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Antimalarial activity of 1,2,4,5-tetraoxanes is believed to be related to oxidation of heme by the peroxide group. This observation suggests that electron affinity of tetraoxanes is related to its activity. We have investigated the electron affinity of 20 tetraoxanes using quantum chemistry calculations at X3LYP/6-31(+)G(d) level and analyzed its correlation with activity. Other two parameters, dipole...