Fig. 3: Stepwise oxidations of 7H, 8H, and 9H. | Nature Communications

Fig. 3: Stepwise oxidations of 7H, 8H, and 9H.

From: Oxidative cyclo-rearrangement of helicenes into chiral nanographenes

Fig. 3: Stepwise oxidations of 7H, 8H, and 9H.

a Two-step oxidation of 7H, 8H, and 9H. b Possible cyclization processes following a radical cation mechanism and their activation energies (free energies of the corresponding transition states, TS, in kcal mol−1). The free energies of the radical cation intermediates O7H·+, O8H·+, O9H·+ are set as 0.

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