Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Mass Spectrom. 2012 Dec;47(12):1537-45. doi: 10.1002/jms.3067.

Characterization of gas phase aggregates of bis(2-ethylhexyl)sulfosuccinate (AOT) and divalent metal ions. Elimination of radical species in the decomposition pathways of even-electron [AOTMIICl2]- anions.

Author information

  • 1Dipartimento di Chimica, Università degli Studi di Siena, Via Aldo Moro, I-53100, Siena, Italy. gianluca.giorgi@unisi.it.

Abstract

Structure and properties of even-electron anionic species formed by bis(2-ethylhexyl)sulfosuccinate (AOT) and divalent metal ions (M(II)) with stoichiometry [AOTM(II)Cl(2)](-) have been investigated by using electrospray ionization and different mass spectrometry techniques, such as high resolution, accurate mass measurements, collision-induced dissociation (CID) multiple-stage mass spectrometry. 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 [C(4)HO(6)SM(II)Cl](-•) so produced have been characterized by MS(3) experiments. Density functional theory calculations have been carried out for investigating structure and stability of the ionic species formed in the decomposition pathways.

Copyright © 2012 John Wiley & Sons, Ltd.

PMID:
23280741
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk