Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1194896 | International Journal of Mass Spectrometry | 2008 | 4 Pages |
Abstract
The rate constants and product branching ratios for the reactions of phosphorus oxychloride anions, POxClyâ for x = 1-2 and y = 1-3, with O2(a 1Îg), Cl2, and H2O have been measured in a selected ion flow tube (SIFT) at 298 K. A mixture of O2(a 1Îg) in O2 has been produced using a recently designed chemical singlet oxygen generator (sparger) with an emission detection scheme adopted previously in our laboratory. The experiments continue a series of investigations into the oxidation reactions of POxClyâ ions, searching for pathways to the terminal PO2â and PO3â ions observed in combustion chemistry with POCl3 present. None of the POxClyâ ions react with H2O or O2(a 1Îg). The O2(a 1Îg) rate constants have a limit of <1 Ã 10â11 cm3 sâ1, except for PO2Clâ where a limit of <5 Ã 10â11 cm3 sâ1 has been determined. The H2O rate constants have limits of <1 Ã 10â11 cm3 sâ1. All of the POxClyâ ions react with Cl2, excluding PO3â and PO2Cl2â. Depending on the reactant ion, Clâ, Cl2â or PO2Cl2â product ions form.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Anthony J. Midey, Itzhak Dotan, A.A. Viggiano,