Gas-phase measurements of the influence of stepwise solvation on the kinetics of SN2 reactions of solvated F− with CH3Cl and CH3Br and of solvated Cl− with CH3Br

Author:

Bohme Diethard K.,Raksit Asit B.

Abstract

Flowing afterglow measurements are reported which reveal the influence of stepwise solvation on the nucleophilicity of F and Cl in the gas phase at room temperature. The specific rates of nucleophilic displacement reactions with CH3Cl and CH3Br are followed for additions of up to three molecules of solvent for F solvated with D2O, CH3OH, and C2H5OH and for Cl solvated with CH3OH, C2H5OH, CH3COCH3, HCOOH, and CH3COOH. The observed precipitous response of the specific rate to solvation is attributed to intermediate features of plausible reaction energy profiles.

Publisher

Canadian Science Publishing

Subject

Organic Chemistry,General Chemistry,Catalysis

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