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Production and isolation of ligated metal(IV)-oxo ions by tandem mass spectrometry

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Abstract

High valent metal(IV)-oxo species, [M([DOUBLE BOND]O)(MeIm)n(OAc)]+ (M = Mn–Ni, MeIm = 1-methylimidazole, n = 1–2), which are relevant to biology and oxidative catalysis, were produced and isolated in gas-phase reactions of the metal(II) precursor ions [M(MeIm)n(OAc)]+ (M = Mn–Zn, n = 1–3) with ozone. The precursor ions [M(MeIm)(OAc)]+ and [M(MeIm)2(OAc)]+ were generated via collision-induced dissociation of the corresponding [M(MeIm)3(OAc)]+ ion. The dependence of ozone reactivity on metal and coordination number is discussed. Copyright © 2010 John Wiley & Sons, Ltd.

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