Photodissociation dynamics of CS2near 204 nm: The S(3PJ )+CS(X 1ς+) channels

Zhao，Min1; Li，Zhen Xing1; Xie，Ting1; Chang，Yao2; Wu，Fu Yan1; Wang，Qin1; Chen，Wen Tao1; Wang，Tao3; Wang，Xing An1; Yuan，Kai Jun2; Yang，Xue Ming2,3

2021-02-01

10.1063/1674-0068/cjcp2010183

化学物理学报   影响因子和分区

1674-0068

2327-2244

We study the photodissociation dynamics of CS2 in the ultraviolet region using the time-sliced velocity map ion imaging technique. The S(3PJ)+CS(X1ς+) product channels were observed and identified at four wavelengths of 201.36, 203.10, 204.85 and 206.61 nm. In the measured images of S(3PJ=2,1,0), the vibrational states of the CS(X1ς+) co-products were partially resolved and the vibrational state distributions were determined. Moreover, the product total kinetic energy releases and the anisotropic parameters were derived. The relatively small anisotropic parameter values indicate that the S(3PJ=2,1,0)+CS(X1ς+) channels are very likely formed via the indirect predissociation process of CS2. The study of the S(3PJ=2,1,0)+CS(X1ς+) channels, which come from the spin-orbit coupling dissociation process of CS2, shows that nonadiabatic process plays a role in the ultraviolet photodissociation of CS2.

Carbon disulfide Photodissociation Time-sliced velocity map ion imaging

SCI ; EI

英语

其他

WOS:000629031200010

20213210738073

Anisotropy ; Imaging techniques ; Kinetic energy ; Kinetics ; Spin orbit coupling

Imaging Techniques:746 ; Physical Chemistry:801.4 ; Classical Physics; Quantum Theory; Relativity:931 ; Physical Properties of Gases, Liquids and Solids:931.2

2-s2.0-85102476919

Scopus

1.Hefei National Laboratory for Physical Sciences at the Microscale,Department of Chemical Physics,School of Chemistry and Materials Science,University of Science and Technology of China,Hefei,230026,China
2.State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023,China
3.College of Science,Southern University of Science and Technology,Shenzhen,518055,China

Zhao，Min,Li，Zhen Xing,Xie，Ting,et al. Photodissociation dynamics of CS2near 204 nm: The S(3PJ )+CS(X 1ς+) channels[J]. 化学物理学报,2021,34(1):95-101.

Zhao，Min.,Li，Zhen Xing.,Xie，Ting.,Chang，Yao.,Wu，Fu Yan.,...&Yang，Xue Ming.(2021).Photodissociation dynamics of CS2near 204 nm: The S(3PJ )+CS(X 1ς+) channels.化学物理学报,34(1),95-101.

Zhao，Min,et al."Photodissociation dynamics of CS2near 204 nm: The S(3PJ )+CS(X 1ς+) channels".化学物理学报 34.1(2021):95-101.