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Vacuum ultraviolet photodissociation dynamics of N2O via the C-1 Pi state: The N(D-2(j=)5/2, (3/2)) + NO(X-2 Pi) product channels

文献类型：期刊论文

作者Xie, Ting3; Yu, Shengrui2; Yuan, Daofu3; Chen, Wentao3; Zhou, Jiami2; Wang, Tao1; Chen, Zhichao1; Yuan, Kaijun1; Yang, Xueming1,2,3; Wang, Xingan3
刊名JOURNAL OF CHEMICAL PHYSICS
出版日期2018-09-14
卷号149期号:10页码:7
ISSN号0021-9606
DOI10.1063/1.5042627
通讯作者Yu, Shengrui(sryu@zjnu.cn) ; Yuan, Kaijun(kjyuan@dicp.ac.cn) ; Yang, Xueming(xmyang@dicp.ac.cn) ; Wang, Xingan(xawang@ustc.edu.cn)
英文摘要We study the vacuum ultraviolet photodissociation dynamics of N2O via the C-1 Pi state by using the time-sliced velocity map ion imaging technique. Images of N(D-2(j=)5/2, (3/2)) products from the N atom elimination channels were acquired at a set of photolysis wavelengths from 142.55 to 148.19 nm. Vibrational states of the NO(X-2 Pi) co-fragments were partially resolved in experimental images. From these images, the product total kinetic energy release distributions (TKERs), branching ratios of the vibrational states of NO(X-2 Pi) co-fragments, and the vibrational state specific angular anisotropy parameters (beta) have been determined. Notable features were found in the experimental results: the TKERs show that the NO(X-2 Pi) co-fragments are highly vibrationally excited. For the highly vibrationally excited state of NO(X-2 Pi), a bimodal rotational structure is found at all the studied photolysis wavelengths. Furthermore, the vibrational state specific beta values of both spin-orbit channels (j = 3/2, 5/2) clearly show a monotonic decrease as the vibrational quantum number of NO(X-2 Pi) increases. These observations suggest that multiple dissociation pathways play a role in the formation of the N(D-2(j=)5/2, (3/2)) + NO(X-2 Pi) products: one corresponds to a fast dissociation pathway through the linear state (the C-1 Pi state) following the initial excitation to a slightly bent geometry in the vicinity of the linear C-1 Pi configuration, leading to the low rotationally excited components with relatively large beta values; the other corresponds to a relatively slow dissociation pathway through the bent C(3(1)A') or C(3(1)A '') state, leading to moderately rotationally excited NO(X-2 Pi) products with smaller beta values. Published by AIP Publishing.
WOS关键词O(P-3(J=2,1,0)) PRODUCT CHANNELS ; POTENTIAL-ENERGY-SURFACES ; NITROUS-OXIDE ; ORBITAL ALIGNMENT ; ANGULAR-DISTRIBUTIONS ; ABSORPTION-SPECTRUM ; 157 NM ; DISSOCIATION ; SPECTROSCOPY ; ANISOTROPY
资助项目National Natural Science Foundation of China[21473173] ; National Natural Science Foundation of China[21773213] ; National Natural Science Foundation of China[21403207] ; National Natural Science Foundation of China[21590802] ; National Natural Science Foundation of China[21673232] ; National Natural Science Foundation of China[21503206] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17000000]
WOS研究方向Chemistry ; Physics
语种英语
WOS记录号WOS:000444758100020
出版者AMER INST PHYSICS
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://cas-ir.dicp.ac.cn/handle/321008/167064]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Yu, Shengrui; Yuan, Kaijun; Yang, Xueming; Wang, Xingan
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
2.Zhejiang Normal Univ, Hangzhou Inst Adv Studies, 1108 Gengwen Rd, Hangzhou 311231, Zhejiang, Peoples R China
3.Univ Sci & Technol China, Ctr Adv Chem Phys iChEM, Collaborat Innovat Ctr Chem Energy Mat, Dept Chem Phys,Sch Chem & Mat Sci, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Ting,Yu, Shengrui,Yuan, Daofu,et al. Vacuum ultraviolet photodissociation dynamics of N2O via the C-1 Pi state: The N(D-2(j=)5/2, (3/2)) + NO(X-2 Pi) product channels[J]. JOURNAL OF CHEMICAL PHYSICS,2018,149(10):7.
APA Xie, Ting.,Yu, Shengrui.,Yuan, Daofu.,Chen, Wentao.,Zhou, Jiami.,...&Wang, Xingan.(2018).Vacuum ultraviolet photodissociation dynamics of N2O via the C-1 Pi state: The N(D-2(j=)5/2, (3/2)) + NO(X-2 Pi) product channels.JOURNAL OF CHEMICAL PHYSICS,149(10),7.
MLA Xie, Ting,et al."Vacuum ultraviolet photodissociation dynamics of N2O via the C-1 Pi state: The N(D-2(j=)5/2, (3/2)) + NO(X-2 Pi) product channels".JOURNAL OF CHEMICAL PHYSICS 149.10(2018):7.

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来源：大连化学物理研究所

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