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学科主题: 物理化学
题名: Formation of Hydroxyl Radical from the Photolysis of Salicylic Acid
作者: Zhou, Can-Hua1;  Cheng, Shi-Bo1;  Yin, Hong-Ming1;  He, Guo-Zhong1
通讯作者: 尹鸿鸣
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2011-05-26
DOI: 10.1021/jp2027077
卷: 115, 期:20, 页:5062-5068
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 11T3;1101
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
摘要: Formation of Hydroxyl Radical from the Photolysis of Salicylic Acid
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Photodissociation dynamics of salicylic acid (SA) in the gas phase at different photolysis wavelengths (266, 315-317 nm) is investigated by probing the nascent OH photoproduct employing the single-photon laser-induced fluorescence (LIF) technique. At all the photolysis wavelengths it is found that the nascent OH radicals are produced mostly in a vibrationally ground state (v '' = 0) and have similar rotational state distributions. The two spin-orbit and Lambda-doublet states of the OH fragment formed in the dissociation are measured to have a nonstatistical distribution at each photolysis wavelength. The LIF signal of the OH could be observed upon photolysis at 317 rim but not at 317.5 nm. The threshold of OH formation from SA photodissociation is estimated to be 98.2 +/- 0.9 kcal/mol. The effect of the phenolic OH group on. the dissociation of SA is discussed.
关键词[WOS]: PHOTODISSOCIATION DYNAMICS ;  BENZOIC-ACID ;  EXCITED-STATE ;  193 NM ;  ELECTRONIC STATES ;  OH FRAGMENT ;  ACETIC-ACID ;  DISSOCIATION ;  MOLECULES ;  MONOMER
语种: 英语
WOS记录号: WOS:000290652000006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115232
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Zhou, Can-Hua,Cheng, Shi-Bo,Yin, Hong-Ming,et al. Formation of Hydroxyl Radical from the Photolysis of Salicylic Acid[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2011,115(20):5062-5068.
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