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题名: Formation and dissociation of protonated pyridine-methanol cluster ions at 355 and 266 nm
作者: Hu, YJ;  Wang, XY;  Lu, RC
刊名: CHEMICAL PHYSICS LETTERS
发表日期: 2000-10-06
卷: 328, 期:4-6, 页:337-345
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1102
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The multi-photon ionization process of the hydrogen-bond cluster of pyridine-methanol has been investigated using a conventional and reflectron time-of-flight mass spectrometer (RTOF-MS) at 355 and 266 nm laser wavelengths, respectively. The sequences of the protonated cluster ions (CH3OH)(n)H+ and (C5H5Nn)(CH3OH)(m)H+ (n = 1,2) were observed at both laser wavelengths, while the sequence of the cluster ions (CH3)OHn (H2O)H+ was observed only at 355 nm laser wavelength. The difference between the relative signal intensities of the protonated methanol cluster ions at different laser wavelengths is attributed to different photoionization mechanisms. Some nascent cluster ions in metastable states dissociated during free flight to the detector. The dissociation kinetics is also discussed. (C) 2000 Elsevier Science B.V.
关键词[WOS]: HYDROGEN-BONDED CLUSTERS ;  MULTIPHOTON IONIZATION ;  AB-INITIO ;  ELECTRONIC-SPECTRA ;  GAS-PHASE ;  COMPLEXES ;  WATER ;  AMMONIA ;  IR
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000089836500004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85417
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:
Hu, YJ,Wang, XY,Lu, RC. Formation and dissociation of protonated pyridine-methanol cluster ions at 355 and 266 nm[J]. CHEMICAL PHYSICS LETTERS,2000,328(4-6):337-345.
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