A Kinetic Study of the Formation and Dissociation of the Meisenheimer Complex Formed between 1,3,5-Trinitrobenzene and the Hydroxide Ion in Micellar Dodecyltrimethylammonium bromide Solution

Article abstract of DOI:10.1039/f19858100335

The rates and formation and dissociation of the thermoaddition complex of 1,3,5-trinitrobenzene with OH^- has been investigated in micellar solutions of dodecyltrimethylammonium bromide (DTABr) using a stopped-flow spectrometer.We have observed and measured three processes which proceed under different conditions of acidity: (a) formation of the ? complex, (b) spontaneous (equilibrium) dissociation in less basic solutions and (c) dissociation via proton attack in acid solutions.These processes are influenced by the background KBr electrolyte.The interphase potentialΔφ =φ_m-φ_w, depicted in the pseudophase model, allows us to explain the variations of the rate constants.