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题名: The Composition and Formation Mechanism of Negative Mn/O Binary Clusters Produced by Laser Vaporization
作者: Li Haiyang1;  Ma Chensheng1;  Bai Jiling1;  He Guozhong1
关键词: Cluster ;  Aggregation mechanism ;  Laser vaporization ;  Time-of-flight mass spectrometry ;  Binomial distribution
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1997
DOI: 10.3866/PKU.WHXB19971017
卷: 13, 期:10, 页:946-949
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Time-of-flight mass spectrometry was used to investigate negative Mn-O clusters produced by 532 nm laser vaporization of MnCO3 solid pellet. Five series MnxOy-, x=1-33, y-x = 0,1,2,3,4 cluster ions were observed. For cluster ion MnxOy- with x >5, the mean valences of Mn atom in cluster MnxOy ions is 2.4 +/- 0.1, and is almost unchangeable with the size of cluster from x=5-25. The relative intensity of the observed peaks with the same x but different y, can be well fitted by a binomial distribution, for x=5-12 clusters. All the observed information indicate a gas-phase MnO, MnO2 molecule aggregation mechanism for the production of these oxygen-rich cluster ions.
语种: 英语
WOS记录号: WOS:000207602000017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142798
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.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Li Haiyang,Ma Chensheng,Bai Jiling,et al. The Composition and Formation Mechanism of Negative Mn/O Binary Clusters Produced by Laser Vaporization[J]. ACTA PHYSICO-CHIMICA SINICA,1997,13(10):946-949.
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