C-Br bond fission dynamics in ultraviolet photodissociation of propargyl bromide

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	C-Br bond fission dynamics in ultraviolet photodissociation of propargyl bromide
	Shen, Huan ; Hua, Linqiang ; Cao, Zhenzhou ; Hu, Changjin ; Zhang, Bing 1
刊名	OPTICS COMMUNICATIONS
	2009-02-01
卷号	282 期号:3 页码:387-391
通讯作者	Zhang, B (reprint author), Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China.
英文摘要	The photodissociation dynamics of propargyl bromide has been investigated at 234 and 267 nm using ion velocity imaging technique coupled with a [2+1] resonance-enhanced multiphoton ionization scheme. The translational energy and angular distributions of Br((2)P(3/2)) and Br((2)P(1/2)) fragments were obtained. The energy distributions for Br and Br fragments were found to consist of two Gaussian components, which corresponding to two reaction paths on the excited potential energy surface. The high kinetic energy component was produced via an electronic dissociation from the repulsive n sigma* state, while the low kinetic energy component stem from intersystem crossing from pi pi* state to pi sigma* state. The average fraction of available energy imparted into product recoil for the high kinetic energy products was found to be nearly 0.46, in qualitative agreement with that predicted by a soft radical impulsive model. The angular distributions of Br and Br* fragments show a mostly isotropic, which exhibited an admixture of pi(C C) character with sigma*(C-Br) character in the Frank-Condon region upon electronic excitation. (C) 2008 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics
研究领域[WOS]	Optics
关键词[WOS]	193 NM PHOTODISSOCIATION ; VINYL BROMIDE ; ALLYL CHLORIDE ; PHOTOFRAGMENTATION ; DECOMPOSITION ; SPECTROSCOPY ; ELIMINATION ; PHOTOLYSIS ; RUPTURE ; ION
收录类别	SCI
语种	英语
WOS记录号	WOS:000262250400008
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/2276]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 10036, Peoples R China
推荐引用方式 GB/T 7714	Shen, Huan,Hua, Linqiang,Cao, Zhenzhou,et al. C-Br bond fission dynamics in ultraviolet photodissociation of propargyl bromide[J]. OPTICS COMMUNICATIONS,2009,282(3):387-391.
APA	Shen, Huan,Hua, Linqiang,Cao, Zhenzhou,Hu, Changjin,&Zhang, Bing.(2009).C-Br bond fission dynamics in ultraviolet photodissociation of propargyl bromide.OPTICS COMMUNICATIONS,282(3),387-391.
MLA	Shen, Huan,et al."C-Br bond fission dynamics in ultraviolet photodissociation of propargyl bromide".OPTICS COMMUNICATIONS 282.3(2009):387-391.