DICP OpenIR
Formation of lead/sulfur binary cluster ions by laser ablation
Liu, JB; Han, CY; Zheng, WJ; Gao, Z; Zhu, QH
KeywordLead/sulfur Clusters Laser Ablation Time-of-flight (Tof) Mass Spectrometer Photodissociation
Source PublicationINTERNATIONAL JOURNAL OF MASS SPECTROMETRY
1999-08-11
Volume189Issue:2-3Pages:147-156
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectPhysics, Atomic, Molecular & Chemical ; Spectroscopy
WOS Research AreaPhysics ; Spectroscopy
WOS KeywordOPTICAL-PROPERTIES ; PBS NANOCLUSTERS ; METAL ; PHOTODISSOCIATION
AbstractLead/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.
Language英语
WOS IDWOS:000082049200006
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138540
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
Recommended Citation
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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