3. Activation Energies (ΔG ^≠, in kcal mol^–1), Individual (k _i, in M^–1 s^–1), and Molar Fraction-Corrected Total Reaction Rates (k _DPPH, in M^–1 s^–1) of Reaction between Studies Species and DPPH Radical.

compound	position	ΔG ≠*	k i	k total	k DPPH
Gspt	C3	24.4	5.06 × 10–3	3.58 × 102
	C7	21.3	4.92 × 10–3
	C8	19.9	6.10 × 100
	C3′	24.7	5.05 × 10–6
	SET	14.0	3.52 × 102
Gsp	C3	26.7	3.88 × 10–7	1.97 × 10–1
	C4′	24.3	2.07 × 10–5
	SET	18.4	1.97 × 10–1
Hbf	C4′	26.1	6.84 × 10–7	1.02 × 100	2.26 × 101
	SET	17.1	1.91 × 100
Hbf–	C3	24.5	3.17 × 101	2.16 × 101
	C4′	25.3	3.70 × 10–6
	SET	15.2	4.62 × 101