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Kokoouline V, Alijah A, Tyuterev V. Lifetimes and decay mechanisms of isotopically substituted ozone above the dissociation threshold: matching quantum and classical dynamics. Phys Chem Chem Phys 2024; 26:4614-4628. [PMID: 38251711 DOI: 10.1039/d3cp04286c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Energies and lifetimes of vibrational resonances were computed for 18O-enriched isotopologue 50O3 = {16O16O18O and 16O18O16O} of the ozone molecule using hyperspherical coordinates and the method of complex absorbing potential. Various types of scattering resonances were identified, including roaming OO-O rotational states, the series corresponding to continuation of bound vibrational resonances of highly excited bending or symmetric stretching vibrational modes. Such a series become metastable above the dissociation limit. The coupling between the vibrationally excited O2 fragment and rotational roaming gives rise to Feshbach type resonances in ozone. Different paths for the formation and decay of symmetric 16O18O16O and asymmetric species 16O16O18O were also identified. The symmetry properties of the total rovibronic wave functions of the 18O-enriched isotopologues are discussed in the context of allowed dissociation channels.
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Affiliation(s)
| | - Alexander Alijah
- Groupe de Spectrometrie Moléculaire et Atmospherique, UMR CNRS 7331, University of Reims Champagne-Ardenne, Reims Cedex 2, F-51687, France
| | - Vladimir Tyuterev
- Laboratory of Molecular Quantum Mechanics and Radiative transfer, Tomsk State University, Tomsk, Russia
- Laboratory of Theoretical Spectroscopy, V.E. Zuev Institute of Atmospheric Optics, Russian Academy of Sciences, Tomsk, 634055, Russia
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Krim L, Jonusas M, Lemaire JL, Vidali G. Formation of ozone by solid state reactions. Phys Chem Chem Phys 2018; 20:19750-19758. [PMID: 29952384 DOI: 10.1039/c8cp03020k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We studied the isotopic composition of ozone formed at low (3-10 K) temperature via O + O2 solid state reactions using a partially dissociated 16O/16O2 : 18O/18O2 = 1 : 1 mixture. The ozone ice has an isotopic abundance that differs from the statistical one and from gas phase studies. Ozone formation is influenced by the competition of the production of O2 (O + O or O + O3) vs. O3 (O + O2) and by the energy released in the O + O reaction. The exothermicity of the O + O reaction helps to overcome the barrier of the O + O2 reaction. Heating the ozone ice past 50 K brings about a transformation from amorphous to crystalline ice. The formation of ozone on water ice yields a blue shift of IR bands, and the yield of formed O3 increases up to the sample temperature of 100 K. When 18O/18O2 is deposited on H216O ice, formation of 18O18O16O is detected. We propose that the exothermicity of the reaction 18O + 18O drives water dissociation (16O + H2) followed by ozone formation (16O + 18O2 → 16O18O18O).
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Affiliation(s)
- Lahouari Krim
- Sorbonne Université, CNRS, MONARIS, UMR 8233, 4 place Jussieu, Paris, F-75005, France.
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Walters WW, Michalski G. Ab initio study of nitrogen and position-specific oxygen kinetic isotope effects in the NO + O 3 reaction. J Chem Phys 2016; 145:224311. [PMID: 27984902 DOI: 10.1063/1.4968562] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Ab initio calculations have been carried out to investigate nitrogen (k15/k14) and position-specific oxygen (k17/k16O & k18/k16) kinetic isotope effects (KIEs) for the reaction between NO and O3 using CCSD(T)/6-31G(d) and CCSD(T)/6-311G(d) derived frequencies in the complete Bigeleisen equations. Isotopic enrichment factors are calculated to be -6.7‰, -1.3‰, -44.7‰, -14.1‰, and -0.3‰ at 298 K for the reactions involving the 15N16O, 14N18O, 18O16O16O, 16O18O16O, and 16O16O18O isotopologues relative to the 14N16O and 16O3 isotopologues, respectively (CCSD(T)/6-311G(d)). Using our oxygen position-specific KIEs, a kinetic model was constructed using Kintecus, which estimates the overall isotopic enrichment factors associated with unreacted O3 and the oxygen transferred to NO2 to be -19.6‰ and -22.8‰, respectively, (CCSD(T)/6-311G(d)) which tends to be in agreement with previously reported experimental data. While this result may be fortuitous, this agreement suggests that our model is capturing the most important features of the underlying physics of the KIE associated with this reaction (i.e., shifts in zero-point energies). The calculated KIEs will useful in future NOx isotopic modeling studies aimed at understanding the processes responsible for the observed tropospheric isotopic variations of NOx as well as for tropospheric nitrate.
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Affiliation(s)
- Wendell W Walters
- Department of Earth, Atmospheric, and Planetary Sciences Purdue University, 550 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
| | - Greg Michalski
- Department of Earth, Atmospheric, and Planetary Sciences Purdue University, 550 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
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Bhattacharya SK, Savarino J, Michalski G, Liang MC. A new feature in the internal heavy isotope distribution in ozone. J Chem Phys 2014; 141:134301. [DOI: 10.1063/1.4895614] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Probing the unusual isotope effects in ozone formation: Bath gas and pressure dependence of the non-mass-dependent isotope enrichments in ozone. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2012.10.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Berhanu TA, Savarino J, Bhattacharya SK, Vicars WC. 17O excess transfer during the NO2 + O3 → NO3 + O2 reaction. J Chem Phys 2012; 136:044311. [DOI: 10.1063/1.3666852] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Jarvis JC, Hastings MG, Steig EJ, Kunasek SA. Isotopic ratios in gas-phase HNO3and snow nitrate at Summit, Greenland. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2009jd012134] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bhattacharya SK, Savarino J, Luz B. Mass-Dependent Isotopic Fractionation in Ozone Produced by Electrolysis. Anal Chem 2009; 81:5226-32. [DOI: 10.1021/ac900283q] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- S. K. Bhattacharya
- Earth Sciences Division, Physical Research Laboratory, Ahmedabad, Gujarat 380009, India
| | - Joel Savarino
- Laboratoire de Glaciologie et Géophysique de l’Environnement, CNRS/Grenoble Université, St. Martin d’Hères, France
| | - Boaz Luz
- The Institute of Earth Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel
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Morin S, Savarino J, Frey MM, Domine F, Jacobi HW, Kaleschke L, Martins JMF. Comprehensive isotopic composition of atmospheric nitrate in the Atlantic Ocean boundary layer from 65°S to 79°N. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010696] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kunasek SA, Alexander B, Steig EJ, Hastings MG, Gleason DJ, Jarvis JC. Measurements and modeling of Δ17O of nitrate in snowpits from Summit, Greenland. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jd010103] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Savarino J, Bhattacharya SK, Morin S, Baroni M, Doussin JF. The NO+O3 reaction: A triple oxygen isotope perspective on the reaction dynamics and atmospheric implications for the transfer of the ozone isotope anomaly. J Chem Phys 2008; 128:194303. [DOI: 10.1063/1.2917581] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bhattacharya SK, Pandey A, Savarino J. Determination of intramolecular isotope distribution of ozone by oxidation reaction with silver metal. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2006jd008309] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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McCabe JR, Thiemens MH, Savarino J. A record of ozone variability in South Pole Antarctic snow: Role of nitrate oxygen isotopes. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007822] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Krankowsky D, Lämmerzahl P, Mauersberger K, Janssen C, Tuzson B, Röckmann T. Stratospheric ozone isotope fractionations derived from collected samples. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007855] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Pandey A, Bhattacharya SK. Anomalous oxygen isotope enrichment in CO2 produced from O+CO: estimates based on experimental results and model predictions. J Chem Phys 2006; 124:234301. [PMID: 16821912 DOI: 10.1063/1.2206584] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The oxygen isotope fractionation associated with O+CO-->CO(2) reaction was investigated experimentally where the oxygen atom was derived from ozone or oxygen photolysis. The isotopic composition of the product CO(2) was analyzed by mass spectrometry. A kinetic model was used to calculate the expected CO(2) composition based on available reaction rates and their modifications for isotopic variants of the participating molecules. A comparison of the two (experimental data and model predictions) shows that the product CO(2) is endowed with an anomalous enrichment of heavy oxygen isotopes. The enrichment is similar to that observed earlier in case of O(3) produced by O+O(2) reaction and varies from 70 0/00 to 136 0/00 for (18)O and 41 0/00 to 83 0/00 for (17)O. Cross plot of delta (17)O and delta (18)O of CO(2) shows a linear relation with slope of approximately 0.90 for different experimental configurations. The enrichment observed in CO(2) does not depend on the isotopic composition of the O atom or the sources from which it is produced. A plot of Delta(delta (17)O) versus Delta(delta (18)O) (two enrichments) shows linear correlation with the best fit line having a slope of approximately 0.8. As in case of ozone, this anomalous enrichment can be explained by invoking the concept of differential randomization/stabilization time scale for two types of intermediate transition complex which forms symmetric ((16)O(12)C(16)O) molecule in one case and asymmetric ((16)O(12)C(18)O and (16)O(12)C(17)O) molecules in the other. The delta (13)C value of CO(2) is also found to be different from that of the initial CO due to the mass dependent fractionation processes that occur in the O+CO-->CO(2) reaction. Negative values of Delta(delta (13)C) ( approximately 12.1 0/00) occur due to the preference of (12)C in CO(2)* formation and stabilization. By contrast, at lower pressures (approximately 100 torr) surface induced deactivation makes Delta(delta (13)C) zero or slightly positive.
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Affiliation(s)
- Antra Pandey
- Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India
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Tuzson B, Janssen C. Unambiguous identification of (17)O containing ozone isotopomers for symmetry selective detection. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2006; 42:67-75. [PMID: 16500756 DOI: 10.1080/10256010500503130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Symmetry selective detection of the (17)O containing ozone isotopomers (16)O(16)O(17)O and (16)O(17)O(16)O requires the unambiguous identification of absorption lines. We report high resolution tuneable diode laser spectrometer measurements of (17)O containing ozone isotopomers in the R-branch of the nu3 band and present a purely experimental technique that discriminates between (16)O(16)O(17)O and (16)O(17)O(16)O. Around 1040 cm(-1), differences in line positions of (16)O(17)O(16)O upto 4 x 10(-3) cm(-1) between our measurements and present spectroscopic database records (HITRAN 2004) are found.
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Affiliation(s)
- Béla Tuzson
- Max-Planck-Institut für Kernphysik, Bereich Atmosphärenphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
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