PRESSURE AND SOLVENT EFFECTS ON THE KINETICS OF A MENSHUTKIN REACTION IN ALIPHATIC ALCOHOLS

Article abstract of DOI:10.1002/poc.610080202

The kinetics of the Menshutkin reaction between triethylamine and iodomethane was studied at 313 K in seven primary and secondary alcanols.An accurate conductometric method was employed to obtain second-order rate constants at pressures of 0.1-200 MPa.Volumes and isothermal compressions of activation were calculated by different model-based equations which are compared.Activation volumes at 0.1 MPa are in the range -26 to -33 cm³mol^-1.Procedures for dissecting intra- and intermolecular contributions to the volume of activation are discussed.A clear dependence of model parameters on the solvent volumetric properties was found.