51
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Murray C, Orr-Ewing * AJ. The dynamics of chlorine-atom reactions with polyatomic organic molecules. INT REV PHYS CHEM 2004. [DOI: 10.1080/01442350412331329166] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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52
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Affiliation(s)
- Dave Townsend
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794, Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Suk Kyoung Lee
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794, Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Arthur G. Suits
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794, Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
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53
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Camden JP, Bechtel HA, Ankeny Brown DJ, Pomerantz AE, Zare RN, Le Roy RJ. Probing Excited Electronic States Using Vibrationally Mediated Photolysis: Application to Hydrogen Iodide. J Phys Chem A 2004. [DOI: 10.1021/jp049051z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jon P. Camden
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Hans A. Bechtel
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | | | - Andrew E. Pomerantz
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Richard N. Zare
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Robert J. Le Roy
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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54
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Slice imaging of H-atom photofragments: effects of the REMPI detection process on the observed velocity distribution. Chem Phys 2004. [DOI: 10.1016/j.chemphys.2003.11.038] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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55
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Pomerantz AE, Ausfelder F, Zare RN, Althorpe SC, Aoiz FJ, Banares L, Castillo JF. Disagreement between theory and experiment in the simplest chemical reaction: Collision energy dependent rotational distributions for H+D2→HD(ν′=3,j′)+D. J Chem Phys 2004; 120:3244-54. [PMID: 15268478 DOI: 10.1063/1.1641008] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present experimental rotational distributions for the reaction H + D2 --> HD(nu' = 3,j') + D at eight different collision energies between 1.49 and 1.85 eV. We combine a previous measurement of the state-resolved excitation function for this reaction [Ayers et al., J. Chem. Phys. 119, 4662 (2003)] with the current data to produce a map of the relative reactive cross section as a function of both collision energy and rotational quantum number (an E-j' plot). To compare with the experimental data, we also present E-j' plots resulting from both time-dependent and time-independent quantum mechanical calculations carried out on the BKMP2 surface. The two calculations agree well with each other, but they produce rotational distributions significantly colder than the experiment, with the difference being more pronounced at higher collision energies. Disagreement between theory and experiment might be regarded as surprising considering the simplicity of this system; potential causes of this discrepancy are discussed.
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Affiliation(s)
- Andrew E Pomerantz
- Department of Chemistry, Stanford University, Stanford, California 94305-5080 USA
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56
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Ausfelder F, Pomerantz AE, Zare RN, Althorpe SC, Aoiz FJ, Banares L, Castillo JF. Collision energy dependence of the HD(ν′=2) product rotational distribution of the H+D2 reaction in the range 1.30–1.89 eV. J Chem Phys 2004; 120:3255-64. [PMID: 15268479 DOI: 10.1063/1.1641009] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
An experimental and theoretical investigation of the collision energy dependence of the HD(nu' = 2,j') rotational product state distribution for the H + D2 reaction in the collision energy range of Ecol = 1.30-1.89 eV has been carried out. Theoretical results based on time-dependent and time-independent quantum mechanical methods agree nearly perfectly with each other, and the agreement with the experiment is good at low collision energies and very good at high collision energies. This behavior is in marked contrast to a previous report on the HD(nu' = 3,j') product state rotational distribution [Pomerantz et al., J. Chem. Phys. 120, 3244 (2004)] where a systematic difference between experiment and theory was observed, especially at the highest collision energies. The reason for this different behavior is not yet understood. In addition, this study employs Doppler-free spectroscopy to resolve an ambiguity in the E, F-X resonantly enhanced multiphoton ionization transition originating from the HD(nu' = 2,j' = 1) state, which is found to be caused by an accidental blending with the transition coming from the HD(nu' = 1,j' = 14) state.
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Affiliation(s)
- Florian Ausfelder
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA
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57
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Ayers JD, Pomerantz AE, Fernández-Alonso F, Ausfelder F, Bean BD, Zare RN. Measurement of the cross section for H+D2→HD(v′=3,j′=0)+D as a function of angle and energy. J Chem Phys 2003. [DOI: 10.1063/1.1595092] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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58
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Pomerantz AE, Zare RN. Doppler-free multi-photon ionization: a proposal for enhancing ion images. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00158-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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59
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Brouard M, Burak I, Minayev D, O’Keeffe P, Vallance C, Aoiz FJ, Bañares L, Castillo JF, Zhang DH, Collins MA. The dynamics of the H+D2O→OD+HD reaction at 2.5 eV: Experiment and theory. J Chem Phys 2003. [DOI: 10.1063/1.1528896] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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60
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Hendrik Nahler N, Baumfalk R, Buck U, Vach H, Slavíček P, Jungwirth P. Photodissociation of HBr in and on Arnclusters: the role of the position of the molecule. Phys Chem Chem Phys 2003. [DOI: 10.1039/b304511k] [Citation(s) in RCA: 15] [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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61
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Buck U. Photodissociation of Hydrogen Halide Molecules in Different Cluster Environments. J Phys Chem A 2002. [DOI: 10.1021/jp0208079] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Udo Buck
- Max-Planck-Institut für Strömungsforschung, Bunsenstrasse 10, D-37073 Göttingen, Germany
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62
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63
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Bean BD, Ayers JD, Fernández-Alonso F, Zare RN. State-resolved differential and integral cross sections for the reaction H+D2→HD(v′=3,j′=0–7)+D at 1.64 eV collision energy. J Chem Phys 2002. [DOI: 10.1063/1.1462576] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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64
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Fernández-Alonso F, Bean BD, Zare RN, Aoiz FJ, Bañares L, Castillo JF. Forward scattering in the H+D2→HD+D reaction: Comparison between experiment and theoretical predictions. J Chem Phys 2001. [DOI: 10.1063/1.1390505] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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65
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Bean BD, Fernández-Alonso F, Zare RN. Distribution of Rovibrational Product States for the “Prompt” Reaction H + D2(v = 0, j = 0−4) → HD(v‘ = 1,2, j‘) + D near 1.6 eV Collision Energy. J Phys Chem A 2001. [DOI: 10.1021/jp0027288] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian D. Bean
- Department of Chemistry, Stanford University, Stanford, California 94305
| | | | - Richard N. Zare
- Department of Chemistry, Stanford University, Stanford, California 94305
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66
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Alekseyev AB, Liebermann HP, Kokh DB, Buenker RJ. On the ultraviolet photofragmentation of hydrogen iodide. J Chem Phys 2000. [DOI: 10.1063/1.1308552] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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67
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Brouard M, Burak I, Hughes DW, Kalogerakis KS, Simons JP, Stavros V. Product state resolved stereodynamics: Rotational polarization of OH(2Π;υ′,N′,Ω,f ) scattered from the reaction, H+CO2→OH+CO. J Chem Phys 2000. [DOI: 10.1063/1.1286972] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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68
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Brown A, Balint-Kurti GG. Spin–orbit branching in the photodissociation of HF and DF. II. A time-dependent wave packet study of vibrationally mediated photodissociation. J Chem Phys 2000. [DOI: 10.1063/1.481991] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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69
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Brown A, Balint-Kurti GG. Spin–orbit branching in the photodissociation of HF and DF. I. A time-dependent wave packet study for excitation from v=0. J Chem Phys 2000. [DOI: 10.1063/1.482075] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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70
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Hurley SM, Zhong Q, Castleman AW. Dynamics of theEstate of HBr and DBr: Evidence for the role of tunneling. J Chem Phys 2000. [DOI: 10.1063/1.481019] [Citation(s) in RCA: 6] [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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71
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Brouard M, Hughes DW, Kalogerakis KS, Simons JP. The product rovibrational and spin–orbit state dependent dynamics of the complex reaction H+CO2→OH(2Π;ν,N,Ω, f)+CO: Memories of a lifetime. J Chem Phys 2000. [DOI: 10.1063/1.481081] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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72
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Regan PM, Ascenzi D, Clementi C, Ashfold MN, Orr-Ewing AJ. The UV photodissociation of HI revisited: REMPI measurements of I(2P) atom spin–orbit branching fractions. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)01223-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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73
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Fernández-Alonso F, Bean BD, Zare RN. Differential cross sections for H+D2→HD (v′=2, J′=0,3,5)+D at 1.55 eV. J Chem Phys 1999. [DOI: 10.1063/1.479527] [Citation(s) in RCA: 28] [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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74
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Baumfalk R, Buck U, Frischkorn C, Nahler NH, Hüwel L. Photodissociation of HBr molecules and clusters: Anisotropy parameters, branching ratios, and kinetic energy distributions. J Chem Phys 1999. [DOI: 10.1063/1.479535] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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75
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Fernández-Alonso F, Bean BD, Zare RN. Differential cross sections for H+D2→HD(v′=1, J′=1,5,8)+D at 1.7 eV. J Chem Phys 1999. [DOI: 10.1063/1.479191] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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76
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Fernández-Alonso F, Bean BD, Zare RN. Measurement of the HD(v′=2,J′=3) product differential cross section for the H+D2 exchange reaction at 1.55±0.05 eV using the photoloc technique. J Chem Phys 1999. [DOI: 10.1063/1.479294] [Citation(s) in RCA: 37] [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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