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Formation of lead/sulfur binary cluster ions by laser ablation
Liu, JB; Han, CY; Zheng, WJ; Gao, Z; Zhu, QH
关键词Lead/sulfur Clusters Laser Ablation Time-of-flight (Tof) Mass Spectrometer Photodissociation
刊名INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
1999-08-11
189期:2-3页:147-156
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Physics, Atomic, Molecular & Chemical ; Spectroscopy
研究领域[WOS]Physics ; Spectroscopy
关键词[WOS]OPTICAL-PROPERTIES ; PBS NANOCLUSTERS ; METAL ; PHOTODISSOCIATION
英文摘要Lead/sulfur binary cluster ions were produced by laser single ablation and laser double ablation, respectively, photolyzed by a UV laser and detected with a tandem time-of-flight (TOF) mass spectrometer. The distribution of cluster ions produced by laser single ablation is different from that produced by laser double ablation. By laser single ablation on a mixed Pb + S target, PbnSn-1+ and PbnSn- are formed as stable compositions that serve as structural skeletons of the binary clusters. All other cluster ions can be indicated as PbnSm+ with m greater than or equal to n - 1 or PbnSm- with m greater than or equal to n, produced by the attachment of excess S atoms to PbnSn-1+ or PbnSn-. The stable compositions shown above are also found in the fragments from the main photodissociation channels of cluster cations, confirming their special stability. The structural models of the cluster ions with stable compositions are proposed. On the other hand, by laser double ablation on a separated Pb target and S target, the Pb clusters and S clusters are formed independently and then react with each other to generate binary cluster ions PbnSm+ and PbnSm- with n = 1-7 and m greater than or equal to 0. These two different formation pathways, by laser single ablation and laser double ablation, respectively, can lead to distinct differences in the compositions and distributions of the cluster ions. The different properties, such as internal energies or structural isomers, for a single stoichiometry from the different formation pathways are also discussed. (Int J Mass Spectrom 189 (1999) 147-156) (C) 1999 Elsevier Science B.V.
语种英语
WOS记录号WOS:000082049200006
引用统计
被引频次:6[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/321008/138540
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
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GB/T 7714
Liu, JB,Han, CY,Zheng, WJ,et al. Formation of lead/sulfur binary cluster ions by laser ablation[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,1999,189(2-3):147-156.
APA Liu, JB,Han, CY,Zheng, WJ,Gao, Z,&Zhu, QH.(1999).Formation of lead/sulfur binary cluster ions by laser ablation.INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,189(2-3),147-156.
MLA Liu, JB,et al."Formation of lead/sulfur binary cluster ions by laser ablation".INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 189.2-3(1999):147-156.
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