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Dynamics of OH Formation in the Photodissociation of o-Nitrobenzoic Acid at 295 and 355 nm
Zhou, Can-Hua; Cheng, Shi-Bo; Sun, Ju-Long; Yin, Hong-Ming; Han, Ke-Li; He, Guo-Zhong; Yin HM(尹鸿鸣)
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY A
2009-04-30
DOI10.1021/jp900567u
Volume113Issue:17Pages:4923-4929
Indexed BySCI
SubtypeArticle
Department11
Funding Project1101
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Physics
WOS KeywordLASER-INDUCED FLUORESCENCE ; BENZOIC-ACID ; STATE DISTRIBUTION ; MONOMER ; PRODUCT ; DISSOCIATION ; NITROTOLUENE ; COMPLEXES ; MECHANISM ; FRAGMENT
AbstractPhotodissociation dynamics of o-nitrobenzoic acid at 295 and 355 nm is studied by probing the nascent OH photoproduct employing the single-photon laser-induced fluorescence technique. At both of the photolysis wavelengths, the OH fragments are found to be vibrationally cold but have different rotational state distributions. Upon photolysis at 295 nm, the relative population of OH in different rotational states does not follow the Boltzmann equilibrium distribution, whereas upon photolysis at 355 rim, a Boltzmann distribution is observed with a rotational temperature of 1010 +/- 100 K. Between the two spin-orbit states, (2)Pi(3/2) and (2)Pi(1/2) the former is found to be preferentially populated, and the distribution of the Pi(A') state for the Lambda-doublet is dominant at both of the wavelengths studied. Several possible dissociation pathways of o-nitrobenzoic acid leading to formation of the OH fragment are investigated computationally. Oil the basis of the theoretical and experimental studies, a possible mechanism of OH formation from the photodissociation of o-nitrobenzoic acid at 295 and 355 nm is proposed.
Language英语
URL查看原文
WOS IDWOS:000265529800015
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/102015
Collection中国科学院大连化学物理研究所
Corresponding AuthorYin HM(尹鸿鸣)
AffiliationChinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Can-Hua,Cheng, Shi-Bo,Sun, Ju-Long,et al. Dynamics of OH Formation in the Photodissociation of o-Nitrobenzoic Acid at 295 and 355 nm[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2009,113(17):4923-4929.
APA Zhou, Can-Hua.,Cheng, Shi-Bo.,Sun, Ju-Long.,Yin, Hong-Ming.,Han, Ke-Li.,...&尹鸿鸣.(2009).Dynamics of OH Formation in the Photodissociation of o-Nitrobenzoic Acid at 295 and 355 nm.JOURNAL OF PHYSICAL CHEMISTRY A,113(17),4923-4929.
MLA Zhou, Can-Hua,et al."Dynamics of OH Formation in the Photodissociation of o-Nitrobenzoic Acid at 295 and 355 nm".JOURNAL OF PHYSICAL CHEMISTRY A 113.17(2009):4923-4929.
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