2009年03月15日

Oxidation in transtion

Many important biological and chemical processes, including photocatalytic water oxydation to molecular oxgen (of interrest as a route to artifical photosynthesis) and the activation of dioxygen on metal surfaces, are thought to involve transition metal terminal oxo complexes.

Poverenv et al. now report the synthersis of a platinum-based oxdizing reagent with potentially uzeful characteristics.

It's d^6 Pt(IV) terminal oxo complex that is not stabilized by anelectron accepting ligand framework, and so exhivits reactivity as both an inter-and intra-molecular oxygen donor and as an electrophile.

It also undergoes water activation to produce a terminal dihydroxo complex, which may be of relevance to the mechanism of water oxidation and other catalytic reactions.

posted by 0≠素子 at 00:30| Comment(0) | chemistry | このブログの読者になる | 更新情報をチェックする
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