The exchange of the NH in 5,6-dimethyl 1,2,3-benzotriazole has been studied by total line shape analysis of 1H nmr spectra. It has been observed that the rate of the process is dependent on concentration, temperature, and the water present in solvent as impurity. The activation parameters (Ea, D*H, D*S, D*G298) for the title compound have been obtained.
L PHILLIPS ,MANSOOR AHMAD ,
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