Table 3.

Dissociation free energy and acidity equilibrium constant values in water phase for—A1 (AFB₁O₇-H⁺), A2 (AFB₁O₁₀-H⁺), A3 (AFB₁O₁₃O₁₂-H⁺), A4 (AFB₁O₁₂-H⁺), A5 (AFB₁O₁₄-H⁺), A6 (AFB₁O₁₃-H⁺), A7 (AFB₁O₁₂-O₁₃-H⁺).

AFB1H+ ⇆ AFB1 + H+
Structure	ΔG Formation kcal/mol	ΔG Dissociation Reaction kcal/mol	Ka	pKa
A1	−694,497.342	−0.230	0.68	0.17
A2	−694,494.788	−2.324	50.53	−1.70
A3	−694,518.340	21.228	2.76 × 1016	15.56
A4	−694,515.571	18.459	2.95 × 1014	13.53
A5	−694,489.274	−7.838	556,713.56	−5.76
A6	−694,510.194	13.082	2.58 × 1010	9.59
A7	−694,513.410	16.298	1.13 × 1012	11.95