1
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Affiliation(s)
| | - A. J. C. Varandas
- Department of Chemistry, University of Coimbra, Coimbra, Portugal
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, People's Republic of China
- Department of Physics, Universidade Federal do Espírito Santo, Vitória, Brazil
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2
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Tang X, Lin X, Garcia GA, Loison JC, Fittschen C, Röder A, Schleier D, Gu X, Zhang W, Nahon L. Threshold photoelectron spectroscopy of the HO 2 radical. J Chem Phys 2020; 153:124306. [PMID: 33003730 DOI: 10.1063/5.0022410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report a synchrotron radiation vacuum ultraviolet photoionization study of the hydroperoxyl radical (HO2), a key reaction intermediate in combustion and atmospheric chemistry as well as astrochemistry, using double imaging photoelectron photoion coincidence spectroscopy. The HO2 radical is formed in a microwave discharge flow tube reactor through a set of reactions initiated by F atoms in a CH4/O2/He gas mixture. The high-resolution threshold photoelectron spectrum of HO2 in the 11 eV-12 eV energy range is acquired without interferences from other species and assigned with the aid of theoretically calculated adiabatic ionization energies (AIEs) and Franck-Condon factors. The three vibrational modes of the radical cation HO2 +, the H-O stretch, the H-O-O bend, and the O-O stretch, have been identified, and their individual frequencies are measured. In addition, the AIEs of the X3A″ ground state and the a1A' first excited electronic state of HO2 + are experimentally determined at 11.359 ± 0.003 eV and 11.639 ± 0.005 eV, respectively, in agreement with high-level theoretically computed results. Furthermore, the former AIE value provides validation of thermochemical networks used to extract the enthalpy of formation of the HO2 radical.
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Affiliation(s)
- Xiaofeng Tang
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Xiaoxiao Lin
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Gustavo A Garcia
- Synchrotron SOLEIL, L'Orme des Merisiers, St. Aubin, BP 48, 91192 Gif sur Yvette, France
| | - Jean-Christophe Loison
- Institut des Sciences Moléculaires (ISM), CNRS, Univ. Bordeaux, 351 cours de la Liber̀ation, 33400 Talence, France
| | - Christa Fittschen
- University Lille, CNRS, UMR 8522, PC2A-Physicochimie des Processus de Combustion et de l'Atmosphère, F-59000 Lille, France
| | - Anja Röder
- Institute of Physical and Theoretical Chemistry, University of Wurzburg, Am Hubland, D-97074 Wurzburg, Germany
| | - Domenik Schleier
- Institute of Physical and Theoretical Chemistry, University of Wurzburg, Am Hubland, D-97074 Wurzburg, Germany
| | - Xuejun Gu
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Weijun Zhang
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Laurent Nahon
- Synchrotron SOLEIL, L'Orme des Merisiers, St. Aubin, BP 48, 91192 Gif sur Yvette, France
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3
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Galbács G, Kéri A, Kálomista I, Kovács-Széles É, Gornushkin IB. Deuterium analysis by inductively coupled plasma mass spectrometry using polyatomic species: An experimental study supported by plasma chemistry modeling. Anal Chim Acta 2020; 1104:28-37. [PMID: 32106954 DOI: 10.1016/j.aca.2020.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/20/2019] [Accepted: 01/05/2020] [Indexed: 11/25/2022]
Abstract
A new analytical method is proposed for the determination of deuterium (D) by ICP-MS. The method is based on the use of the signal from hydrogen-containing polyatomic ions formed in the inductively coupled plasma. Prior to analytical experiments, a theoretical study was performed to assess the concentration of polyatomic species present in an equilibrium Ar-O-D-H plasma, as a function of temperature and stoichiometric composition. It was established that the highest sensitivity and linearity measurement of D concentration in a wide range can be achieved by monitoring the ions of D2 and ArD, at masses 4 and 42, respectively. Results of the calculations are in good agreement with the experiments. Signal stability, spectral interferences, as well as the effect of plasma parameters were also assessed. Under optimized conditions, the limit of detection (LOD) was found to be 3 ppm atom fraction for deuterium when measured as ArD (in calcium and potassium free water), or 78 ppm when measured as D2. The achieved LOD values and the 4 to 5 orders of magnitude dynamic range easily allow the measurement of deuterium concentrations at around or above the natural level, up to nearly 100% (or 1 Mio ppm) in a standard quadrupole ICP-MS instrument. An even better performance is expected from the method in high resolution ICP-MS instruments equipped with low dead volume sample introduction systems.
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Affiliation(s)
- Gábor Galbács
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm Square 7, 6720, Szeged, Hungary.
| | - Albert Kéri
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm Square 7, 6720, Szeged, Hungary
| | - Ildikó Kálomista
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm Square 7, 6720, Szeged, Hungary
| | - Éva Kovács-Széles
- Nuclear Security Department, MTA Centre for Energy Research, Konkoly Thege Miklós Street 29-33, 1121, Budapest, Hungary
| | - Igor B Gornushkin
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Strasse 11, 12489, Berlin, Germany
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4
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Xavier FGD, González MM, Varandas AJC. Global Potential Energy Surface for HO 2+ Using the CHIPR Method. J Phys Chem A 2019; 123:1613-1621. [PMID: 30707025 DOI: 10.1021/acs.jpca.8b12005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An analytical potential energy function for the title ion based on the combined hyperbolic inverse power representation (CHIPR) method and its characteristics are discussed at length in the present work. The curves of two diatomic ions, O2+ and OH+, are also obtained within the same approach. The model PES so obtained exhibits extraordinary flexibility in describing with subchemical accuracy even the weak topological features near the higher energy regions. Thus, structural properties predicted by the model may help spectroscopists who want to compare their experimental values with the ones from theory. The relaxed PESs in various coordinates have been calculated by relaxing the O2 bond distance using the present model, thus throwing light on all the possible isomers and their interconversions. The latest estimates of IR frequencies for three vibrational modes have been compared with the computed frequencies using the present model, and the agreement seems encouraging.
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Affiliation(s)
- F George D Xavier
- Department of Chemistry , University of Coimbra , 3004-525 Coimbra , Portugal
| | - M Martínez González
- Department of Chemistry , University of Coimbra , 3004-525 Coimbra , Portugal.,Facultad de Química , Universidad de La Habana , calle San Lázaro sn. , 10400 La Habana , Cuba
| | - A J C Varandas
- Department of Chemistry , University of Coimbra , 3004-525 Coimbra , Portugal.,School of Physics and Physical Engineering , Qufu Normal University , 273165 Qufu , China
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5
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Kohguchi H, Jusko P, Yamada KMT, Schlemmer S, Asvany O. High-resolution infrared spectroscopy of O 2H + in a cryogenic ion trap. J Chem Phys 2018; 148:144303. [PMID: 29655341 DOI: 10.1063/1.5023633] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The protonated oxygen molecule, O2H+, and its helium complex, He-O2H+, have been investigated by vibrational action spectroscopy in a cryogenic 22-pole ion trap. For the He-O2H+ complex, the frequencies of three vibrational bands have been determined by predissociation spectroscopy. The elusive O2H+ has been characterized for the first time by high-resolution rovibrational spectroscopy via its ν1 OH-stretching band. Thirty-eight rovibrational fine structure transitions with partly resolved hyperfine satellites were measured (56 resolved lines in total). Spectroscopic parameters were determined by fitting the observed lines with an effective Hamiltonian for an asymmetric rotor in a triplet electronic ground state, X̃3A'', yielding a band origin at 3016.73 cm-1. Based on these spectroscopic parameters, the rotational spectrum is predicted, but not yet detected.
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Affiliation(s)
- Hiroshi Kohguchi
- Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima 739-8526, Japan
| | - Pavol Jusko
- I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | | | - Stephan Schlemmer
- I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - Oskar Asvany
- I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
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6
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Accurate ab initio potential for HO2+: CBS extrapolated energies and direct-fit diatomic curves. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.11.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Ganyecz Á, Csontos J, Nagy B, Kállay M. Theoretical and thermochemical network approaches to determine the heats of formation for HO2 and its ionic counterparts. J Phys Chem A 2015; 119:1164-76. [PMID: 25611209 DOI: 10.1021/jp5104643] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ádám Ganyecz
- MTA-BME Lendület Quantum Chemistry Research Group, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics , P.O. Box 91, H-1521 Budapest, Hungary
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8
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Jacox ME, Thompson WE. Infrared Spectra of Products of the Reaction of H Atoms with O2 Trapped in Solid Neon: HO2, HO2+, HOHOH–, and H2O(HO). J Phys Chem A 2012; 117:9380-90. [DOI: 10.1021/jp310849s] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marilyn E. Jacox
- Sensor
Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland
20899-8441, United States
| | - Warren E. Thompson
- Sensor
Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland
20899-8441, United States
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9
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Thompson WE, Lugez CL, Jacox ME. The infrared spectrum of HOOH+ trapped in solid neon. J Chem Phys 2012; 137:144305. [DOI: 10.1063/1.4757389] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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10
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Kuz’min IV, Solkan VN, Zhidomirov GM, Kazanskii VB. Modeling of the mechanism of one-electron transfer from the perylene molecule to the oxygen molecule 3O2 in the HF medium. KINETICS AND CATALYSIS 2011. [DOI: 10.1134/s002315841102011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Xavier FGD, Kumar S. Ab initio adiabatic and quasidiabatic potential energy surfaces of lowest four electronic states of the H+ + O2 system. J Chem Phys 2010; 133:164304. [PMID: 21033785 DOI: 10.1063/1.3495956] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Ab initio global adiabatic and quasidiabatic potential energy surfaces of lowest four electronic (1-4 (3)A(")) states of the H(+)+O(2) system have been computed in the Jacobi coordinates (R,r,γ) using Dunning's cc-pVTZ basis set at the internally contracted multireference (single and double) configuration interaction level of accuracy, which are relevant to the dynamics studies of inelastic vibrational and charge transfer processes observed in the scattering experiments. The computed equilibrium geometry parameters of the bound [HO(2)](+) ion in the ground electronic state and other parameters for the transition state for the isomerization process, HOO(+)⇌OOH(+) are in good quantitative agreement with those available from the high level ab initio calculations, thus lending credence to the accuracy of the potential energy surfaces. The nonadiabatic couplings between the electronic states have been analyzed in both the adiabatic and quasidiabatic frameworks by computing the nonadiabatic coupling matrix elements and the coupling potentials, respectively. It is inferred that the dynamics of energy transfer processes in the scattering experiments carried out in the range of 9.5-23 eV would involve all the four electronic states.
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Affiliation(s)
- F George D Xavier
- Department of chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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12
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Huang X, Lee TJ. A procedure for computing accurateab initioquartic force fields: Application to HO2+ and H2O. J Chem Phys 2008; 129:044312. [DOI: 10.1063/1.2957488] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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13
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Pavel Rosmus. Mol Phys 2007. [DOI: 10.1080/00268970701532807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Roth D, Dopfer O. Site-specific interaction between hydrocarbon cations and inert ligands: IR spectra of isomeric C3H3+–L dimers (L = Ne,Ar,O2,N2,CO2). Phys Chem Chem Phys 2002. [DOI: 10.1039/b206170h] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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