chemical link between methylamine and methylene imine and implications for interstellar glycine formation”, P. R. Joshi and Y.-P. Lee*, Commun. Chem. 5, 62 (2022).
  8. “Infrared Spectra of 1-quinolinium (C9H7NH+) Cation and Quinolinyl Radicals (C9H7NH and 3-, 4-, 7-, 8-HC9H7N) Isolated in Solid para-Hydrogen”, C.-Y. Tseng, Y.-J. Wu, and Y.-P. Lee*, J. Phys. Chem. A 126, 2361 (2022)(Special issue: 10 Years of the ACS PHYS Astrochemistry Subdivision)
  9. “Formation reaction mechanism and infrared spectra of antitrans-methacrolein oxide and its associated precursor and adduct radicals”, J.-R. Cai, J.-H. Su, and Y.-P. Lee*, Commun. Chem. 5, 26 (2022).

【Other Publication】

  1. L.-K. Chu, Y.-H. Huang, and Y.-P. Lee, “chap 14: Step-scan FTIR techniques for investigations of spectra and dynamics of transient species in gaseous chemical reactions”, Molecular and Laser Spectroscopy, Elsevier Science, Netherlands (2022) ISBN: 978-0-32-391249-5
  2. C.-A. Chung and Y.-P. Lee, “chap 15: Quantum cascade lasers and their applications to spectral and kinetic investigations of reactive gaseous intermediate species”, Molecular and Laser Spectroscopy, Elsevier Science, Netherlands (2022) ISBN: 978-0-32-391249-5


  1. “Dynamics of reaction CH3CHI + O2 investigated via infrared emission of products CO, CO2, and OH”, Y.-T. Ji and Y.-P. Lee*, J. Phys. Chem. A 125, 8373 (2021)(Special issue: Daniel Neumark Festschrift)
  2. “Structures of pyridine–water clusters studied with infrared–vacuum ultraviolet spectroscopy, J.-Y. Feng, Y.-P. Lee, H. Witek, P.-J. Hsu, J.-L. Kuo*, T. Ebata*, J. Phys. Chem. A 125, 7489 (2021)(Special issue: 125 Years of The Journal of Physical Chemistry)
  3. “Non-energetic, low-temperature formation of Cα-Glycyl radical, a potential interstellar precursor of natural amino acids”, A. Schneiker, S. Góbi, P. R. Joshi, G. Bazsó, Y.-P. Lee, and G. Tarczay*, J. Phys. Chem. Lett. 12, 6744 (2021).
  4. “Vacuum ultraviolet photoionization induced proton migration and formation of a new C–N bond in pyridine clusters revealed by infrared spectroscopy and mass spectrometry”, J.-Y. Feng, Y.-P. Lee, H. A. Witek, and T. Ebata*, J. Phys. Chem. Lett. 12, 4936 (2021).
  5. “Infrared characterization of the products and the rate coefficient of the reaction between Criegee intermediate CH2OO and HCl”, W.-C. Liang, P.-L. Luo*, and Y.-P. Lee*, Phys. Chem. Chem. Phys. 23, 11082 (2021).
  6. “Formation and infrared spectrum of the open-form 2-bromoethyl radical (2-C2H4Br•) from ultraviolet irradiation of a C2H4/Br2/p-H2 matrix”, Y.-H. Chen, Y.-K. Cheng, and Y.-P. Lee*, J. Phys. Chem. A 125, 2139 (2021). (Special issue: Cheuk-Yiu Ng Festschrift)
  7. “Infrared characterization of formation and resonance stabilization of the Criegee intermediate methyl vinyl ketone”, C.-A. Chung and Y.-P. Lee*, Comm. Chem. 4, 8 (2021).
  8. ​”Hydrogen abstraction of acetic acid by hydrogen atom to form carboxymethyl radical •CH2C(O)OH in solid para-hydrogen and its implication in astrochemistry, P. R. Joshi, K. C.-Y. How, and Y.-P. Lee*, ACS Earth Space Chem. 5, 106 (2021).


  1. “Hydrogenation of pyrrole: Infrared spectra of the 2,3-dihydropyrrol-2-yl and 2,3-dihydropyrrol-3-yl radicals isolated in solid para-hydrogen”, J. Amicangelo* and Y.-P. Lee*, J. Chem. Phys. 153, 164302 (2020).
  2. “IR-VUV spectroscopy of pyridine dimer, trimer and pyridine-ammonia complexes in a supersonic jet”, J.-Y. Feng, Y.-P. Lee, C. Zhu, P.-J. Hsu, J.-L. Kuo*, and T. Ebata*, Phys. Chem. Chem. Phys. 22, 21520 (2020).
  3. “Infrared spectra of mono-hydrogenated aniline, ortho– and para-HC6H5NH2, generated in solid para-hydrogen”, M. Tsuge*, Y.-H. Chen, and Y.-P. Lee*, J. Phys. Chem. A 124, 7500 (2020).
  4. “A direct mapping approach to understand carrier relaxation dynamics in varied regions of a polycrystalline perovskite film”, A. Fathi, E. Jokar, Y.-P. Lee, E. W.-G. Diau*, Angew. Chem. Int. Ed. 59, 19001 (2020).
  5. “Infrared spectroscopy of H+(CO)2 in the gas phase and in para-hydrogen matrices”, D. Leicht, B. Rittgers, G. Douberly, J. P. Wagner, D. McDonald II, D. Mauney, M. Tsuge*, Y.-P. Lee, and M. Duncan*, J. Chem. Phys. 153, 084305 (2020).
  6. “Detection of a Criegee intermediate with an unsaturated hydrocarbon substituent: Fourier-transform microwave spectroscopy of methyl vinyl ketone oxide”, Y. Endo*, H. A. Witek, C.-A. Chung, and Y.-P. Lee, J. Phys. Chem. A 124, 6203 (2020).
  7. “Dynamics of the reaction CH2I + O2 probed via infrared emission of CO, CO2, OH and H2CO”, T.-Y. Chen and Y.-P. Lee*, Phys. Chem. Chem. Phys. 22, 17540 (2020).
  8. “Infrared spectra of (Z)- and (E)-•C2H3C(CH3)I radicals produced upon photodissociation of (Z)- and (E)-(CH2I)HC=C(CH3)I in solid para-hydrogen”, J. Phys. Chem. A 124, 5887 (2020).
  9. “UV/Vis+ photochemistry database: structure, content and applications” A. Noelle, A. C. Vandaele*, J. Martin-Torres, C. Yuan, B. N. Rajasekhar, A. Fahr, G. K. Hartmann, D. Lary, Y.-P. Lee, P. Limao-Vieira, R. Locht, K. McNeill, J. J. Orlando, F. Salama, and R. P. Wayne, J. Quant. Spectrosc. Radiat. Transf. 253, 107056 (2020).
  10. “Reaction of CH2Cl radical with O2 in solid para-hydrogen: Infrared spectrum of gauche-CH2ClOO radical”, K. A. Haupa* and Y.-P. Lee*, J. Mol. Spectrosc. 1215, 128214 (2020).
  11. “Label-free optical microscope based on a phase-modulated femtosecond pump-probe approach with sub-diffraction resolution”, A. Fathi, C.-Y. Chung, Y.-P. Lee, and E. W.-G. Diau*, ACS Photonics 7, 607 (2020).
  12. “Infrared spectra of isomers of protonated aniline in solid para-hydrogen”, M. Tsuge*, Y.-H. Chen, and Y.-P. Lee*, J. Phys. Chem. A 124, 2253 (2020).
  13. ​”Hydrogen abstraction in astrochemistry: Formation of •CH2CONH2 in the reaction of H atom with acetamide (CH3CONH2) and photolysis of •CH2CONH2 to form ketene (CH2CO) in solid para-hydrogen”, K. A. Haupo*, W.-S. Ong, and Y.-P. Lee*, Phys. Chem. Chem. Phys. 22, 6192 (2020).

【Other Publication】

  1. M. Tsuge and Y.-P. Lee, “chap 5: Spectroscopy of molecules confined in solid para-hydrogen”, Molecular and Laser Spectroscopy, Elsevier, Netherlands (2020) ISBN: 978-0-12-818870-5
  2. “Infrared spectra of protonated and hydrogenated corannulene (C20H10) and sumanene (C21H12) using matrix isolation in solid para-hydrogen – implications for the UIR bands”, P. Sundararajan, M. Tsuge, M. Baba, H. Sakurai, and Y.-P. Lee, Proc. Int. Astron. Union 15, 358 (2020).