Thus, it is concluded that the dissociation is maximum in FP-1 and
minimum in TP-1. The more basic nature of TP-1 having a 4-CH3
group is due to a hyper conjugation effect whereas due to the negative
inductive effect of a 4-F group in FP-1 the basicity is decreased. Thus, a
different substitution affects dissociation. Further, the dissociation of
the studied compounds is higher in DMF and increases with temperature.
The dissociation is found to be endothermic