Despite bearing a potentially reactive site on the central backbone carbon, aryl substituted �-diketiminate ligands are widely employed to stabilize unusual oxidation states and coordination environments and to support active catalytic species.  The five-coordinate Pt(IV) complex, (tBuMe2nacanc)PtMe3 (tBuMe2nacnac = [((4-tBu-2,6-Me2C6H2)-NC(CH3))2CH]), undergoes a formal cycloaddition reaction with molecular oxygen to generate a six-coordinate species in which one oxygen atom is bound to the metal and the other is bound to the central carbon of the ligand backbone. Over time this peroxo complex reacts further to generate a product in which the oxygen-oxygen bond has been cleaved. The cooperative reactivity between the central carbon of the ligand backbone and the metal with molecular oxygen and other unsaturated species will be discussed.

Metal-ligand cooperativity in O<sub>2</sub> activation: Observation of a "Pt–O–O–C" peroxo intermediate

241st National Meeting (2011)

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Metal-ligand cooperativity in O2 activation: Observation of a "Pt–O–O–C" peroxo intermediate

Metal-ligand cooperativity in O₂ activation: Observation of a "Pt–O–O–C" peroxo intermediate