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Photodissociation Dynamics of Carbon Dioxide Cation via the Vibrationally Mediated Ã2Πu,1/2 State: A Time-Sliced Velocity-Mapped Ion Imaging Study
Rui Mao1, Chao He2, Min Chen2, Dan-na Zhou2, Qun Zhang2, Yang Chen2
1.School of Mathematics and Physics and Chemical Engineering, Changzhou Institute of Technology, Changzhou 213032, China;2.Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
Abstract:
We report on the photodissociation dynamics of CO2+ via its Ã2Πu,1/2 state using the scheme of [1+1] photon excitation that is intermediated by the mode-selected Ã2Πu,1/2( u1,u2,0) vibronic states. Photodissociation fragment exciation spectrum and images of photofragment CO+ have been measured to obtain reaction dynamics parameters such as the available energy and the average translational energy. Combining with the potential energy functions of CO2+, the dissociation mechanism of CO2+ is discussed. The conformational variation of CO2+ from linear to bent on the photodissociation dynamics of CO2+ is verified.
Key words:  Photodissociation dynamics  Velocity map imaging  Carbon dioxide cation
FundProject:This work was supported by the Natural Science Foundation of Changzhou Institute of Technology (No.YN1507), Undergraduate Training Program for Innovation of Changzhou Institute of Technology (No.J150245), the China Postdoctoral Science Foundation (No.2013M531506), the National Natural Science Foundation of China (No.21273212)
二氧化碳分子离子经由Ã2Πu1/2电子态振动能级共振的光解动力学:一项时间切片离子速度成像技术研究
茆锐1, 何超2, 陈旻2, 周丹娜2, 张群2, 陈旸2
1.常州工学院数理与化工学院, 常州 213032;2.中国科学技术大学化学物理系, 合肥微尺度物质科学国家实验室(筹), 合肥 230026
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DOI:10.1063/1674-0068/30/cjcp1611208
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