Collisional dissociation studies of Cu2+(H2O)n using electrospray ionization mass spectrometry

被引：41

作者：

Stone, JA ^{[1
]}

Vukomanovic, D

机构：

[1] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

[2] Queens Univ, St SAva Bioanalyt & Med Res, Kingston, ON K7L 5R9, Canada

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 1999年 / 185卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

electrospray; collision-assisted dissociation (CAD); copper (II); hydration;

D O I：

10.1016/S1387-3806(98)14063-0

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：

Contrary to an earlier report [A.T. Blades, P. Jayaweera, M.G. Ikonomou, P. Kebarle, J. Chem. Phys. 92 (1990) 5900], hydrated cupric ions Cu2+(H2O)(n) (n = 4-14) are readily produced in the gas phase by electrospray ionization and possess sufficient intensities for collision-assisted dissociation studies. Daughter ions, Cu2+(H2O)(x), with x as low as 2 are observed to be stable. Charge reduction yielding CuOH(H2O)(n-y)(+) is observed but declines in importance with increase in the size of the hydration shell. Methanol can exchange with some of the water molecules in Cu2+(H2O)(n). (Int J Mass Spectrom 185/186/187 (1999) 227-229) (C) 1999 Elsevier Science B.V.

引用

页码：227 / 229

页数：3

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