Title | State-to-state photodissociation dynamics of CO2 at 157 nm |
Author | |
Corresponding Author | Chen, Zhichao; Parker, David H.; Yuan, Kaijun |
Publication Years | 2022-10-19
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DOI | |
Source Title | |
ISSN | 1463-9076
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EISSN | 1463-9084
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Volume | 24Issue:40 |
Abstract | State-to-state photodissociation of CO2(v(2) = 0 and 1) at 157 nm via the O(D-1) + CO(X-1 sigma(+)) channel was studied by using the sliced velocity map imaging technique. Both the O(D-1) and CO(X-1 sigma(+)) products were detected by (2 + 1) resonance enhanced multiphoton ionization (REMPI). Detection of CO via the B-1 sigma(+) <-<- X-1 sigma(+) transition allowed ro-vibrational state-selective detection, and combined with imaging, the fragment energy and angular distributions have been derived. For CO(v = 0 and 1|j) products from the CO2(v(2) = 0) molecule, the angular distributions of low-j CO display positive anisotropic parameters (about 0.8); with j increasing, the product anisotropic parameters gradually reduce to zero. While for CO(v = 0 and 1|j) products from the vibrational excited CO2(v(2) = 1) molecule, the angular distributions of low-j CO also display positive anisotropic parameters; with j increasing, the product anisotropic parameters first decrease to zero and then become negative (about -0.5). Experimental results show that the observed variation of the product angular distribution with the rotational quantum number of CO is consistent with trends predicted by a classical model for non-axial fragment recoil. The results support advanced theoretical predictions of a predominantly parallel transition to the bent 2(1)A ' excited state of CO2, where bending introduces torque during the direct dissociation process. |
URL | [Source Record] |
Indexed By | |
Language | English
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SUSTech Authorship | Others
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Funding Project | Open Foundation of the State Key Laboratory of Molecular Reaction Dynamics in DICP, CAS["SKLMRD-K202209","SKLMRD-K202121"]
; Open Foundation of Key Laboratory of Functional Materials and Devices for Informatics of Anhui Higher Education Institutes[FMDI202104]
; National Natural Science Foundation of China[21773236]
; Natural Science Research Project of Education Department of Anhui Province["KJ2020A0544","KJ2019A0521"]
; Innovation Program for Quantum Science and Technology[2021ZD0303304]
; Liaoning Revitalization Talents Program[XLYC1907154]
; EU[642820]
; Dutch National Science foundation NWO[648.000.024]
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WOS Research Area | Chemistry
; Physics
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WOS Subject | Chemistry, Physical
; Physics, Atomic, Molecular & Chemical
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WOS Accession No | WOS:000869851000001
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Publisher | |
ESI Research Field | CHEMISTRY
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Data Source | Web of Science
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Citation statistics |
Cited Times [WOS]:0
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Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/406861 |
Department | Department of Chemistry |
Affiliation | 1.Fuyang Normal Univ, Key Lab Funct Mat & Devices Informat Anhui Higher, Fuyang 236037, Anhui, Peoples R China 2.Fuyang Normal Univ, Sch Phys & Elect Engn, Fuyang 236037, Anhui, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China 4.Univ Nijmegen, Dept Mol & Laser Phys, NL-6525 ED Nijmegen, Netherlands 5.Hefei Univ Technol, Dept Civil Engn, Hefei 230009, Peoples R China 6.Hefei Natl Lab, Hefei 230088, Peoples R China 7.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China |
Recommended Citation GB/T 7714 |
Zhang, Zhiguo,Xin, Min,Xin, Yu,et al. State-to-state photodissociation dynamics of CO2 at 157 nm[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2022,24(40).
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APA |
Zhang, Zhiguo.,Xin, Min.,Xin, Yu.,Zhao, Shutao.,Jin, Yanling.,...&Yang, Xueming.(2022).State-to-state photodissociation dynamics of CO2 at 157 nm.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,24(40).
|
MLA |
Zhang, Zhiguo,et al."State-to-state photodissociation dynamics of CO2 at 157 nm".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 24.40(2022).
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