Production of doubly charged clusters (H2O)n • Ba2+ and (H2O)n • Ca2+ under low temperature fast atom bombardment conditions

被引：5

作者：

Boryak, OA ^{[1
]}

Kosevich, MV ^{[1
]}

Shelkovsky, VS ^{[1
]}

Orlov, VV ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temperature Phys & Engn, UA-310164 Kharkov, Ukraine

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2000年 / 194卷 / 01期

关键词：

low temperature fast atom bombardment; doubly charged metal ions; hydrate clusters;

D O I：

10.1016/S1387-3806(99)00157-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Production of doubly charged ions of alkaline earth metals Ba2+ and Ca2+ and their doubly charged clusters with water molecules (H2O)(n). Ba2+, (H2O)(n). Ca2+(n = 1, 2, 3) by means of low temperature fast atom bombardment technique is observed in the case of crystalline hydrates of BaCl2 and CaCl2, salts, formed during freezing of water-salt solutions. Reasons for a possibility of production of the doubly charged species in the case of the two indicated salts and their absence in the case of chlorides of some other divalent metals (Mg, Mn, Co, Cu, Zn) are discussed. As to singly charged secondary ions Me+, MeCl+, MeOH+, [(H2O)(n). MeCl](+), [(H2O)(n). MeOH](+) (where Me is metal), high efficiency of their production from crystalline hydrates was observed and possible explanation of the phenomenon is suggested. (C) 2000 Elsevier Science B.V.

引用

页码：49 / 52

页数：4

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