Table 3.

Gibbs free energies of activation and apparent rate constants for the favorable hydrogen atom transfer reaction of HOO^. with Q, Fl, and Bf.

System	OH position	ΔG‡, 1M (kcal·mol−1)	kapp (L·mol−1·s−1)
Q	3	16.5	2.2 × 102
	3′	38.5	3.1 × 10−15
	4′	16.2	1.2 × 103
Fl	3′	24.1	1.7 × 10−5
	4′	21.0	4.5 × 100
Bf	3′	18.7	4.2 × 101