Characterization of gas phase aggregates ofbis(2-ethylhexyl)sulfosuccinate (AOT) anddivalent metal ions. Elimination of radicalspecies in the decomposition pathways ofeven-electron [AOTMIICl2]– anions

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Abstract

Structure and properties of even-electron anionic species formed by bis(2-ethylhexyl)sulfosuccinate (AOT) and divalentmetal ions(MII) with stoichiometry [AOTMIICl2]– have been investigated by using electrospray ionization and different mass spectrometrytechniques, such as high resolution, accurate mass measurements, collision-induced dissociation (CID) multiple-stage massspectrometry.Owing to CID, eliminations of neutrals,mainly consisting in hydrochloric acid, 2-ethyl-1-hexene and 2-ethylhexanol,and an unexpected loss of an alkyl radical have been observed. The radical anions [C4HO6SMIICl]–• so produced have beencharacterized by MS3 experiments. Density functional theory calculations have been carried out for investigating structure andstability of the ionic species formed in the decomposition pathways.
Lingua originaleEnglish
pagine (da-a)1537-1545
Numero di pagine9
RivistaJournal of Mass Spectrometry
Volume47
Stato di pubblicazionePublished - 2012

All Science Journal Classification (ASJC) codes

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