NO_2在第二电子吸收带的光解  

Photodissociation of NO_2 in the Second Absorption Band

作　　者：李亚民[1] 孙巨龙[1] 尹鸿鸣[1] 韩克利[1] 何国钟[1] 

机构地区：[1]中国科学院大连化学物理研究所分子反应动力学国家重点实验室,大连116023

出　　处：《Chinese Journal of Chemical Physics》2002年第3期185-187,共3页化学物理学报（英文）

基　　金：国家自然科学基金资助项目 (2 995 30 0 1)~~

摘　　要：运用单光子激光诱导荧光方法 ,研究了NO2 分子在第二吸收带的光解反应动力学 .首次报道了NO2(B2 B2 态 )光解初生态产物NO自由基的v″ =1,2的转动分布 .发现了NO自由基v″ =1的明显双模式分布 .Photodissociation of NO2 in its second absorption band ( B2B2 state) has been studied by monitoring the nascent NO X(2)Pi product using the single-photon laser-induced fluorescence (LIF) technique. The rotational distributions of the nascent NO photofragment after photodissociation of NO2 at (BB2)-B-2 state have been firstly reported. In nu' = 1, the rotational distributions are bimodal. We proposed that there are two dissociation mechanisms that govern the product internal distributions and the photodissociation mechanism.

关 键 词：激光诱导荧光 NO NO2 二氧化氮 光解机理 反应动力学 一氧化氮自由基 

分 类 号：O644.13[理学—物理化学] O613.61[理学—化学]