Amino radical

In chemistry, the amino radical, ·NH2, also known as the aminyl or azanyl, is the neutral form of the amide ion (NH−2).

This rate was redetermined by using two-pulse radiolysis competition methods with benzoate and thiocyanate ions at pH 11.4.

Several studies also utilized the redox system of TiIII−NH2OH for the production of amino radicals using electron paramagnetic resonance (ESR) spectroscopy and polarography.

In general, amino radicals are highly reactive and short lived; however, this is not the case when reacted with some organic molecules.

Relative reactivities of the amino radical with several organic compounds have been reported, but the absolute rate constants for such reactions remain unknown.

In experiments at pH 11.3 and 12, using 1.5 M NH3 and varying concentrations of phenol between 4 and 10 mM, the formation of the phenoxyl radical absorption was observed with a rate constant of (3 + 0.4)×106 M−1 s−1.

Rate constants for reaction of NH 2 radicals. These rate constants for the amino radical reactions were measured in a 1978 study by Neta et al. by following the kinetics of formation of the resultant radicals. The observations were made at the absorption maxima of these radicals. [ 3 ]