Cobalt carbene ion: Reactions of Co+ with C2H4, cyclo-C3H6, and cyclo-C2H4O

Abstract

An ion beam apparatus is employed to study the formation of the cobalt carbene ion, CoCH ⁺ ₂. This ion is produced in the endothermic reaction of cobalt ions with ethene and cyclopropane and in an exothermic reaction with ethylene oxide. A model is proposed to account for the dependence of experimental cross sections on relative kinetic energy for the endothermic reactions. Using this model to interpret the experimental results, a bond dissociation energy D°(Co+–CH2)=3.7±0.3 eV is derived.

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