Molek, C. D.; McLain, J. L.; Adams, N. G.; Babcock, L. M.; Gibbs, L. L. Experimental values of rate constants and ion product distributions for reactions of a series of ions with CS2.
Int J Mass Spectrom 2004,
235, 199-205.
Abstract
Rate constants and product ion distributions have been determined in a Selected Ion Flow Tube (SIFT) for the reactions of He+, He-2(+), Ar+, N-2(+), N+, CO+, CO2+, O+, D+, CS+, C+, S+, CS2+, S-2(+) and D-3(+) with CS2 at 297 K. These ions have recombination energies varying from 2372 kJ/mol (24.58 eV) for He+ to 903 U/mol (9.36 eV) for S-2(+). The reactions, except for the Ar+, S2+ and CS2+ reactions proceed at, or close to, the collisional rate with charge transfer (both dissociative and non-dissociative) being an important mechanism. S+ is a common product and, in the case of D-3(+), exothermic proton transfer is rapid. For the slower reaction Of CS2+, ternary association occurs. The reactions are discussed relative to the reactivity of these ions with the analogues, OCS and CO2. (C) 2004 Elsevier B.V. All rights reserved.