Rate constants for the reactions of the OH radical with (CH3)2NH, (CH3)3N, and C2H5NH2 over the temperature range 298–426 °K

Rate constants for the reactions of the OH radical with (CH3)2NH, (CH3)3N, and C2H5NH2 have been determined over the temperature range 298–426°K by a flash photolysis–resonance fluorescence technique. The Arrhenius expressions obtained are with rate constants at room temperature of (6.54±0.66) ×10−11, (6.09±0.61) ×10−11, and (2.77±0.28) ×10−11 cm3 molecule−1 sec−1 for (CH3)2NH, (CH3)3N, and C2H5NH2, respectively. Possible mechanisms and atmospheric significance of these reactions are discussed.