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Sun G, Zhou W, Zheng X, Qin Y, Song Y, Yuan Y, Zhang J. State-to-state predissociation dynamics of hydroxyl radical via the A2Σ+ state. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1837974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ge Sun
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
| | - Weidong Zhou
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
| | - Xianfeng Zheng
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
| | - Yuan Qin
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
| | - Yu Song
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
| | - Yan Yuan
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
| | - Jingsong Zhang
- Department of Chemistry, University of California at Riverside, Riverside, CA, USA
- Air Pollution Research Center, University of California, Riverside, CA, USA
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Sun G, Zheng XF, Qin Y, Song Y, Zhang J, Amero JM, Vázquez GJ. Two-photon dissociation dynamics of hydroxyl radical. CHINESE J CHEM PHYS 2020. [DOI: 10.1063/1674-0068/cjcp2003026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Ge Sun
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, U.S.A
| | - Xian-feng Zheng
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, U.S.A
| | - Yuan Qin
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, U.S.A
| | - Yu Song
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, U.S.A
| | - Jingsong Zhang
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, U.S.A
| | - Jose Martin Amero
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62251, México
| | - Gabriel J. Vázquez
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62251, México
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LI YUANJUN, ZHANG PEIYU. A THEORETICAL ANALYSIS OF THE DISSOCIATION OF OH RADICAL: FINE-STRUCTURE DISTRIBUTIONS OF THE O(3PJ) PRODUCT. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2012. [DOI: 10.1142/s0219633611006803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A theoretical treatment is presented for the nonadiabatic photodissociation of hydroxyl radical. Five electronic states, X 2Π, A 2Σ+, 14Σ-, 12Σ- and 14Π, are included in this simulation. Based on the accurate ab initio calculations of the potential energy curves, transition dipole moments and nonadiabatic couplings between the relevant states, the dissociation dynamics are investigated using the time-dependent quantum wave packet approach. The direct dissociation, following the excitation from the specific vibrational levels of the ground state X 2Π to the repulsive state 12Σ- is examined, where the total and partial cross sections and the branching fractions of spin–orbit fine-structures of O (3 P J) are calculated over a wide range of the incident photon frequencies. For the predissociation via the bound excited state A 2Σ+, the influence of the nonadiabatic interactions in different internuclear regions and the role of the repulsive states in the dissociation starting at different vibrational levels are also analyzed through the spin–orbit branching fractions of products.
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Affiliation(s)
- YUANJUN LI
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - PEI-YU ZHANG
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, P. R. China
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