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Holland D, Shaw D. The influence of autoionizing Rydberg states on the H2+ X 2Σg+ v+=0,1,2 state rotationally resolved photoelectron angular distributions and branching ratios. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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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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Rijs AM, Backus EHG, de Lange CA. Photoionization dynamics in CS fragmented from CS 2 studied by high-resolution photoelectron spectroscopy. CAN J CHEM 2004. [DOI: 10.1139/v04-015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The photoionization dynamics of CS have been studied using high-resolution laser photoelectron spectroscopy. The photodissociation of CS2 at ~308 nm results in highly rotationally excited CS in its X1Σ+ singlet ground state, as well as in rotationally cold CS in the excited a3Π triplet state. The ground-state CS fragments are formed together with sulfur in its 3P, 1D, and 1S electronic states; triplet CS is produced in coincidence with ground-state sulfur (3P). In both channels the photoelectron spectra are dominated by Δv = 0 propensity, but transitions involving Δv = 1 and 2 are also observed. Key words: photoelectron spectroscopy, photoionization, photodissociation, excited states, reactive intermediates.
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Glab WL, Pratt ST. Ion rotational distributions following vibrational autoionization of the Rydberg states of water. J Chem Phys 2004; 120:8555-66. [PMID: 15267782 DOI: 10.1063/1.1701718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Double-resonance laser excitation and high-resolution energy dispersive photoelectron spectroscopy were used to determine the ionic rotational-state distributions following vibrational autoionization of Rydberg states of water having principal quantum number n=8-10 and converging to the X (2)B(1) (1,0,0) state of H(2)O(+). Where possible, these states were identified by comparison with results of a calculation based on multichannel quantum defect theory. Symmetry and angular momentum constraints link the observed ionic rotational states to particular values of the orbital angular momentum of the Rydberg electron, l, and to the partial-wave composition of the ejected electron. In particular, this connection allows an unambiguous determination of the even or odd character of the partial waves and provides a test of the predicted character of the autoionizing resonances. The effects of l mixing induced by the nonspherical nature of the ionic field are plainly evident in the ion distributions. The present results also allow a tentative assignment of some resonances to the previously unidentified np Rydberg states.
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Affiliation(s)
- W L Glab
- Department of Physics, Texas Tech University, Lubbock, Texas 79409, USA
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Bell P, Aguirre F, Grant ER, Pratt ST. Mode dependent vibrational autoionization of Rydberg states of NO2. II. Comparing the symmetric stretching and bending vibrations. J Chem Phys 2004; 120:2667-76. [PMID: 15268410 DOI: 10.1063/1.1638379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Triple-resonance excitation and high-resolution photoelectron spectroscopy are combined to characterize the mode selectivity of vibrational autoionization of the high Rydberg states of NO2. Photoelectron spectra and vibrational branching fractions are reported for autoionizing Rydberg states converging to the NO2+ X 1Sigmag +(110) state, that is, with one quantum in the symmetric stretch, nu1, and one quantum in the bending vibration, nu2. These results indicate that autoionization proceeds most efficiently through the loss of one quantum from the symmetric stretch rather than from the bending vibration. The implications of this result are discussed in terms of the autoionization mechanism.
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Affiliation(s)
- Patrice Bell
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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Bell P, Aguirre F, Grant ER, Pratt ST. Mode-dependent vibrational autoionization of NO2. J Chem Phys 2003. [DOI: 10.1063/1.1618218] [Citation(s) in RCA: 10] [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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Rijs AM, Backus EHG, de Lange CA, Janssen MHM, Wang K, McKoy V. Rotationally resolved photoelectron spectroscopy of hot N2 formed in the photofragmentation of N2O. J Chem Phys 2001. [DOI: 10.1063/1.1370078] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Bacon JA, Pratt ST. Photoelectron spectroscopy of ammonia: Mode-dependent vibrational autoionization. J Chem Phys 2000. [DOI: 10.1063/1.1312286] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Bacon JA, Pratt ST. Photoelectron spectroscopy of autoionizing Rydberg states of ammonia. J Chem Phys 2000. [DOI: 10.1063/1.480962] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Glab WL, Child MS, Pratt ST. Rotationally resolved photoelectron spectroscopy of autoionizing states of water. J Chem Phys 1998. [DOI: 10.1063/1.476897] [Citation(s) in RCA: 12] [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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Pratt ST. Vibrational autoionization and predissociation in high Rydberg states of nitric oxide. J Chem Phys 1998. [DOI: 10.1063/1.476130] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Park H, Zare RN. Rotationally resolved photoelectron spectra from vibrational autoionization of NO Rydberg levels. J Chem Phys 1997. [DOI: 10.1063/1.473148] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Park H, Leahy DJ, Zare RN. Extensive electron-nuclear angular momentum exchange in vibrational autoionization of np and nf Rydberg states of NO. PHYSICAL REVIEW LETTERS 1996; 76:1591-1594. [PMID: 10060468 DOI: 10.1103/physrevlett.76.1591] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Mackenzie S, Merkt F, Halse E, Softley T. Rotational state selectivity in N2+X2∑g+(ν+= 0) by delayed pulsed field ionization spectroscopy via the a″1∑g+(ν′ = 0) state. Mol Phys 1995. [DOI: 10.1080/00268979500102731] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mackenzie SR, Softley TP. New experimental method for studying rotationally state‐selected ion‐molecule reactions. J Chem Phys 1994. [DOI: 10.1063/1.467875] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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McCormack EF, Pratt ST, Dehmer PM, Dehmer JL. Dissociation dynamics of high‐vRydberg states of molecular hydrogen. J Chem Phys 1993. [DOI: 10.1063/1.464495] [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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Pratt ST, Dehmer PM, Dehmer JL. Constant‐ionic‐state spectroscopy of high‐vRydberg states of molecular hydrogen. J Chem Phys 1992. [DOI: 10.1063/1.463045] [Citation(s) in RCA: 8] [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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Bryant GP, Jiang Y, Grant ER. Triple‐resonance spectroscopy of the higher excited states of NO2. IV. Trends in the mode dependence of vibrational autoionization via asymmetric stretch versus symmetric stretch and bend. J Chem Phys 1992. [DOI: 10.1063/1.462773] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wang K, Stephens JA, McKoy V. Effects of Cooper minima in resonance enhanced multiphoton ionization‐photoelectron spectroscopy of NO via the D 2Σ+ and C 2Π Rydberg states. J Chem Phys 1991. [DOI: 10.1063/1.461542] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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de Beer E, Born M, de Lange C, Westwood N. A rotationally resolved REMPI-PES study of the NH radical. Chem Phys Lett 1991. [DOI: 10.1016/0009-2614(91)80189-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pratt ST, Dehmer PM, Dehmer JL. Photoelectron spectroscopy from the à 1Au state of acetylene: The bending vibrations of C2H+2 X 2Πu. J Chem Phys 1991. [DOI: 10.1063/1.461570] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wang K, McKoy V. Rotational branching ratios and photoelectron angular distributions in resonance enhanced multiphoton ionization of diatomic molecules. J Chem Phys 1991. [DOI: 10.1063/1.461793] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yang B, Chiu Y, Anderson SL. The effects of reactant vibrational, fine structure, and collision energy on the reactions of OCS+with C2H2: Complementary studies of reactions in the [C2H2+OCS]+system. J Chem Phys 1991. [DOI: 10.1063/1.460275] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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