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Park Y, Park S, Shin J, Lim M. Photodissociation dynamics of chlorobenzene and
4‐fluoroiodobenzene
in
CCl
4
probed using time‐resolved infrared spectroscopy. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yejin Park
- Department of Chemistry and Chemical Institute for Functional Materials Pusan National University Busan Korea
| | - Seongchul Park
- Department of Chemistry and Chemical Institute for Functional Materials Pusan National University Busan Korea
| | - Juhyang Shin
- Department of Chemistry and Chemical Institute for Functional Materials Pusan National University Busan Korea
| | - Manho Lim
- Department of Chemistry and Chemical Institute for Functional Materials Pusan National University Busan Korea
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2
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Minamida M, Tanaka K, Tonokura K. Kinetic study of the oxidation reaction of 4‐methylphenyl radical. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maya Minamida
- Department of Environment Systems, Graduate School of Frontier SciencesThe University of Tokyo Chiba Japan
| | - Kotaro Tanaka
- Department of Mechanical system Engineering, Faculty of EngineeringIbaraki University Hitachi‐shi Japan
| | - Kenichi Tonokura
- Department of Environment Systems, Graduate School of Frontier SciencesThe University of Tokyo Chiba Japan
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3
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Stankus B, Zotev N, Rogers DM, Gao Y, Odate A, Kirrander A, Weber PM. Ultrafast photodissociation dynamics of 1,4-diiodobenzene. J Chem Phys 2018; 148:194306. [DOI: 10.1063/1.5031787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Brian Stankus
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Nikola Zotev
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - David M. Rogers
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Yan Gao
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Asami Odate
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Adam Kirrander
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Peter M. Weber
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
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4
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Liu B, Zhao H, Lin X, Li X, Gao M, Wang L, Wang W. Vibronic relaxation dynamics of o-dichlorobenzene in its lowest excited singlet state. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.12.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Thomas AM, Yang T, Dangi BB, Kaiser RI, Kim GS, Mebel AM. Oxidation of the para-Tolyl Radical by Molecular Oxygen under Single-Collison Conditions: Formation of the para-Toloxy Radical. J Phys Chem Lett 2016; 7:5121-5127. [PMID: 27973866 DOI: 10.1021/acs.jpclett.6b02357] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Crossed molecular beam experiments were performed to elucidate the chemical dynamics of the para-tolyl (CH3C6H4) radical reaction with molecular oxygen (O2) at an average collision energy of 35.3 ± 1.4 kJ mol-1. Combined with theoretical calculations, the results show that para-tolyl is efficiently oxidized by molecular oxygen to para-toloxy (CH3C6H4O) plus ground-state atomic oxygen via a complex forming, overall exoergic reaction (experimental, -33 ± 16 kJ mol-1; computational, -42 ± 8 kJ mol-1). The reaction dynamics are analogous to those observed for the phenyl (C6H5) plus molecular oxygen system which suggests the methyl group is a spectator during para-tolyl oxidation and that application of phenyl thermochemistry and reaction rates to para-substituted aryls is likely a suitable approximation.
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Affiliation(s)
- Aaron M Thomas
- Department of Chemistry, University of Hawai'i at Ma̅noa , Honolulu, Hawaii 96822, United States
| | - Tao Yang
- Department of Chemistry, University of Hawai'i at Ma̅noa , Honolulu, Hawaii 96822, United States
| | - Beni B Dangi
- Department of Chemistry, University of Hawai'i at Ma̅noa , Honolulu, Hawaii 96822, United States
| | - Ralf I Kaiser
- Department of Chemistry, University of Hawai'i at Ma̅noa , Honolulu, Hawaii 96822, United States
| | - Gap-Sue Kim
- Dharma College, Dongguk University , 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, South Korea
| | - Alexander M Mebel
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
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6
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Stankus B, Budarz JM, Kirrander A, Rogers D, Robinson J, Lane TJ, Ratner D, Hastings J, Minitti MP, Weber PM. Femtosecond photodissociation dynamics of 1,4-diiodobenzene by gas-phase X-ray scattering and photoelectron spectroscopy. Faraday Discuss 2016; 194:525-536. [DOI: 10.1039/c6fd00135a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a multifaceted investigation into the initial photodissociation dynamics of 1,4-diiodobenzene (DIB) following absorption of 267 nm radiation. We combine ultrafast time-resolved photoelectron spectroscopy and X-ray scattering experiments performed at the Linac Coherent Light Source (LCLS) to study the initial electronic excitation and subsequent rotational alignment, and interpret the experiments in light of Complete Active Space Self-Consistent Field (CASSCF) calculations of the excited electronic landscape. The initially excited state is found to be a bound 1B1 surface, which undergoes ultrafast population transfer to a nearby state in 35 ± 10 fs. The internal conversion most likely leads to one or more singlet repulsive surfaces that initiate the dissociation. This initial study is an essential and prerequisite component of a comprehensive study of the complete photodissociation pathway(s) of DIB at 267 nm. Assignment of the initially excited electronic state as a bound state identifies the mechanism as predissociative, and measurement of its lifetime establishes the time between excitation and initiation of dissociation, which is crucial for direct comparison of photoelectron and scattering experiments.
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Affiliation(s)
| | - James M. Budarz
- Dept. of Chemistry
- Brown University
- Providence
- USA
- SLAC National Accelerator Laboratory
| | - Adam Kirrander
- EaStCHEM
- School of Chemistry
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
| | - David Rogers
- EaStCHEM
- School of Chemistry
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
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7
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Shen Q, He JH, Zhang JL, Wu K, Xu GQ, Wee ATS, Chen W. Self-assembled two-dimensional nanoporous molecular arrays and photoinduced polymerization of 4-bromo-4′-hydroxybiphenyl on Ag(111). J Chem Phys 2015; 142:101902. [DOI: 10.1063/1.4906116] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Qian Shen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Singapore-Peking University Research Centre for a Sustainable Low-Carbon Future, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
| | - Jing Hui He
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Singapore-Peking University Research Centre for a Sustainable Low-Carbon Future, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
| | - Jia Lin Zhang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Kai Wu
- Singapore-Peking University Research Centre for a Sustainable Low-Carbon Future, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
- BNLMS, SKLSCUSS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Guo Qin Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Singapore-Peking University Research Centre for a Sustainable Low-Carbon Future, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
- National University of Singapore (Suzhou) Research Institute, Suzhou, China
| | - Andrew Thye Shen Wee
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore
| | - Wei Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Singapore-Peking University Research Centre for a Sustainable Low-Carbon Future, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore
- National University of Singapore (Suzhou) Research Institute, Suzhou, China
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore
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Liu BK, Wang BX, Wang YQ, Wang L. Wavelength-dependent Photodissociation Dynamics of Benzaldehyde. CHINESE J CHEM PHYS 2009. [DOI: 10.1088/1674-0068/22/06/587-591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Liu B, Zhu J, Wang B, Wang Y, Wang L. Time-Resolved Dynamics of NO2 in Its Conical Intersection Region. J Phys Chem A 2009; 113:13839-44. [DOI: 10.1021/jp907041a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benkang Liu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
| | - Jingyi Zhu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
| | - Bingxing Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
| | - Yanqiu Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
| | - Li Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian 116023, China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
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11
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Cao ZZ, Wei ZR, Hua LQ, Hu CJ, Zhang S, Zhang B. Ultrafast dynamics of o-bromofluorobenzene studied by time-resolved photoelectron imaging. Chemphyschem 2009; 10:1299-304. [PMID: 19343750 DOI: 10.1002/cphc.200900096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Photodissociation dynamics and rotational wave packet coherences of o-bromofluorobenzene are studied by femtosecond time-resolved photoelectron imaging [figure: see text]. The decay of different photoelectron rings shows the population decay of states from which the lifetimes of different states are determined. The variation of photoelectron angular distributions reflects the evolution of rotational coherences.Photodissociation dynamics and rotational wave packet coherences of o-bromofluorobenzene are studied by femtosecond time-resolved photoelectron imaging (TR-PEI) spectroscopy combined with the (1+2') resonance-enhanced multiphoton ionization (REMPI). Photoelectron kinetic energy and angular distributions indicate ionization dynamics from some Rydberg states at the (1+1') photon energy. The lifetimes of the S(1) (A') and T(2) (A') states are determined from the decay of the photoelectron signals to be 38 ps and 27 ps. The electron population decay of the two states is attributed to predissociation and tunneling dissociation. The variation of time-dependent anisotropy parameters in the first 5 ps shows the rotational wave coherences of molecule.
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Affiliation(s)
- Zhen-Zhou Cao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China
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12
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Chapter 1 Multireference and Spin–Orbit Calculations on Photodissociations of Hydrocarbon Halides. ADVANCES IN QUANTUM CHEMISTRY 2009. [DOI: 10.1016/s0065-3276(08)00401-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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14
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Tian YC, Liu YJ, Fang WH. Theoretical investigation on o-, m-, and p-chlorotoluene photodissociations at 193 and 266 nm. J Chem Phys 2007; 127:044309. [PMID: 17672692 DOI: 10.1063/1.2755960] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Photodissociations of the o-, m-, and p-chlorotoluene at 193 and 266 nm were investigated by ab initio calculations with and without spin-orbit interaction. The experimentally observed photodissociation channels were clearly assigned by multistate second order multiconfigurational perturbation theory (MS-CASPT2) calculated potential energy curves. The dissociation products with spin-orbit-coupled states of Cl*(2P1/2) and Cl(2P3/2) were identified by MS-CASPT2 in conjunction with spin-orbit interaction through complete active space state interaction (MS-CASPT2/CASSI-SO) calculations. The effects of methyl rotation and substituent on the photodissociation mechanism were discussed in detail.
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Affiliation(s)
- Yan-Cong Tian
- College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
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