Okumura, Mitchio
Nguyen, Tyler M. and Ober, Douglas C., et el. (2024) Infrared Photodissociation Spectroscopy of Water-Tagged Ions with a Widely Tunable Quantum Cascade Laser for Planetary Science Applications ; Analytical Chemistry; Vol. 96; No. 22; 8875-8879; PMCID PMC11155675; 10.1021/acs.analchem.4c01023
Chao, Wen and Markus, Charles R., et el. (2024) Chemical Kinetic Study of the Reaction of CH₂OO with CH₃O₂ ; Journal of Physical Chemistry Letters; Vol. 15; No. 13; 3690-3697; 10.1021/acs.jpclett.4c00159
Chao, Wen and Jones, Gregory H., et el. (2023) A-Band Absorption Spectrum of the ClSO Radical: Electronic Structure of the Sulfinyl Group ; Journal of Physical Chemistry A; Vol. 127; No. 40; 8374-8382; PMCID PMC10577680; 10.1021/acs.jpca.3c04977
Zuraski, Kristen and Grieman, Fred J., et el. (2023) Acetonyl Peroxy and Hydroperoxy Self- and Cross-Reactions: Temperature-Dependent Kinetic Parameters, Branching Fractions, and Chaperone Effects ; Journal of Physical Chemistry A; Vol. 127; No. 37; 7772-7792; PMCID PMC10518823; 10.1021/acs.jpca.3c03660
Rösch, Daniel and Jones, Gregory H., et el. (2023) Conformer-Dependent Chemistry: Experimental Product Branching of the Vinyl Alcohol + OH + O₂ Reaction ; Journal of Physical Chemistry A; Vol. 127; No. 14; 3221-3230; 10.1021/acs.jpca.3c00356
Chao, Wen and Jones, Gregory H., et el. (2022) Spectroscopic and Kinetic Studies of the ClSO Radical from Cl₂SO Photolysis ; Journal of the American Chemical Society; Vol. 144; No. 44; 20323-20331; 10.1021/jacs.2c07912
Mertens, Laura A. and Winiberg, Frank A. F., et el. (2022) Yields of HONO₂ and HOONO Products from the Reaction of HO₂ and NO Using Pulsed Laser Photolysis and Mid-Infrared Cavity-Ringdown Spectroscopy ; Journal of Physical Chemistry A; Vol. 126; No. 40; 7342-7360; 10.1021/acs.jpca.2c04643
Zhang, Xu and Berkinsky, David, et el. (2022) Reaction of methane and UV-activated perchlorate: Relevance to heterogeneous loss of methane in the atmosphere of Mars ; Icarus; Vol. 376; Art. No. 114832; 10.1016/j.icarus.2021.114832
Sterczewski, Lukasz A. and Chen, Tzu-Ling, et el. (2022) Cavity-Enhanced Vernier Spectroscopy with a Chip-Scale Mid-Infrared Frequency Comb ; ACS Photonics; Vol. 9; No. 3; 994-1001; 10.1021/acsphotonics.1c01849
Chen, Tzu-Ling and Ober, Douglas C., et el. (2021) Optically Switched Dual-Wavelength Cavity Ring-Down Spectrometer for High-Precision Isotope Ratio Measurements of Methane δD in the Near Infrared ; Analytical Chemistry; Vol. 93; No. 16; 6375-6384; 10.1021/acs.analchem.0c05090
Durif, O. and Capron, M., et el. (2021) A new instrument for kinetics and branching ratio studies of gas phase collisional processes at very low temperatures ; Review of Scientific Instruments; Vol. 92; No. 1; Art. No. 014102; 10.1063/5.0029991
Zuraski, Kristen and Hui, Aileen O., et el. (2020) Acetonyl Peroxy and Hydro Peroxy Self- and Cross-Reactions: Kinetics, Mechanism, and Chaperone Enhancement from the Perspective of the Hydroxyl Radical Product ; Journal of Physical Chemistry A; Vol. 124; No. 40; 8128-8143; 10.1021/acs.jpca.0c06220
Messinger, Joseph P. and Gupta, Divita, et el. (2020) Rate Constants of the CN + Toluene Reaction from 15 – 294 K and Interstellar Implications ; Journal of Physical Chemistry A; Vol. 124; No. 39; 7950-7958; 10.1021/acs.jpca.0c06900
Hui, Aileen O. and Okumura, Mitchio, et el. (2019) Temperature Dependence of the Reaction of Chlorine Atoms with CH_3OH and CH_3CHO ; Journal of Physical Chemistry A; Vol. 123; No. 23; 4964-4972; 10.1021/acs.jpca.9b00038
Hui, Aileen O. and Fradet, Mathieu, et el. (2019) Temperature Dependence Study of the Kinetics and Product Yields of the HO_2 + CH_3C(O)O_2 Reaction by Direct Detection of OH and HO_2 Radicals Using 2f-IR Wavelength Modulation Spectroscopy ; Journal of Physical Chemistry A; Vol. 123; No. 17; 3655-3671; 10.1021/acs.jpca.9b00442
Yung, Yuk L. and Chen, Pin, et el. (2018) Methane on Mars and Habitability: Challenges and Responses ; Astrobiology; Vol. 18; No. 10; 1221-1242; PMCID PMC6205098; 10.1089/ast.2018.1917
Zangmeister, Christopher D. and You, Rian, et el. (2018) Measured in-situ mass absorption spectra for nine forms of highly-absorbing carbonaceous aerosol ; Carbon; Vol. 136; 85-93; 10.1016/j.carbon.2018.04.057
Dodson, Leah G. and Savee, John D., et el. (2018) Vacuum ultraviolet photoionization cross section of the hydroxyl radical ; Journal of Chemical Physics; Vol. 148; No. 18; Art. No. 184302; 10.1063/1.5024249
Bui, Thinh Q. and Bjork, Bryce J., et el. (2018) Direct measurements of DOCO isomers in the kinetics of OD + CO ; Science Advances; Vol. 4; No. 1; Art. No. eaao4777; PMCID PMC5770171; 10.1126/sciadv.aao4777
Bjork, B. J. and Bui, T. Q., et el. (2016) Direct frequency comb measurement of OD + CO → DOCO kinetics ; Science; Vol. 354; No. 6311; 444-448; 10.1126/science.aag1862
Dodson, Leah G. and Shen, Linhan, et el. (2015) VUV Photoionization Cross Sections of HO₂, H₂O₂, and H₂CO ; Journal of Physical Chemistry A; Vol. 119; No. 8; 1279-1291; 10.1021/jp508942a
Okumura, Mitchio (2015) Just add water dimers ; Science; Vol. 347; No. 6223; 718-719; 10.1126/science.aaa5506
Bui, Thinh Q. and Long, David A., et el. (2014) Observations of Dicke narrowing and speed dependence in air-broadened CO_2 lineshapes near 2.06 μm ; Journal of Chemical Physics; Vol. 141; No. 17; Art. No. 174301; 10.1063/1.4900502
Fleisher, Adam J. and Bjork, Bryce J., et el. (2014) Mid-Infrared Time-Resolved Frequency Comb Spectroscopy of Transient Free Radicals ; Journal of Physical Chemistry Letters; Vol. 5; No. 13; 2241-2246; 10.1021/jz5008559
Morajkar, Pranay and Schoemaecker, Coralie, et el. (2014) Direct Measurement of the Equilibrium Constants of the Reaction of Formaldehyde and Acetaldehyde with HO_2 Radicals ; International Journal of Chemical Kinetics; Vol. 46; No. 5; 245-259; 10.1002/kin.20817
Sprague, Matthew K. and Mertens, Laura A., et el. (2013) Cavity Ringdown Spectroscopy of the Hydroxy-Methyl-Peroxy
Radical ; Journal of Physical Chemistry A; Vol. 117; No. 39; 10006-10017; 10.1021/jp400390y
Okumura, Mitchio and McCall, Benjamin J., et el. (2013) Tribute to Takeshi Oka ; Journal of Physical Chemistry A; Vol. 117; No. 39; 9305-9307; 10.1021/jp4079597
Takematsu, Kana and Eddingsaas, Nathan C., et el. (2013) Spectroscopic studies of the Jahn-Teller effect in the Ã^2E" state of the nitrate radical NO^3 ; Chemical Physics Letters; Vol. 555; 57-63; 10.1016/j.cplett.2012.10.088
Sprague, Matthew K. and Garland, Eva R., et el. (2012) Kinetics of n-Butoxy and 2-Pentoxy Isomerization and Detection of Primary Products by Infrared Cavity Ringdown Spectroscopy ; Journal of Physical Chemistry A; Vol. 116; No. 24; 6327-6340; 10.1021/jp212136r
Long, D. A. and Cygan, A., et el. (2012) Frequency-stabilized cavity ring-down spectroscopy ; Chemical Physics Letters; Vol. 536; 1-8; 10.1016/j.cplett.2012.03.035
Yeung, Laurence Y. and Okumura, Mitchio, et el. (2012) O(^3P) +CO_2 Collisions at Hyperthermal Energies: Dynamics of Nonreactive Scattering, Oxygen Isotope Exchange, and Oxygen-Atom Abstraction ; Journal of Physical Chemistry A; Vol. 116; No. 1; 64-84; 10.1021/jp2080379
Long, D. A. and Havey, D. K., et el. (2011) O_2 A-band line parameters to support atmospheric remote sensing. Part II: The rare isotopologues ; Journal of Quantitative Spetroscopy and Radiative Transfer; Vol. 112; No. 16; 2527-2541; 10.1016/j.jqsrt.2011.07.002
Grieman, Fred J. and Noell, Aaron C., et el. (2011) Determination of Equilibrium Constants for the Reaction between Acetone and HO_2 Using Infrared Kinetic Spectroscopy ; Journal of Physical Chemistry A; Vol. 115; No. 38; 10527-10538; 10.1021/jp205347s
Long, David A. and Bielska, Katarzyna, et el. (2011) The air-broadened, near-infrared CO_2 line shape in the spectrally isolated regime: Evidence of simultaneous Dicke narrowing and speed dependence ; Journal of Chemical Physics; Vol. 135; No. 6; Art. No. 064308; 10.1063/1.3624527
Mollner, Andrew K. and Valluvadasan, Sivakumaran, et el. (2010) Rate of Gas Phase Association of Hydroxyl Radical and Nitrogen Dioxide ; Science; Vol. 330; No. 6004; 646-649; 10.1126/science.1193030
Long, D. A. and Havey, D. K., et el. (2010) O_2 A-band line parameters to support atmospheric remote sensing ; Journal of Quantitative Spectroscopy and Radiative Transfer; Vol. 111; No. 14; 2021-2036; 10.1016/j.jqsrt.2010.05.011
Noell, A. C. and Alconcel, L. S., et el. (2010) Near-Infrared Kinetic Spectroscopy of the HO_2 and C_2H_5O_2 Self-Reactions and Cross Reactions ; Journal of Physical Chemistry A; Vol. 114; No. 26; 6983-6995; 10.1021/jp912129j
Long, D. A. and Havey, D. K., et el. (2010) Cavity ring-down spectroscopy measurements of sub-Doppler hyperfine structure ; Physical Review A; Vol. 81; No. 6; Art. No. 064502; 10.1103/PhysRevA.81.064502
Wild, Duncan A. and Kuwata, Keith T., et el. (2010) Infrared Spectra of Mass-Selected Br¯−(NH_3)_n and I¯−NH_3 Clusters ; Journal of Physical Chemistry A; Vol. 114; No. 14; 4762-4769; 10.1021/jp909237n
McCoy, Anne B. and Sprague, Matthew K., et el. (2010) The Role of Torsion/Torsion Coupling in the Vibrational Spectrum of Cis−Cis HOONO ; Journal of Physical Chemistry A; Vol. 114; No. 3; 1324-1333; 10.1021/jp905731h
Robichaud, David J. and Yeung, Laurence Y., et el. (2009) Experimental Line Parameters of the b^(1)Σ^(+)_g ← X^(3)Σ^(-)_g Band of Oxygen Isotopologues at 760 nm Using Frequency-Stabilized Cavity Ring-Down Spectroscopy ; Journal of Physical Chemistry A; Vol. 113; No. 47; 13089-13099; 10.1021/jp901127h
Havey, D. K. and Long, D. A., et el. (2009) Ultra-sensitive optical measurements of high-J transitions in the O_2 A-band ; Chemical Physics Letters; Vol. 483; No. 1-3; 49-54; 10.1016/j.cplett.2009.10.067
Yeung, Laurence Y. and Okumura, Mitchio, et el. (2009) Hyperthermal O-Atom Exchange Reaction O_2 + CO_2 through a CO_4 Intermediate ; Journal of the American Chemical Society; Vol. 131; No. 39; 13940-13942; 10.1021/ja903944k
Long, D. A. and Havey, D. K., et el. (2009) Laboratory measurements and theoretical calculations of O_2 A band electric quadrupole transitions ; Physical Review A; Vol. 80; No. 4; Art. No. 042513; 10.1103/PhysRevA.80.042513
Yeung, Laurence Y. and Affek, Hagit P., et el. (2009) Large and unexpected enrichment in stratospheric ^(16)O^(13)C^(18)O and its meridional variation ; Proceedings of the National Academy of Sciences of the United States of America; Vol. 106; No. 28; 11496-11501; PMCID PMC2710640; 10.1073/pnas.0902930106
Stanton, John F. and Okumura, Mitchio (2009) On the vibronic level structure in the NO_3 radical.
Part III. Observation of intensity borrowing via ground state mixing ; Physical Chemistry Chemical Physics; Vol. 11; No. 23; 4742-4744; 10.1039/b902252j
Yeung, Laurence Y. and Affek, Hagit P., et el. (2009) A 'clumped-isotope' study of stratospheric CO_2 reveals a new atmospheric process ; Geochimica et Cosmochimica Acta; Vol. 73; No. 13; A1484; 10.1016/j.gca.2009.05.018
Robichaud, David J. and Hodges, Joseph T., et el. (2008) High-accuracy transition frequencies for the O_2 A-band ; Journal of Molecular Spectroscopy; Vol. 251; No. 1-2; 27-37; 10.1016/j.jms.2007.12.008
Christensen, Lance E. and Okumura, Mitchio, et el. (2006) Experimental and ab Initio Study of the HO_2·CH_3OH Complex: Thermodynamics and Kinetics of Formation ; Journal of Physical Chemistry A; Vol. 110; No. 21; 6948-6959; 10.1021/jp056579a
Okumura, Mitchio and Stanton, John F., et el. (2006) New insights into the Jahn–Teller effect in NO_3 via the dark à 2E" state ; Physica Scripta; Vol. 73; No. 1; C64-C70; 10.1088/0031-8949/73/1/N12
Yeung, Laurence Y. and Eiler, John M., et el. (2006) Anomalous isotope effects in the O(1D) + CO2 isotope exchange reaction ; Abstracts of Papers of the American Chemical Society; Vol. 232; Art. No. PHYS 368
Deev, Andrei and Sommar, Jonas, et el. (2005) Cavity ringdown spectrum of the forbidden (A)over-tilde(2)E('')←(X)over-tilde(2)A(2)(') transition of NO_3: Evidence for static Jahn-Teller distortion in the (A)over-tilde state ; Journal of Chemical Physics; Vol. 122; No. 22; Art. No. 224305; 10.1063/1.1897364
McCoy, Anne B. and Fry, Juliane L., et el. (2005) Role of OH-stretch/torsion coupling and quantum yield effects in the first OH overtone spectrum of cis-cis HOONO ; Journal of Chemical Physics; Vol. 122; No. 10; Art. no. 104311; 10.1063/1.1859273
Fry, Juliane L. and Nizkorodov, Sergey A., et el. (2004) Cis-cis and trans-perp HOONO: Action spectroscopy and isomerization kinetics ; Journal of Chemical Physics; Vol. 121; No. 3; 1432-1448; 10.1063/1.1760714
Christensen, Lance E. and Okumura, Mitchio, et el. (2004) Measurements of the Rate Constant of HO_2 + NO_2 + N_2 → HO_2NO_2 + N_2 Using Near-Infrared Wavelength-Modulation Spectroscopy and UV−Visible Absorption Spectroscopy ; Journal of Physical Chemistry A; Vol. 108; No. 1; 80-91; 10.1021/jp035905o
Spotts, J. M. and Wong, C.-K., et el. (2003) Multiphoton Ionization Spectroscopy of AlAr_N Clusters ; Journal of Physical Chemistry A; Vol. 107; No. 36; 6948-6965; 10.1021/jp030399o
Bean, Brian D. and Mollner, Andrew K., et el. (2003) Cavity Ringdown Spectroscopy of cis-cisHOONO and the HOONO/HONO_2 Branching Ratio in the Reaction OH + NO_2+ M ; Journal of Physical Chemistry A; Vol. 107; No. 36; 6974-6985; 10.1021/jp034407c
Christensen, L. E. and Okumura, M., et el. (2002) Kinetics of HO_2 + HO_2 → H_2O_2 + O_2: Implications for Stratospheric H_2O_2 ; Geophysical Research Letters; Vol. 29; No. 9; Art. No. 1299; 10.1029/2001GL014525
Blanksby, Stephen J. and Ramond, Tanya M., et el. (2001) Negative-Ion Photoelectron Spectroscopy, Gas-Phase Acidity, and Thermochemistry of the Peroxyl Radicals CH_3OO and CH_3CH_2OO ; Journal of the American Chemical Society; Vol. 123; No. 39; 9585-9596; 10.1021/ja010942j
Lobo, Julio D. and Deev, Andrei, et el. (2001) Electronic spectroscopy of the alkaline-earth halide cluster Ca_2Cl_3 ; Journal of Chemical Physics; Vol. 114; No. 20; 8913-8925; 10.1063/1.1353547
Chan, Man-Chor and Okumura, Mitchio, et el. (2000) Infrared Spectrum of p-Hydrogen Crystals Ionized by 3 MeV Electrons: Cluster Ions of Hydrogen in Condensed Phase ; Journal of Physical Chemistry A; Vol. 104; No. 16; 3775-3779; 10.1021/jp993890h
Tsao, Chun-Cheng and Lobo, Julio D., et el. (1998) Generation of charged droplets by field ionization of liquid helium ; Journal of Physics D: Applied Physics; Vol. 31; No. 17; 2195-2204; 10.1088/0022-3727/31/17/019
Choi, Jong-Ho and Kuwata, Keith T., et el. (1998) Vibrational Spectroscopy of the Cl^-(H_2O)_n Anionic Clusters, n = 1−5 ; Journal of Physical Chemistry A; Vol. 102; No. 3; 503-507; 10.1021/jp9729425
Choi, Jong-Ho and Kuwata, Keith T., et el. (1997) Protonation of Chlorine Nitrate and Nitric Acid: Identification of Isomers by Vibrational Spectroscopy ; Journal of Physical Chemistry A; Vol. 101; No. 36; 6753-6760; 10.1021/jp970762p
Moore, Teresa A. and Okumura, Mitchio, et el. (1997) Photodissociation of Cl_2O at 248 and 308 nm ; Journal of Chemical Physics; Vol. 107; No. 8; 3337-3338; 10.1063/1.474706
Lo, Shui-Yin and Lobo, Julio D., et el. (1997) Generation of energetic He atom beams by a pulsed positive corona discharge ; Journal of Applied Physics; Vol. 81; No. 9; 5896-5904; 10.1063/1.364376
Moore, Teresa A. and Okumura, Mitchio, et el. (1995) Dissociation Dynamics of ClONO_2 and Relative Cl and ClO
Product Yields following Photoexcitation at 308 nm ; Faraday Discussions; Vol. 100; 295-307; 10.1039/FD9950000295
Moore, Teresa A. and Okumura, Mitchio, et el. (1995) Dissociation Dynamics of CIONO_2 and Relative Cl and ClO
Product Yields following Photoexcitation at 308 nm ; Faraday Discussions; Vol. 100; 295-307; 10.1039/FD9950000295
Haas, Bernd-Michael and Crellin, Kevin C., et el. (1994) Reaction of Chloride Ions with Chlorine Nitrate and Its Implications for Stratospheric Chemistry ; Journal of Physical Chemistry; Vol. 98; No. 27; 6740-6745; 10.1021/j100078a015
Nelson, Christine M. and Moore, Teresa A., et el. (1994) Primary and secondary dissociation pathways in the ultraviolet photolysis of Cl_2O ; Journal of Chemical Physics; Vol. 100; No. 11; 8055-8064; 10.1063/1.466799
Choi, Jong-Ho and Kuwata, Keith T., et el. (1994) Vibrational spectroscopy of NO^+(H_2O)_n: Evidence for the intracluster reaction NO^+(H_2O)n→H_3O^+(H_2O) (n-2)(HONO) at n≥4 ; Journal of Chemical Physics; Vol. 100; No. 10; 7153-7165; 10.1063/1.466914
Cao, Yibin and Choi, Jong-Ho, et el. (1993) lntracluster rearrangement of protonated nitric acid: Infrared spectroscopic studies of H^+(HNO_3)(H_2O)_n ; Journal of Chemical Physics; Vol. 99; No. 11; 9307-9309; 10.1063/1.465547
Nelson, Christine M. and Okumura, Mitchio (1992) Reaction of chlorine nitrate with protonated water clusters: a model for heterogeneous reactions on polar stratospheric clouds ; Journal of Physical Chemistry; Vol. 96; No. 15; 6112-6115; 10.1021/j100194a003
Chan, Man-Chor and Lee, Szetsen S., et el. (1991) Laser spectroscopic studies of the pure rotational U_0(0) and W_0(0) transitions of solid parahydrogen ; Journal of Chemical Physics; Vol. 95; No. 1; 88-97; 10.1063/1.461821
Chan, Man-Chor and Okumura, Mitchio, et el. (1991) High-resolution infrared spectroscopy of solid hydrogen ; Physical Review Letters; Vol. 66; No. 16; 2060-2063; 10.1103/PhysRevLett.66.2060
Yeh, L. I. and Okumura, M., et el. (1989) Vibrational spectroscopy of the hydrated hydronium cluster ions H3O+·(H2O)n (n=1, 2, 3) ; Journal of Chemical Physics; Vol. 91; No. 12; 7319-7330; 10.1063/1.457305
Bawendi, M. G. and Rehfuss, B. D., et el. (1989) Observation and analysis of the nu3 band of NH3+ ; Journal of Chemical Physics; Vol. 90; No. 11; 5910-5917; 10.1063/1.456356
Okumura, M. and Rehfuss, B. D., et el. (1989) Difference frequency laser spectroscopy of the nu3 fundamental band of NH<sup> + </sup><sub>2</sub> ; Journal of Chemical Physics; Vol. 90; No. 11; 5918-5923; 10.1063/1.456357
Okumura, Mitchio and Chan, Man-Chor, et el. (1989) High-Resolution Infrared Spectroscopy of Solid Hydrogen: The Tetrahexacontapole-Induced ΔJ=6 Transitions ; Physical Review Letters; Vol. 62; No. 1; 32-35; 10.1103/PhysRevLett.62.32
Okumura, M. and Yeh, L. I., et el. (1988) Infrared spectroscopy of the cluster ions H<sup> + </sup><sub>3</sub>·(H2)n ; Journal of Chemical Physics; Vol. 88; No. 1; 79-91; 10.1063/1.454488
Okumura, M. and Yeh, L. I., et el. (1987) Radiative decay lifetimes of CH<sup> - </sup><sub>2</sub> ; Journal of Chemical Physics; Vol. 86; No. 7; 3807-3815; 10.1063/1.451939
Bustamente, S. W. and Okumura, M., et el. (1987) Spin-forbidden radiative decay of the a 4Piu state of O<sup> + </sup><sub>2</sub> ; Journal of Chemical Physics; Vol. 86; No. 2; 508-515; 10.1063/1.452302
Okumura, M. and Yeh, L. I., et el. (1986) The lifetimes for spontaneous emission from the X 3Sigma−(v=1) and a 1Delta states of CH− ; Journal of Chemical Physics; Vol. 85; No. 4; 1971-1976; 10.1063/1.451140
Okumura, M. and Yeh, L. I., et el. (1986) Infrared spectra of the cluster ions H7O<sup> + </sup><sub>3</sub>·H2 and H9O<sup> + </sup><sub>4</sub>·H2 ; Journal of Chemical Physics; Vol. 85; No. 4; 2326-2327; 10.1063/1.451079
Okumura, M. and Yeh, L. I., et el. (1985) The vibrational predissociation spectroscopy of hydrogen cluster ions ; Journal of Chemical Physics; Vol. 83; No. 7; 3705-3706; 10.1063/1.449127
Davies, P. B. and Hamilton, P. A., et el. (1981) Infrared diode laser spectroscopy of the fundamental band of NF(a1Δ) ; Journal of Chemical Physics; Vol. 75; No. 9; 4294-4297; 10.1063/1.442634
