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	Ion-Pair Dissociation Dynamics of Cl-2 in the Range 13.26-13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method
	Hao, Yusong ; Zhou, Chang ; Mo, Yuxiang
	2010-10-12 ; 2010-10-12
关键词	OPTICAL DOUBLE-RESONANCE MULTIPHOTON IONIZATION SPECTROSCOPY JET-COOLED CL-2 MOLECULAR PHOTODISSOCIATION ABSORPTION-SPECTRUM EMISSION-SPECTRUM STATE CL2 PHOTOELECTRON POSITION Chemistry, Physical Physics, Atomic, Molecular & Chemical
中文摘要	The ion-pair dissociation dynamics Of Cl-2 in the range 13.26-13.73 eV have been studied employing coherent extreme ultraviolet radiation (XUV) and the velocity map imaging method. The Cl-(S-1(0)) ion-pair yield spectrum has been measured, and 80 velocity map images of Cl-(S-1(0)) have been recorded for the strong peaks in the spectrum. From the images, two dissociation channels corresponding to Cl-('So) + Cl+(P-3(j)) and Cl-('So) + Cl+(D-1(2)) have been found. The branching ratios among the fragments Cl+(P-3(0.1)), Cl+(P-3(2)), and Cl+(D-1(2)) and their corresponding anisotropy parameters beta have been determined. It is concluded that the ion-pair dissociation occurs via the predissociation of Rydberg states and its dynamics strongly depend on the excitation energies. The perpendicular and parallel transitions correspond to the excitation to two major Rydberg series converging to ion-core Cl-2(+)(A(2)Pi(u)),...sigma(2)(g)pi(3)(u)pi(4)(g)[A(2)Pi(u)]ns sigma(g), (1)Pi(u) (n = 6,7), and...sigma(2)(g)pi(3)(u)pi(4)(g)[A(2)Pi(u)]nd pi(g), 1 Sigma(+)(u) (n = 4,5), respectively For the production of fragments Cl+(D-1(2)), it is proposed that the perpendicular transitions are from the excitation to Rydberg states [A(2)Pi(u)]ns sigma(g), (1)Pi(u) that is predissociated by ion-pair state 2,nu,while the parallel transitions are from the excitation to [A(2)Pi(u)]nd pi(g), (1)Sigma(+)(u) that interacts with ion-pair states O-u(+)(D-1(2)), O-u(+)(P-3(2)) and O-u(+)(P-3(0)).
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81361]
专题	清华大学
推荐引用方式 GB/T 7714	Hao, Yusong,Zhou, Chang,Mo, Yuxiang. Ion-Pair Dissociation Dynamics of Cl-2 in the Range 13.26-13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method[J],2010, 2010.
APA	Hao, Yusong,Zhou, Chang,&Mo, Yuxiang.(2010).Ion-Pair Dissociation Dynamics of Cl-2 in the Range 13.26-13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method..
MLA	Hao, Yusong,et al."Ion-Pair Dissociation Dynamics of Cl-2 in the Range 13.26-13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method".(2010).

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