Abstract:The binuclear iridium complex [(cod)(Cl)Ir(bpi)Ir(cod)]PF 6 (bpi = pyridine-2-ylmethylpyridine-2-ylmethyleneamine; cod = 1,5-cyclooctadiene) reveals a noteworthy asymmetric binuclear coordination geometry, wherein the bpi ligand acts as a heteroditopic ligand and shows an unusual -coordinated imine moiety. This species is an effective precatalyst for water oxidation. After a short incubation time the catalyst reveals a turnover frequency of 3400 mol mol 1 s 1 with overall turnover number >1000.
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