Journal
CHEMICAL PHYSICS LETTERS
Volume 470, Issue 4-6, Pages 162-165Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2009.01.031
Keywords
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Funding
- Academy of Sciences of the Czech Republic [Z40550506]
- Grant Agency of the Czech Republic [203/08/1487]
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The formal metal(III) cations [CoO2H2](+) and [NiO2H2](+) can be generated by electrospray ionization of aqueous solutions of the corresponding metal(II) nitrates. In contrast to M=Fe, the fragmentations of [CoO2H2](+) and [NiO2H2](+) imply that the hydrated metal-oxide cations, (H2O) MO+, are more favorable compared to the dihydroxo isomers M(OH)(2)(+) than for M=Fe. The experimental data are corroborated by density functional calculations of the [MO2H2](+) surfaces for M=Fe-Ni, which predict Fe(OH)(2)(+) to be more stable than (H2O) FeO+, whereas the opposite applies for M=Ni and both isomers are energetically close for M=Co. (C) 2009 Elsevier B. V. All rights reserved.
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