Formation of lead/sulfur binary cluster ions by laser ablation
文献类型：期刊论文
| 作者 | Liu, JB; Han, CY; Zheng, WJ; Gao, Z; Zhu, QH |
| 刊名 | INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
 |
| 出版日期 | 1999-08-11 |
| 卷号 | 189期号:2-3页码:147-156 |
| 关键词 | Lead/sulfur Clusters Laser Ablation Time-of-flight (Tof) Mass Spectrometer Photodissociation |
| ISSN号 | 1387-3806 |
| 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 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/74885]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Gao, Z |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：化学研究所
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