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Photodissociation Dynamics of Nitrous Oxide near 145 nm: The O(S-1(0)) and O(P-3(J=2,1,0)) Product Channels
Yuan, Daofu1; Yu, Shengrui2; Xie, Ting1; Chen, Wentao1; Wang, Siwen1; Tan, Yuxin1; Wang, Tao3; Yuan, Kaijun3; Yang, Xueming1,3; Wang, Xingan1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY A
2018-03-15
ISSN1089-5639
DOI10.1021/acs.jpca.7b10756
Volume122Issue:10Pages:2663-2669
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Physics
WOS KeywordANGULAR-DISTRIBUTIONS ; N2O PHOTODISSOCIATION ; VACUUM-ULTRAVIOLET ; ORBITAL ALIGNMENT ; SPECTRA ; DISSOCIATION ; PHOTOLYSIS ; ENERGY ; OXYGEN ; STATE
AbstractWe report the study of photodissociation dynamics of nitrous oxide in the vacuum ultraviolet region, using the time-sliced velocity map ion imaging technique. Ion images of the O(S-1(0)) and O(P-3(J=2,1,0)) products were measured at nine photolysis wavelengths from 142.55 to 148.79 nm. The product channels O(S-1(0)) + N-2(X-1 Sigma(+)(g)) and O(P-3(J=2,1,0)) + N-2(A(3)Sigma(+)(u)) have been observed. For these dissociation channels, the total kinetic energy releases of the dissociated products were acquired. With vibrational structures of the N-2 coproducts partially resolved in the experimental images, the branching ratios of different vibrational states of the N-2 coproducts were determined, and the vibrational state specific anisotropy parameters (beta values) were derived. Analysis shows that the O(S-1(0)) + N-2(X-1 Sigma(+)(g)) channel is primarily formed via nonadiabatic couplings between the C ((1)Pi) state and the higher-lying D ((1)Sigma(+)) state of the N2O. A moderate rotational excitation and high vibrational excitation of N-2(X-1 Sigma(+)(g)) products have been observed through this pathway. On the other hand, for the O(P-3(J=2,1,0)) + N-2(A(3)Sigma(+)(u)) channels, where a slightly higher rotational excitation of N-2 coproducts have been observed, the possible pathway would be via nonadiabatic couplings from the C ((1)Pi) state to the lower-lying A((1)Sigma(-))state.
Language英语
WOS IDWOS:000427910100007
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168933
Collection中国科学院大连化学物理研究所
Corresponding AuthorYuan, Kaijun; Yang, Xueming; Wang, Xingan
Affiliation1.Univ Sci & Technol China, ChEM Collaborat Innovat Ctr Chem Energy Mat, Dept Chem Phys, Hefei Natl Lab Phys Sci Microscale, Jinzhai Rd 96, Hefei 230026, Anhui, Peoples R China
2.Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Gengwen Rd 1108, Hangzhou 311231, Zhejiang, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Zhongshan Rd 457, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Daofu,Yu, Shengrui,Xie, Ting,et al. Photodissociation Dynamics of Nitrous Oxide near 145 nm: The O(S-1(0)) and O(P-3(J=2,1,0)) Product Channels[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2018,122(10):2663-2669.
APA Yuan, Daofu.,Yu, Shengrui.,Xie, Ting.,Chen, Wentao.,Wang, Siwen.,...&Wang, Xingan.(2018).Photodissociation Dynamics of Nitrous Oxide near 145 nm: The O(S-1(0)) and O(P-3(J=2,1,0)) Product Channels.JOURNAL OF PHYSICAL CHEMISTRY A,122(10),2663-2669.
MLA Yuan, Daofu,et al."Photodissociation Dynamics of Nitrous Oxide near 145 nm: The O(S-1(0)) and O(P-3(J=2,1,0)) Product Channels".JOURNAL OF PHYSICAL CHEMISTRY A 122.10(2018):2663-2669.
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