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Photodissociation of NO2 in the Second Absorption Band
Li Yamin, Sun Julong, Yin Hongming, Han Keli*, He Guozhong
State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023
Abstract:
Photodissociation of NO2 in its second absorption band(B2B2 state)has been studied by monitoring the nascent NO X2Πproduct using the single-photon laser-induced fluorescence(LIF)technique. The rotational distributions of the nascent NO photofragment after photodissociation of NO2 at B2B2 state have been firstly reported. In v" = 1,the rotational distributions are bimodal. We proposed that there are two dissociation mechanisms that govern the product internal distributions and the photodissociation mechanism.
Key words:  Laser-induced-fluorescence,NO2,NO
FundProject:国家自然科学基金资助项目(29953001).
NO2 在第二电子吸收带的光解
李亚民, 孙巨龙, 尹鸿鸣, 韩克利*, 何国钟
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
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(B2B2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.进而提出了可能有两种竞争机理控制该反应.
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DOI:10.1088/1674-0068/15/3/185-187
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