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Photodissociation cross sections of ClOOCl at 248.4 and 266 nm
Lien, Chien-Yu1; Lin, Wei-Yen1,2; Chen, Hsueh-Ying1; Huang, Wen-Tsung1,2; Jin, Bing1,3; Chen, I-Cheng1; Lin, Jim J.1,2,4; Lin ZM(林志民)
关键词Chlorine Compounds Photodissociation Spectrochemical Analysis
刊名JOURNAL OF CHEMICAL PHYSICS
2009-11-07
DOI10.1063/1.3257682
131期:17页:174301-1-174301-6
收录类别SCI
文章类型Article
部门归属11
项目归属1101
产权排名3;5
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Atomic, Molecular & Chemical
研究领域[WOS]Physics
关键词[WOS]DICHLORINE MONOXIDE CL2O ; ULTRAVIOLET-SPECTRUM ; CHLORINE PEROXIDE ; OZONE DEPLETION ; SELF-REACTION ; DIMER ; PHOTOLYSIS ; DYNAMICS ; HOCL ; DEPENDENCE
英文摘要This study utilized a mass-resolved detection of ClOOCl to determine its photodissociation cross section, which is the product of the absorption cross section and dissociation quantum yield. An effusive molecular beam of ClOOCl was generated and its photodissociation probability was determined through measuring the decrease in the ClOOCl beam intensity upon laser irradiation. By comparing with a reference molecule, the absolute cross sections of ClOOCl were obtained without knowing its absolute concentration. The determined cross section of ClOOCl at 248.4 nm is (8.85 +/- 0.42)x10(-18) cm(2) at 200 K, significantly larger than previously reported values. The temperature dependence of the cross section was investigated at 248.4 nm in the range of 160-260 K; only a very small and negative temperature effect was observed. Because 248.4 nm is very close to the peak of the UV absorption band of ClOOCl, this work provides a new calibration point for normalizing relative absorption spectra of ClOOCl. In this work, the photodissociation cross section at 266 nm and 200 K was also reported to be (4.13 +/- 0.21)x10(-18) cm(2).
语种英语
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WOS记录号WOS:000271664500021
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/101947
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.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
3.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan
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GB/T 7714
Lien, Chien-Yu,Lin, Wei-Yen,Chen, Hsueh-Ying,et al. Photodissociation cross sections of ClOOCl at 248.4 and 266 nm[J]. JOURNAL OF CHEMICAL PHYSICS,2009,131(17):174301-1-174301-6.
APA Lien, Chien-Yu.,Lin, Wei-Yen.,Chen, Hsueh-Ying.,Huang, Wen-Tsung.,Jin, Bing.,...&林志民.(2009).Photodissociation cross sections of ClOOCl at 248.4 and 266 nm.JOURNAL OF CHEMICAL PHYSICS,131(17),174301-1-174301-6.
MLA Lien, Chien-Yu,et al."Photodissociation cross sections of ClOOCl at 248.4 and 266 nm".JOURNAL OF CHEMICAL PHYSICS 131.17(2009):174301-1-174301-6.
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