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Valadbeigi Y, Gal JF. Noble gas cations as Lewis acids: Adduct formation with Lewis bases with high ionization energies. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2023.111918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Krohn OA, Catani KJ, Greenberg J, Sundar SP, da Silva G, Lewandowski HJ. Isotope-specific reactions of acetonitrile (CH 3CN) with trapped, translationally cold CCl . J Chem Phys 2021; 154:074305. [PMID: 33607907 DOI: 10.1063/5.0038113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The gas-phase reaction of CCl+ with acetonitrile (CH3CN) is studied using a linear Paul ion trap coupled to a time-of-flight mass spectrometer. This work builds on a previous study of the reaction of CCl+ with acetylene [K. J. Catani et al., J. Chem. Phys. 152, 234310 (2020)] and further explores the reactivity of CCl+ with organic neutral molecules. Both of the reactant species are relevant in observations and models of chemistry in the interstellar medium. Nitriles, in particular, are noted for their relevance in prebiotic chemistry and are found in the atmosphere of Titan, one of Saturn's moons. This work represents one of the first studied reactions of a halogenated carbocation with a nitrile and the first exploration of CCl+ with a nitrile. Reactant isotopologues are used to unambiguously assign ionic primary products from this reaction: HNCCl+ and C2H3 +. Branching ratios are measured, and both primary products are determined to be equally probable. Quantum chemical and statistical reaction rate theory calculations illuminate pertinent information for interpreting the reaction data, including reaction thermodynamics and a potential energy surface for the reaction, as well as rate constants and branching ratios for the observed products. In particular, the reaction products and potential energy surface stimulate questions regarding the strength and role of the nitrile functional group, which can be further explored with more reactions of this class.
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Affiliation(s)
- O A Krohn
- Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - K J Catani
- Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - J Greenberg
- Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - S P Sundar
- Department of Chemical Engineering, The University of Melbourne, Parkville 3010, Victoria, Australia
| | - G da Silva
- Department of Chemical Engineering, The University of Melbourne, Parkville 3010, Victoria, Australia
| | - H J Lewandowski
- Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
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Pei L, Farrar JM. A Velocity Map Imaging Study of the Reactions of O+ (4S) With CH4. Front Chem 2019; 7:227. [PMID: 31032248 PMCID: PMC6473029 DOI: 10.3389/fchem.2019.00227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 03/22/2019] [Indexed: 11/16/2022] Open
Abstract
We present a velocity map imaging study of the key ion-molecule reactions occurring in the O+(4S3/2) + CH4 (X1A1) system at collision energies of 1.84 and 2.14 eV. In addition to charge transfer to form CH4+ (X2B2), we also present data on formation of CH3+ (X1A1'), for which the experimentally determined images provide clear confirmation that the products arise from dissociative charge transfer rather than hydride transfer. Experimental data are also presented on the formation of HCO+ through a transient [OCH4]+ complex living many rotational periods. Plausible reaction pathways and intermediate structures are presented to give insight into the routes for formation of these reaction products.
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Španěl P, Spesyvyi A, Smith D. Electrostatic Switching and Selection of H3O+, NO+, and O2+• Reagent Ions for Selected Ion Flow-Drift Tube Mass Spectrometric Analyses of Air and Breath. Anal Chem 2019; 91:5380-5388. [DOI: 10.1021/acs.analchem.9b00530] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Patrik Španěl
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
| | - Anatolii Spesyvyi
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
| | - David Smith
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
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Pei L, Farrar JM. Ion-molecule reaction dynamics: Velocity map imaging studies of N(+) and O(+) with CD3OD. J Chem Phys 2015; 143:084304. [PMID: 26328840 DOI: 10.1063/1.4929389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a study of the charge transfer reactions of the atomic ions N(+)and O(+) with methanol in the collision energy range from ∼2 to 4 eV. Charge transfer is driven primarily by energy resonance, although the widths of the product kinetic energy distributions suggest that significant interchange between relative translation and product vibration occurs. Charge transfer with CD3OD is more exoergic for N(+), and the nascent parent ion products appear to be formed in excited B̃ and C̃ electronic states, and fragment to CD2OD(+) by internal conversion and vibrational relaxation to the ground electronic state. The internal excitation imparted to the parent ion is sufficient to result in loss of one or two D atoms from the carbon atom. The less exoergic charge transfer reaction of O(+) forms nascent parent ions in the excited à state, and internal conversion to the ground state only results in ejection of single D atom. Selected isotopomers of methanol were employed to identify reaction products, demonstrating that deuterium atom loss from nascent parent ions occurs by C-D bond cleavage. Comparison of the kinetic energy distributions for charge transfer to form CD3OD(+) and CD2OD(+) by D atom loss with the known dynamics for hydride abstraction from a carbon atom provides strong evidence that the D loss products are formed by dissociative charge transfer rather than hydride (deuteride) transfer. Isotopic labeling also demonstrates that chemical reaction in the N(+) + CD3OD system to form NO(+) + CD4 does not occur in the energy range of these experiments, contrary to earlier speculation in the literature.
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Affiliation(s)
- Linsen Pei
- Department of Chemistry, University of Rochester, Rochester, New York 14627, USA
| | - James M Farrar
- Department of Chemistry, University of Rochester, Rochester, New York 14627, USA
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Cunha de Miranda B, Romanzin C, Chefdeville S, Vuitton V, Žabka J, Polášek M, Alcaraz C. Reactions of State-Selected Atomic Oxygen Ions O(+)((4)S, (2)D, (2)P) with Methane. J Phys Chem A 2015; 119:6082-98. [PMID: 25721439 DOI: 10.1021/jp512846v] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An experimental study has been carried out on the reactions of state selected O(+)((4)S, (2)D, (2)P) ions with methane with the aims of characterizing the effects of both the parent ion internal energy and collision energy on the reaction dynamics and determining the fate of oxygen species in complex media, in particular the Titan ionosphere. Absolute cross sections and product velocity distributions have been determined for the reactions of (16)O(+) or (18)O(+) ions with CH4 or CD4 from thermal to 5 eV collision energies by using the guided ion beam (GIB) technique. Dissociative photoionization of O2 with vacuum ultraviolet (VUV) synchrotron radiation delivered by the DESIRS beamline at the SOLEIL storage ring and the threshold photoion photoelectron coincidence (TPEPICO) technique are used for the preparation of purely state-selected O(+)((4)S, (2)D, (2)P) ions. A complete inversion of the product branching ratio between CH4(+) and CH3(+) ions in favor of the latter is observed for excitation of O(+) ions from the (4)S ground state to either the (2)D or the (2)P metastable state. CH4(+) and CH3(+) ions, which are by far the major products for the reaction of ground state and excited states, are strongly backward scattered in the center of mass frame relative to O(+) parent ions. For the reaction of O(+)((4)S), CH3(+) production also rises with increasing collision energy but with much less efficiency than with O(+) excitation. We found that a mechanism of dissociative charge transfer, mediated by an initial charge transfer step, can account very well for all the observations, indicating that CH3(+) production is associated with the formation of H and O atoms (CH3(+) + H + O) rather than with OH formation by an hydride transfer process (CH3(+) + OH). Therefore, as the CH4(+) production by charge transfer is also associated with O atoms, the fate of oxygen species in these reactions is essentially the O production, except for the reaction of O(+)((4)S), which also produces appreciable amounts of H2O(+) ions but only at very low collision energy. The production of O atoms and the nature of the states in which they are formed are discussed for the reactions of O(+) ions with CH4 and N2.
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Affiliation(s)
- Barbara Cunha de Miranda
- †Laboratoire de Chimie Physique, UMR 8000 CNRS-Univ. Paris Sud, Bât. 350, FR-91405 Orsay Cedex, France.,‡Laboratório de Espectroscopia e Laser, Instituto de Física, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, Boa Viagem, Niterói, RJ BR-24210-340, Brazil.,§Synchrotron SOLEIL, L'Orme des Merisiers, BP 48, St Aubin, FR-91192 Gif sur Yvette, France
| | - Claire Romanzin
- †Laboratoire de Chimie Physique, UMR 8000 CNRS-Univ. Paris Sud, Bât. 350, FR-91405 Orsay Cedex, France
| | - Simon Chefdeville
- †Laboratoire de Chimie Physique, UMR 8000 CNRS-Univ. Paris Sud, Bât. 350, FR-91405 Orsay Cedex, France
| | | | - Jan Žabka
- ⊥J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Miroslav Polášek
- ⊥J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Christian Alcaraz
- †Laboratoire de Chimie Physique, UMR 8000 CNRS-Univ. Paris Sud, Bât. 350, FR-91405 Orsay Cedex, France.,§Synchrotron SOLEIL, L'Orme des Merisiers, BP 48, St Aubin, FR-91192 Gif sur Yvette, France
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Wakelam V, Loison JC, Herbst E, Pavone B, Bergeat A, Béroff K, Chabot M, Faure A, Galli D, Geppert WD, Gerlich D, Gratier P, Harada N, Hickson KM, Honvault P, Klippenstein SJ, Picard SDL, Nyman G, Ruaud M, Schlemmer S, Sims IR, Talbi D, Tennyson J, Wester R. THE 2014 KIDA NETWORK FOR INTERSTELLAR CHEMISTRY. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0067-0049/217/2/20] [Citation(s) in RCA: 238] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Parkes MA, Simpson MJ, Mikhailov V, Tuckett RP. The kinetics and product state distributions from gas-phase reactions of small atomic and molecular cations with C2H4, C2H3F, 1,1-C2H2F2, C2HF3 and C2F4. Phys Chem Chem Phys 2014; 16:3726-38. [PMID: 24418988 DOI: 10.1039/c3cp54881c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of twenty one gas-phase cations with C2H3F, 1,1-C2H2F2, C2HF3 and C2F4 have been studied in a selected ion flow tube at 298 K. The cations are both atomic and molecular with recombination energies in the range 6-22 eV, and the kinetics and branching ratios into product ions are revealed for all the reactions. These data, together with that from an earlier study of reactions of C(x)F(y)(+) with these four fluorinated ethenes (J. Phys. Chem. A., 2012, 116, 8119), are compared with the reactions of these ions with C2H4, where available. Nearly all the reactions have a rate coefficient close to the collisional value calculated by either Langevin or modified average dipole orientation theories. The products of the reactions of N(+) and N2(+) with C2H4 are found to be anomalous, compared to their reactions with the four fluorinated ethenes. The branching ratios into product cations are compared with those from a high resolution (ca. 0.002 eV) photoionisation (hν = 10-22 eV) study of C2H3F, 1,1-C2H2F2, C2HF3 and C2F4 (Phys. Chem. Chem. Phys., 2012, 14, 3935) in order to gauge the importance of electron transfer in ion-molecule reactions. The higher the recombination energy of the cation, the better the agreement between the two sets of product branching ratios. Where there is disagreement at lower recombination energies, it appears that there is more fragmentation of the products in the photoionisation experiment compared to the ion-molecule reactions.
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Affiliation(s)
- Michael A Parkes
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
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Nichols CM, Yang Z, Worker BB, Hager DR, Nibbering NMM, Bierbaum VM. Gas-phase reactions of the atomic oxygen radicalcation with halogenated compounds. Phys Chem Chem Phys 2013; 15:561-7. [DOI: 10.1039/c2cp43183a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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de Petris G, Troiani A, Rosi M, Angelini G, Ursini O. Methane activation by metal-free radical cations: experimental insight into the reaction intermediate. Chemistry 2009; 15:4248-52. [PMID: 19291717 DOI: 10.1002/chem.200802581] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A precise jab to methane: The SO(2)(*+) radical cation (see figure) effectively activates CH(4) at room temperature through a [H(3)C(*)...HOSO(+)] methyl intermediate isolated in the gas phase by mass spectrometry. Methanol and ionized methyl hydrogen sulfoxylate, CH(3)OSOH(*+), are formed by selective, direct attack of the incipient methyl radical at the O atom of the intermediate. The reaction shows radical and charge effects in the activation of methane by metal-free radical cations.
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Affiliation(s)
- Giulia de Petris
- Dipartimento di Chimica e Tecnologie del Farmaco, Università La Sapienza, P.le Aldo Moro 5, 00185 Roma, Italy.
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Ndome H, Alcaraz C, Hochlaf M. OOCO+ cation. II. Its role during the atmospheric ion-molecule reactions. J Chem Phys 2007; 127:064313. [PMID: 17705602 DOI: 10.1063/1.2752810] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
For the charge transfer and vibrational and electronic deexcitations between O2/O2+ + CO+/CO, O/O+ + CO2+/CO2, and C/C+ + O3+/O3, multistep reaction pathways are discussed in light of the theoretical data of this and previous paper together with close comparison with the experimental observations. Our calculations show that these pathways involve both the long range and molecular region ranges of the potential energy surfaces of the electronic states of the stable isomers of OOCO+ and mostly those of the weakly bound charge transfer complex OOCO+. The couplings between these electronic states such as vibronic, Renner-Teller, Jahn-Teller, and spin orbit are viewed to play crucial roles here. Moreover, the initial orientation of the reactants, in the entrance channels, strongly influences the reaction mechanisms undertaken. We propose for the first time a mechanism for the widely experimentally studied spin-forbidden exothermic O+((4)S(u))+CO2(X (1)Sigmag+)-->O2+(X (2)Pi(g))+CO(X (1)Sigma+) reaction where the O turns around the OCO molecule.
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Affiliation(s)
- H Ndome
- Theoretical Chemistry Group, University of Marne-La-Vallée, Champs sur Marne, Marne-la-Vallée, F-77454, France
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Sun L, Schatz GC. Direct Dynamics Classical Trajectory Simulations of the O+ + CH4 Reaction at Hyperthermal Energies. J Phys Chem B 2005; 109:8431-8. [PMID: 16851990 DOI: 10.1021/jp0454568] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A Born-Oppenheimer direct dynamics simulation of the O(+) + CH(4) reaction dynamics at hyperthermal energies has been carried out with the PM3 (ground quartet state) Hamiltonian. Calculations were performed at various collision energies ranging from 0.5 to 10 eV with emphasis on high energy collisions where this reaction is relevant to materials erosion studies in low Earth orbit and geosynchronous Earth orbit. Charge transfer to give CH(4)(+) is the dominant channel arising from O(+) + CH(4) collisions in this energy range, but most of the emphasis in our study is on collisions that lead to reaction. All energetically accessible reaction channels were found, including products containing carbon-oxygen bonds, which is in agreement with the results of recent experiments. After correcting for compensating errors in competing reaction channels, our excitation functions show quantitative agreement with experiment (for which absolute magnitudes of cross sections are available) at high collision energies (several eV). More detailed properties, such as translational and angular distributions, show qualitative agreement. The opacity function reveals a high selectivity for producing OH(+) at high impact parameters, CH(3)(+)/CH(2)(+)/H(2)O(+) at intermediate impact parameters, and H(2)CO(+)/HCO(+)/CO(+) at small impact parameters. Angular distributions for CH(3)(+)/CH(2)(+)/OH(+) are forward scattered at high collision energies which implies the importance of direct reaction mechanisms, while reaction complexes play an important role at lower energies, especially for the H(2)O(+) product. Finally, we find that the nominally spin-forbidden product CH(3)(+) + OH can be produced by a spin-allowed pathway that involves the formation of the triplet excited product CH(3)(+)(ã(3)E). This explains why CH(3)(+) can have a high cross section, even at very low collision energies. The results of this work suggest that the PM3 method may be applied directly to the study of O(+) reactions with small alkane molecules and polymer surfaces.
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Affiliation(s)
- Lipeng Sun
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
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Alcaraz C, Nicolas C, Thissen R, Zabka J, Dutuit O. 15N+ + CD4 and O+ + 13CO2 State-Selected Ion−Molecule Reactions Relevant to the Chemistry of Planetary Ionospheres. J Phys Chem A 2004. [DOI: 10.1021/jp0477755] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christian Alcaraz
- LURE, UMR 130, Bât. 209D, Centre Universitaire Paris-Sud, 91898 Orsay Cedex, Laboratoire de Chimie Physique, UMR 8000, Bât. 350, Centre Universitaire Paris-Sud, 91405 Orsay, France, and J. Heyrovsky Institute of Physical Chemistry, Dolejskova 3, CZ 18223 Praha 8 - Kobylisy, Czech Republic
| | - Christophe Nicolas
- LURE, UMR 130, Bât. 209D, Centre Universitaire Paris-Sud, 91898 Orsay Cedex, Laboratoire de Chimie Physique, UMR 8000, Bât. 350, Centre Universitaire Paris-Sud, 91405 Orsay, France, and J. Heyrovsky Institute of Physical Chemistry, Dolejskova 3, CZ 18223 Praha 8 - Kobylisy, Czech Republic
| | - Roland Thissen
- LURE, UMR 130, Bât. 209D, Centre Universitaire Paris-Sud, 91898 Orsay Cedex, Laboratoire de Chimie Physique, UMR 8000, Bât. 350, Centre Universitaire Paris-Sud, 91405 Orsay, France, and J. Heyrovsky Institute of Physical Chemistry, Dolejskova 3, CZ 18223 Praha 8 - Kobylisy, Czech Republic
| | - Jan Zabka
- LURE, UMR 130, Bât. 209D, Centre Universitaire Paris-Sud, 91898 Orsay Cedex, Laboratoire de Chimie Physique, UMR 8000, Bât. 350, Centre Universitaire Paris-Sud, 91405 Orsay, France, and J. Heyrovsky Institute of Physical Chemistry, Dolejskova 3, CZ 18223 Praha 8 - Kobylisy, Czech Republic
| | - Odile Dutuit
- LURE, UMR 130, Bât. 209D, Centre Universitaire Paris-Sud, 91898 Orsay Cedex, Laboratoire de Chimie Physique, UMR 8000, Bât. 350, Centre Universitaire Paris-Sud, 91405 Orsay, France, and J. Heyrovsky Institute of Physical Chemistry, Dolejskova 3, CZ 18223 Praha 8 - Kobylisy, Czech Republic
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Levandier DJ, Chiu YH, Dressler RA, Sun L, Schatz GC. Hyperthermal Reactions of O+(4S3/2) with CD4 and CH4: Theory and Experiment. J Phys Chem A 2004. [DOI: 10.1021/jp047993y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Solimannejad M, Boutalib A. G2 Molecular Orbital Investigation of OCH+−XH, OCH+−X2, and OCH+−XY(YX) (X = Y = F, Cl, and Br) Proton Bond Complexes. J Phys Chem A 2004. [DOI: 10.1021/jp0496250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Mohammad Solimannejad
- Quantum Chemistry Group, Department of Chemistry, Arak University, 38156-879 Arak, Iran
| | - Abderrahim Boutalib
- Département de Chimie, Université Cadi Ayyad, Faculté des Sciences Semlalia, B.P. 2390 Marrakech, Morocco
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Milligan DB, Wilson PF, Freeman CG, Meot-Ner M, McEwan MJ. Dissociative Proton Transfer Reactions of H3+, N2H+, and H3O+ with Acyclic, Cyclic, and Aromatic Hydrocarbons and Nitrogen Compounds, and Astrochemical Implications. J Phys Chem A 2002. [DOI: 10.1021/jp014659i] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel B. Milligan
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8001, New Zealand
| | - Paul F. Wilson
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8001, New Zealand
| | - Colin G. Freeman
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8001, New Zealand
| | - Michael Meot-Ner
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8001, New Zealand
| | - Murray J. McEwan
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8001, New Zealand
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Spanel P, Smith D. An investigation of the reactions of H3O+ and O2+ with NO, NO2, N2O and HNO2 in support of selected ion flow tube mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2000; 14:646-651. [PMID: 10786901 DOI: 10.1002/(sici)1097-0231(20000430)14:8<646::aid-rcm926>3.0.co;2-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A selected ion flow tube (SIFT) experimental investigation has been carried out of the reactions of H3O+, NO+ and O2+ with NO, NO2, N2O and HNO2, in order to obtain the essential kinetic data for the analyses of these compounds in air using selected ion flow tube mass spectrometry (SIFT-MS). These investigations show that NO+ ions do not react at a significant rate with any of these NOx compounds and that H3O+ ions react only with HNO2 (product ions H2NO2+ (75%) and NO+ (25%)). O2+ ions react with NO (product ion NO+), NO2 (product ion NO2+) and HNO2 (product ions NO+ (75%), NO2+ (25%)), but not with N2O. We conclude that both NO and NO2 can be accurately quantified in air using only O2+ precursor ions and SIFT-MS when HNO2 is not present. However, when HNO2 is present it invariably co-exists with both NO and NO2 and then both H3O+ and O2+ precursor ions are needed to determine the partial pressures of NO, NO2 and HNO2 in the air mixture. We also conclude that currently N2O cannot be analysed in air using SIFT-MS.
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Affiliation(s)
- P Spanel
- J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague
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18
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Spanel P, Smith D. SIFT studies of the reactions of H3O+, NO+ and O2+ with a series of alcohols. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0168-1176(97)00085-2] [Citation(s) in RCA: 159] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Beghin A, Stoecklin T. The effect of middle range forces on the rate constant of a fast chemical reaction within adiabatic capture theory. Chem Phys 1997. [DOI: 10.1016/s0301-0104(96)00366-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Španěl P, Smith D, Henchman M. The reactions of some interstellar ions with benzene, cyclopropane and cyclohexane. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/0168-1176(94)04107-i] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Buck U, Winter M. Electron bombardment induced fragmentation of size selected neutral (D2O) n clusters. ACTA ACUST UNITED AC 1994. [DOI: 10.1007/bf01445010] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Measurement of the reaction rate coefficients of reactions of H2+ with Ne, Ar, Kr, Xe, H2, D2, N2 and CH4 at thermal energy. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/0168-1176(94)90004-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Jullien S, Lemaire J, Fenistein S, Heninger M, Mauclaire G, Marx R. Radiative lifetimes of Xe+ and Kr+ in their 2P12 spin—orbit states. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)89335-f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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