Gas-Phase Ionic Reactions: Dynamics and Mechanism of Nucleophilic Displacements

摘要

Nucleophili displacement reactions (the S_N2 reaction) of ions in the gas phase are a prototypical reaction system that allows a study of dynamics, mechanisms, and struc- ture-energy relations. This article reviews aspects of the kinetics (especially the appli- cability of statistical reaction rate theory), the relation of structure and reactivity, and the effects of small numbers of solvent molecules on the reaction and compares the behavior of the ionic reaction in the gas phase with that in solution.