Abstract: Electrochemical oxidation potentials have been determined by using cyclic voltammetry and second-harmonic ac voltammetry for benzyllithium, allyllithium, tert- butylpropargyllithium, and triphenylmethyllithium in tetrahydrofuran/ hexamethylphosphoramide. The use of these potentials along with bond dissociation energies and the known pKa of triphenylmethane permit the estimation of ion-pair ...