title: Halide anions are formed from reactions between atomic metal anions and halogenated aromatic molecules.
abstract: Atomic metal anions (AMAs) Fe-, Cs-, Cu-and Ag-were generated in the gas phase by collisionally decomposing the corresponding metal-oxalate anion. Mass selected AMAs were allowed to react with halogenated and nitrated molecules (C6H5Cl, C6H4Cl2, C6H3Cl3, C6H5I, C6H5Br and C6H5NO2) in the collision hexapole of a triple-quadrupole mass spectrometer. Observed reactions include the predominant formation of X-(X = Cl, Br and I), as well as FeCl-, FeCl2-and FeCl3-when Fe- reacted with the mono, di and tri-chlorobenzenes; reactions between 1,4-dichlorobenzene and Cs-produced Cl-, CsCl-and CsCl2-; reactions involving iodobenzene also produced, CsI-, CsI2-and AgI-. The results suggest that the reaction to form X-(X = Cl, Br, I and NO2) may be a promising route to improving the detection efficiency by mass spectrometry for such analytes. Copyright © 2016 John Wiley & Sons, Ltd.
authors.affiliation: Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5, Canada.
authors.forename: Barbara B A
authors.initials: BB
authors.lastname: Francisco
authors.affiliation: Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5, Canada.
authors.forename: Emily
authors.initials: E
authors.lastname: Gee
authors.affiliation: Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5, Canada.
authors.forename: Jeffery
authors.initials: J
authors.lastname: Butson
authors.affiliation: Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5, Canada.
authors.forename: Paul M
authors.initials: PM
authors.lastname: Mayer
keywords: atomic metal anion; halide ion; halogen abstraction; halogenated aromatic molecules; negative ion electrospray; oxidative addition