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Multiphoton Ionization State Selection: Vibrational-Mode and Rotational-State Control. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470141397.ch2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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Bearpark MJ, Handy NC, Palmieri P, Tarroni R. Spin-orbit interactions from self consistent field wavefunctions. Mol Phys 2006. [DOI: 10.1080/00268979300102411] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Michael J. Bearpark
- a University Chemical Laboratory , Lensfield Road, Cambridge , CB2 1EW , England
- c Department of Chemistry , King's College, Strand , London , WC2R 2LS , UK
| | - Nicholas C. Handy
- a University Chemical Laboratory , Lensfield Road, Cambridge , CB2 1EW , England
| | - Paolo Palmieri
- b Dipartimento di Chimica Fisica ed Inorganica , Università di Bologna , Viale Risorgimento 4, 40136 , Bologna , Italy
| | - Riccardo Tarroni
- b Dipartimento di Chimica Fisica ed Inorganica , Università di Bologna , Viale Risorgimento 4, 40136 , Bologna , Italy
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Petrignani A, van der Zande WJ, Cosby PC, Hellberg F, Thomas RD, Larsson M. Vibrationally resolved rate coefficients and branching fractions in the dissociative recombination of O2+. J Chem Phys 2005; 122:14302. [PMID: 15638654 DOI: 10.1063/1.1825991] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have studied the dissociative recombination of the first three vibrational levels of O(2) (+) in its electronic ground X (2)Pi(g) state. Absolute rate coefficients, cross sections, quantum yields and branching fractions have been determined in a merged-beam experiment in the heavy-ion storage ring, CRYRING, employing fragment imaging for the reaction dynamics. We present the absolute total rate coefficients as function of collision energies up to 0.4 eV for five different vibrational populations of the ion beam, as well as the partial (vibrationally resolved) rate coefficients and the branching fractions near 0 eV collision energy for the vibrational levels v=0, 1, and 2. The vibrational populations used were produced in a modified electron impact ion source, which has been calibrated using Cs-O(2)(+) dissociative charge transfer reactions. The measurements indicate that at low collision energies, the total rate coefficient is weakly dependent on the vibrational excitation. The calculated thermal rate coefficient at 300 K decreases upon vibrational excitation. The partial rate coefficients as well as the partial branching fractions are found to be strongly dependent on the vibrational level. The partial rate coefficient is the fastest for v=0 and goes down by a factor of two or more for v=1 and 2. The O((1)S) quantum yield, linked to the green airglow, increases strongly upon increasing vibrational level. The effects of the dissociative recombination reactions and super elastic collisions on the vibrational populations are discussed.
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Affiliation(s)
- Annemieke Petrignani
- FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands.
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Hellberg F, Rosén S, Thomas R, Neau A, Larsson M, Petrignani A, van der Zande WJ. Dissociative recombination of NO+: Dynamics of the X 1Σ+ and a 3Σ+ electronic states. J Chem Phys 2003. [DOI: 10.1063/1.1557917] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wester R, Bhushan KG, Altstein N, Zajfman D, Heber O, Rappaport ML. Radiative lifetime measurement of the a 3Σ+ metastable state of NO+ using a new type of electrostatic ion trap. J Chem Phys 1999. [DOI: 10.1063/1.479168] [Citation(s) in RCA: 16] [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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Kella D, Vejby-Christensen L, Johnson PJ, Pedersen HB, Andersen LH. The Source of Green Light Emission Determined from a Heavy-Ion Storage Ring Experiment. Science 1997. [DOI: 10.1126/science.276.5318.1530] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- D. Kella
- Institute of Physics and Astronomy, University of Aarhus, DK 8000, Aarhus C, Denmark
| | - L. Vejby-Christensen
- Institute of Physics and Astronomy, University of Aarhus, DK 8000, Aarhus C, Denmark
| | - P. J. Johnson
- Institute of Physics and Astronomy, University of Aarhus, DK 8000, Aarhus C, Denmark
| | - H. B. Pedersen
- Institute of Physics and Astronomy, University of Aarhus, DK 8000, Aarhus C, Denmark
| | - L. H. Andersen
- Institute of Physics and Astronomy, University of Aarhus, DK 8000, Aarhus C, Denmark
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Shincor SK, Han SJ, Kim B. Fourier transform ion cyclotron resonance detection of multiphoton ionization spectroscopy. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 1996; 7:1018-1025. [PMID: 24202882 DOI: 10.1016/1044-0305(96)00050-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/1995] [Accepted: 04/22/1996] [Indexed: 06/02/2023]
Abstract
Fourier transform ion cyclotron resonance (FT-ICR) detection was tested for resonanceenhanced multiphoton ionization (REMPI) spectroscopy. The (2+1) REMPI spectra of acetaldehyde were obtained in the wavelength range 364-354 nm via a two-photon resonant 3s ← n Rydberg transition. The space-charge effects on the REMPI spectra were examined in the vicinity of the 0 0 (0) transition. The trapping efficiency measurement shows that all the ions produced from REMPI dissociation processes are arrested in the ion cyclotron resonance cell even in the presence of space-charge interactions. Axial kinetic energy release distributions of ions were extracted from the trapping efficiency data obtained under a new space-charge-free condition. FT-ICR peak heights were measured as a function of pressure at different laser powers, magnetic field strengths, and ion excitation methods to test for the detection linearity. The FT-ICR detection responds linearly to the number of ions in a low pressure limit. The product branching ratio was measured by using various ion excitation methods and was compared with the previous quadrupole mass spectrometric study. FT-ICR detection yields the mass-selected REMPI spectra and the product branching ratio in the absence of kinetic shifts.
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Affiliation(s)
- S K Shincor
- Department of Chemistry, University of California, Santa Barbara, California, USA
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Calamai AG, Yoshino K. Radiative lifetimes of the a 3Σ+ metastable state of NO+. J Chem Phys 1994. [DOI: 10.1063/1.467979] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Amitay Z, Zajfman D, Forck P. Rotational and vibrational lifetime of isotopically asymmetrized homonuclear diatomic molecular ions. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 50:2304-2308. [PMID: 9911145 DOI: 10.1103/physreva.50.2304] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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10
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Jullien S, Lemaire J, Fenistein S, Heninger M, Mauclaire G, Marx R, Chambaud G, Rosmus P. Radiative lifetimes of HBr+and DBr+(2Π1/2,v=0, 1). J Chem Phys 1994. [DOI: 10.1063/1.468179] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hutter SJ, Hess BA, Marian CM, Samzow R. A theoretical description of the b 3Π→a 3Σ+ transition of NO+. J Chem Phys 1994. [DOI: 10.1063/1.467240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Marx R, Fenistein S, Mauclaire G, Lemaire J, Heninger M. The radiative lifetimes of O+2(a4Πu, v) and NO+(a3∑+, v) revisited. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/0168-1176(93)03928-f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Palmieri P, Tarroni R, Chambaud G, Rosmus P. On the radiative lifetimes of the a 3Σ+ state of NO+. J Chem Phys 1993. [DOI: 10.1063/1.465769] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Manaa MR, Yarkony DR. A theoretical treatment of thea 3Σ1+ →X1Σ0++ spin‐forbidden dipole‐allowed radiative transition in NO+. J Chem Phys 1991. [DOI: 10.1063/1.461526] [Citation(s) in RCA: 20] [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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Marx R, Yang YM, Mauclaire G, Heninger M, Fenistein S. Radiative lifetimes and reactivity of metastable NO+(a 3Σ+,v) and O+2(a 4Πu,v). J Chem Phys 1991. [DOI: 10.1063/1.460982] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Ma G, Suto M, Lee LC. Reaction rate constants of NO+(a)+NO and Ar++NO measured by an optical detection method. J Chem Phys 1991. [DOI: 10.1063/1.460124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Partridge H, Langhoff SR, Bauschlicher CW. Theoretical study of the spectroscopy of NO+. J Chem Phys 1990. [DOI: 10.1063/1.459716] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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A new instrument for measuring the radiative lifetimes and for studying the state-selected bimolecular reaction chemistry of small ionic species. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0168-1176(90)85085-g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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