The second order rate constants for the reaction of nitroethane with ammonia, methyl-, dimethyl-and trimethylamine in water at 0 and 5.2°are reported.2. The values of the rate constants at 00 are calculated from equilibrium data for the reaction of ammonium ion, methyl-, dimethyl-and trimethylammonium ions with the anion of nitroethane.3. The heats and entropies of activation for the above reactions are computed.4. The interpretation of the data indicates that the activated complex is not as strongly solvated as the product ions but more solvated than the reactants.5. The decreased base strength of trimethylamine appears to be due to the decreased solvation energy and hence increased reactivity of the trimethylammonium ion.Evanston, Illinois
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