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Photodissociation Cross Section of ClOOCl at 330 nm
Jin, Bing1,2; Chen, I-Cheng1; Huang, Wen-Tsung1,3; Lien, Chien-Yu1; Guchhait, Nikhil1,4; Lin, Jim J.1,3; Lin ZM(林志民)
刊名JOURNAL OF PHYSICAL CHEMISTRY A
2010-04-15
DOI10.1021/jp909374k
114期:14页:4791-4797
收录类别SCI ; ISTP
文章类型Article
部门归属11
项目归属1101
产权排名2;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
关键词[WOS]CHLORINE PEROXIDE ; OZONE DEPLETION ; DIMER ; SPECTRUM ; CL2O2
英文摘要The photolysis rate of ClOOCl is crucial in the catalytic destruction of polar stratospheric ozone. In this work, we determined the photodissociation cross section of ClOOCl at 330 nm with a molecular beam and with mass-resolved detection. The photodissociation cross section is the product of the absorption cross section and the dissociation quantum yield. We formed an effusive molecular beam of ClOOCl at a nozzle temperature of 200 or 250 K and determined its photodissociation probability by measuring the decrease of the ClOOCl intensity upon laser irradiation. By comparing with a reference molecule (Cl-2), of which the absorption cross section and dissociation quantum yield are well-known, we determined the absolute photodissociation cross section of ClOOCl at 330 nm to be (2.31 +/- 0.11) x 10(-19) cm(2) at 200 K and (2.47 +/- 0.12) x 10(-19) cm(2) at 250 K. Impurity interference has been a well-recognized problem in conventional spectroscopic studies of ClOOCl; our mass-resolved measurement directly overcomes such a problem. This measurement of the ClOOCl photolysis cross section at 330 nm is particularly useful in constraining its atmospheric photolysis rate, which in the polar stratosphere peaks near this wavelength.
语种英语
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WOS记录号WOS:000276341300014
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被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103399
专题中国科学院大连化学物理研究所
通讯作者Lin ZM(林志民)
作者单位1.Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
4.Univ Calcutta, Dept Chem, Kolkata 700009, India
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Jin, Bing,Chen, I-Cheng,Huang, Wen-Tsung,et al. Photodissociation Cross Section of ClOOCl at 330 nm[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(14):4791-4797.
APA Jin, Bing.,Chen, I-Cheng.,Huang, Wen-Tsung.,Lien, Chien-Yu.,Guchhait, Nikhil.,...&林志民.(2010).Photodissociation Cross Section of ClOOCl at 330 nm.JOURNAL OF PHYSICAL CHEMISTRY A,114(14),4791-4797.
MLA Jin, Bing,et al."Photodissociation Cross Section of ClOOCl at 330 nm".JOURNAL OF PHYSICAL CHEMISTRY A 114.14(2010):4791-4797.
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