Photochemistry of aryl halides: Photodissociation dynamics

被引:274
作者
Han, Ke-Li [1 ]
He, Guo-Zhong [1 ]
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
基金
中国国家自然科学基金;
关键词
photodissociation dynamics; photofragment translational spectroscopy; nonadiabatic process; intersystem crossing; ab initio calculation; PHOTOFRAGMENT TRANSLATIONAL SPECTROSCOPY; SUPPORTED NICKEL-CATALYSTS; INTERNAL-ROTATION; AROMATIC-MOLECULES; P-FLUOROTOLUENE; KINETIC-ENERGY; METHYL-GROUP; 193; NM; MULTIREFERENCE CALCULATIONS; OZONE DESTRUCTION;
D O I
10.1016/j.jphotochemrev.2007.03.002
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In recent years, the photodissociation dynamics of aryl halides has been a subject of intensive studies, which is closely related to the atmospheric chemistry. Here we present a review on the photochemistry of aryl halides, with emphasis on the recent progress in photodissociation dynamics at 266 nm by using photofragment translational spectroscopy. The ab initio calculations have also been employed to investigate those photodissociation processes. It has been found that the photodissociation of aryl halides at 266 nm is attributed to the nonadiabatic process via intersystem crossings from bound singlet excited state to triplet excited state and/or via internal conversion from bound singlet excited state to ground state. Also, the substitution effects in the photodissociation dynamics of aryl halides are discussed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:55 / 66
页数:12
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