accepted mechanisms of OÀO bond formation in water oxidation have been proposed (Scheme 2): (1) water nucleophilic attack (WNA) and (2) the interaction of
two metal-oxo (I2M) [77–86]. In WNA mechanism, water molecules play the role of
nucleophilic reagent, attacking the formed high-energy metal-oxo species to form
Scheme 1 Kok cycle in which the OEC cycles through five redox states, S0ÀS4, via consecutive
photo-oxidation. Reprinted with permission from Ref. [61]
Scheme 2 Schematic representation of the two mechanistic pathways for OÀO bond formation.
Reprinted with permission from Ref. [61]
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H.-T. Zhang and M.-T. Zhang
two metal-oxo (I2M) [77–86]. In WNA mechanism, water molecules play the role of
nucleophilic reagent, attacking the formed high-energy metal-oxo species to form
Scheme 1 Kok cycle in which the OEC cycles through five redox states, S0ÀS4, via consecutive
photo-oxidation. Reprinted with permission from Ref. [61]
Scheme 2 Schematic representation of the two mechanistic pathways for OÀO bond formation.
Reprinted with permission from Ref. [61]
386
H.-T. Zhang and M.-T. Zhang