Vibrational state-specific nonadiabatic photodissociation dynamics of OCS⁺ via A²Î _1/2 (ν₁ 0 ν₃) states

Wang, Yaling1,2; Zhao, Yunfan1,2; Zhang, Ning1,2; Wang, Wenxin1,2; Hu, Liru1,2; Luo, Chang1,2; Yuan, Daofu1,2; Zhou, Xiaoguo1,2; Parker, David H.3; Yang, Xueming4,5,6; Wang, Xingan1,2,6

2024-02-28

10.1063/5.0191893

JOURNAL OF CHEMICAL PHYSICS   影响因子和分区

0021-9606

1089-7690

The identification and analysis of quantum state-specific effects can significantly deepen our understanding of detailed photodissociation dynamics. Here, we report an experimental investigation on the vibrational state-mediated photodissociation of the OCS+ cation via the A(2)Pi(1/2) (nu(1) 0 nu(3)) states by using the velocity map ion imaging technique over the photolysis wavelength range of 263-294 nm. It was found that the electronically excited S+ product channel S+(D-2(u)) + CO (X-1 Sigma(+)) was significantly enhanced when the nu(1) and nu(3) vibrational modes were excited. Clear deviations in the branching ratios of the electronically excited S+ channel were observed when the vibrational modes nu(1) and nu(3) were selectively excited. The results reveal that vibrationally excited states play a vital role in influencing the nonadiabatic couplings in the photodissociation process.

SCI ; EI

英语

其他

National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809["22125302","22327801"] ; National Natural Science Foundation of China[2021ZD030304]

Chemistry ; Physics

Chemistry, Physical ; Physics, Atomic, Molecular & Chemical

WOS:001168721800002

AIP Publishing

CHEMISTRY

Web of Science

1.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China
3.Radboud Univ Nijmegen, Inst Mol & Mat, Dept Mol & Laser Phys, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands
4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
5.Southern Univ Sci & Technol, Sch Sci, Dept Chem, Shenzhen 518055, Peoples R China
6.Hefei Natl Lab, Hefei 230088, Peoples R China

Wang, Yaling,Zhao, Yunfan,Zhang, Ning,et al. Vibrational state-specific nonadiabatic photodissociation dynamics of OCS⁺ via A²Î _1/2 (ν₁ 0 ν₃) states[J]. JOURNAL OF CHEMICAL PHYSICS,2024,160(8).

Wang, Yaling.,Zhao, Yunfan.,Zhang, Ning.,Wang, Wenxin.,Hu, Liru.,...&Wang, Xingan.(2024).Vibrational state-specific nonadiabatic photodissociation dynamics of OCS⁺ via A²Î _1/2 (ν₁ 0 ν₃) states.JOURNAL OF CHEMICAL PHYSICS,160(8).

Wang, Yaling,et al."Vibrational state-specific nonadiabatic photodissociation dynamics of OCS⁺ via A²Î _1/2 (ν₁ 0 ν₃) states".JOURNAL OF CHEMICAL PHYSICS 160.8(2024).