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Martins FBV, Zhelyazkova V, Merkt F. Cold reactions of He + with OCS and CO 2: competitive kinetics and the effects of the molecular multipole moments. Phys Chem Chem Phys 2024; 26:24799-24808. [PMID: 39297210 PMCID: PMC11413858 DOI: 10.1039/d4cp02871f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2024] [Accepted: 08/18/2024] [Indexed: 09/22/2024]
Abstract
The reactions of He+ with OCS and CO2 have been studied at collision energies between ∼kB ⋅ 200 mK and ∼kB ⋅ 30 K by merging a beam of Rydberg He atoms with rotationally cold (∼3.5 K) seeded supersonic expansions containing either OCS or 13CO2 or a mixture of OCS (mole fraction 23.2%) and 13CO2 (76.8%). The observed product ions of the He+ + 13CO2 and He+ + OCS reactions are 13CO+, and CS+ and CO+, respectively. The He+ + OCS capture rate coefficient increases by ∼75% with decreasing collision energy over the investigated range, whereas that of He+ + 13CO2 decreases by ∼40%. The analysis of the experimental results using an adiabatic-channel capture model indicates that these opposite collision-energy dependences of the rate coefficients arise from the interaction between the charge of the ion and the electric multipole moments of OCS and 13CO2. From the relative product-ion yields observed when using the mixture of OCS and 13CO2, the He+ + OCS collisions are inferred to be ∼20% more reactive than those between He+ and 13CO2. The comparison of the calculated thermal rate coefficients with earlier experiments suggests that about half of the He+ + 13CO2 collisions are reactive.
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Affiliation(s)
- Fernanda B V Martins
- ETH Zürich, Institute of Molecular Physical Science, CH-8093 Zürich, Switzerland.
| | | | - Frédéric Merkt
- ETH Zürich, Institute of Molecular Physical Science, CH-8093 Zürich, Switzerland.
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Ploenes L, Straňák P, Gao H, Küpper J, Willitsch S. A novel crossed-molecular-beam experiment for investigating reactions of state- and conformationally selected strong-field-seeking molecules. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1965234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- L. Ploenes
- Department of Chemistry, University of Basel, Basel, Switzerland
| | - P. Straňák
- Department of Chemistry, University of Basel, Basel, Switzerland
| | - H. Gao
- Department of Chemistry, University of Basel, Basel, Switzerland
| | - J. Küpper
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
- Department of Physics, Universität Hamburg, Hamburg, Germany
- Department of Chemistry, Universität Hamburg, Hamburg, Germany
| | - S. Willitsch
- Department of Chemistry, University of Basel, Basel, Switzerland
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Nakashima Y, Harada K, Tanaka K, Tanaka T. High-resolution Fourier transform emission spectroscopy of the A∼2Πi−X∼2Πi band of the OCS +ion. J Chem Phys 2017; 146:144302. [DOI: 10.1063/1.4979300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mitsuke K, Mizutani M. UV and Visible Emission Spectra from the Photodissociation of Carbonyl Sulfide Using Synchrotron Radiation at 15–30 eV. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.1193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tokue I, Kudo T, Kobayashi M, Yamasaki K. Photoemission Cross Sections for Ions Produced by Collisions of He(23S) Atoms with Linear Triatomic Molecules and Fluorobenzenes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1997. [DOI: 10.1246/bcsj.70.71] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Blöcker J, Reinsch EA, Rosmus P, Werner HJ, Knowles P. Theoretical radiative transition probabilities of the CS+ ion. Chem Phys 1990. [DOI: 10.1016/0301-0104(90)85025-r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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The rotational distribution of OCS+(Ã 2ΠΩ: 00) arising from the thermal energy charge transfer reaction of N2+ with OCS. Chem Phys Lett 1987. [DOI: 10.1016/0009-2614(87)80106-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yamaguchi S, Tsuji M, Nishimura Y. Nascent vibrational and rotational distributions of CH+ (A 1Π) produced from the charge transfer reaction of He+ with C2H2 at thermal energy. J Chem Phys 1987. [DOI: 10.1063/1.453225] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yamaguchi S, Tsuji M, Nishimura Y. Observation of the BBr+ emission spectrum: vibrational analysis of the A2Π12 − X2Σ+ system. Chem Phys Lett 1987. [DOI: 10.1016/0009-2614(87)80337-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yamaguchi S, Tsuji M, Obase H, Sekiya H, Nishimura Y. The SiH+(A 1Π–X 1Σ+) emission produced from the thermal energy reaction of He+ with SiH4 under single collision conditions. J Chem Phys 1987. [DOI: 10.1063/1.452666] [Citation(s) in RCA: 17] [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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The HCl+(A2Σ+-X2II) and HBr+(A2Σ+-X2II) emissions produced by the He(23S), Ne(3P0,2)-HCl, HBr penning ionization in low-pressure flowing afterglows. Chem Phys 1986. [DOI: 10.1016/0301-0104(86)85141-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sekiya H, Hirayama T, Endoh M, Tsuji M, Nishimura Y. Laser-induced fluorescence detection of N+2(X 2Σ+g) resulting from the He(23S) + N2 and He+, He+2 + N2 reactions in a flowing afterglow. Chem Phys 1986. [DOI: 10.1016/0301-0104(86)85094-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chemiluminescent reaction at thermal energy: The CS+ (A2Π, −X2∑+) emission produced from the C+(2P) + OCS reaction. Chem Phys Lett 1985. [DOI: 10.1016/0009-2614(85)85205-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ochsner M, Tsuji M, Maier JP. Laser excitation spectrum of OCS+, Ā 2II3/2 &_;harr X̄ 2II3/2, in the gas phase. Chem Phys Lett 1985. [DOI: 10.1016/0009-2614(85)85151-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sekiya H, Tsuji M, Nishimura Y. Vibrational Distributions of CO+(A) Produced from the Charge-transfer Reactions of Ne+and He+with OCS at Thermal Energy. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1984. [DOI: 10.1246/bcsj.57.3329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tsuji M, Endoh M, Susuki T, Mizukami K, Nishimura Y. Optical spectroscopic study of thermal‐energy charge transfer between He+ and CO2. J Chem Phys 1984. [DOI: 10.1063/1.448085] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Endoh M, Tsuji M, Nishimura Y. CS2+(A-X) emission produced from the charge-transfer reaction of Ar2+ with CS2 in the Ar afterglow. Chem Phys Lett 1984. [DOI: 10.1016/0009-2614(84)85396-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sekiya H, Tsuji M, Nishimura Y. Emission spectra produced from the reactions of Ne+ and Ar+ ions with OCS at thermal energy. Chem Phys Lett 1983. [DOI: 10.1016/0009-2614(83)87415-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Murakami I, Tsuji M, Nishimura Y. Vibrational analysis of the SO+ (A2Π−χ2Πr) emission system by an isotopic study. Chem Phys Lett 1982. [DOI: 10.1016/0009-2614(82)80090-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Tsuji M, Shimada S, Nishimura Y. Rotational analysis of the a3Π0+,1-X1Σ+ emission systems of GeH+. Chem Phys Lett 1982. [DOI: 10.1016/0009-2614(82)83346-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Golde MF, Ho Y, Ogura H. Chemi‐ionization reactions of metastable Ar(3P0,2) atoms. J Chem Phys 1982. [DOI: 10.1063/1.443455] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tsuji M, Murakami I, Nishimura Y. A new emission produced from sulfur monochloride in a helium afterglow: S+2(A2Πu-X2Πg,r). Chem Phys Lett 1980. [DOI: 10.1016/0009-2614(80)80572-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tsuji M, Obase H, Nishimura Y. CS+ (B 2Σ+–X 2Σ+) emission produced from Penning ionization of the CS (X1 Σ+) radical. J Chem Phys 1980. [DOI: 10.1063/1.440493] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tsuji M, Yamagiwa C, Endoh M, Nishimura Y. SO+(A2Π-X2Πr) emission produced from a dissociative charge-transfer reaction of He+ with SO2 at thermal energy. Chem Phys Lett 1980. [DOI: 10.1016/0009-2614(80)80683-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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CS+(B2Σ+−A2Πi) emission produced from dissociative charge-transfer reactions of He+ with CS2 and OCS at thermal energy. Chem Phys 1980. [DOI: 10.1016/0301-0104(80)87038-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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