Organoplatinum Hydroxo Compounds

TL;DRAbstract

A series of monomeric platinum (II) hydroxo supported by bulky diimine ligands have been synthesized and fully characterized. A thorough investigation of their corresponding reactivity have been carried out to determine if they participate in a water splitting cycle. Heating bis hydroxo at elevated temperatures (>80oC) in the presence of arene C-H bonds resulted in the double 1,2-C-H bond addition to form the corresponding bis phenyl complex with loss of H2O. This process was found to be catalyzed by in-situ produced platinum particles. 1,2-addition of H2 across the Pt-OH bonds was also observed but the corresponding platinum hydride species were too unstable to characterize or isolate. Several of the platinum (II) hydroxo species form stable adducts with silver bis-N-triflimide, where the silver cation was found to be engaging in a Lewis acid/base interaction with the hydroxide moiety. These silver supported adducts were found to activate aromatic C-H bonds at room temperature and

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