SAGE Publications, European Journal of Mass Spectrometry, 3(21), p. 557-567, 2015
DOI: 10.1255/ejms.1332
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The ion–molecule reactions of the rhenium oxide anions, [ReO x]− ( x = 2–4) with the organic substrates methane, ethene, methanol, and acetic acid have been examined in a linear ion trap mass spectrometer. The only reactivity observed was between [ReO2]− and acetic acid. Isotope-labelled experiments and high-resolution mass spectrometry measurements were used to assign the formulas of the ionic products. Collision-induced dissociation and ion–molecule reactions with acetic acid were used to probe the structures of the mass-selected primary product ions. Density functional theory calculations [PBE0/LanL2DZ6-311+G(d)] were used to suggest possible structures. The three primary product channels observed are likely to arise from the formation of the metallalactone [ReO2(CH2CO2)]− ( m/z 277) and H2, [CH3ReO2(OH)]− ( m/z 251) and CO, and [ReO3]− ( m/z 235), H2 and CH2CO.