Cores for thought! A new [Mn4O4]6+ "cubane" core complex (L6Mn4O4) with six facially bridging phosphinate chelate ligands (L−=(MePh)2PO2−) was synthesized. Photo-excitation releases molecular O2 by intramolecular coupling of two core oxygen atoms and selective rearrangement to a [Mn4O2]6+ "butterfly" core ([L5Mn4O2]+; see scheme). Thus the Mn4O4 cubane core exhibits unique reactivity in O2 evolution which may account for its presence in the photosynthetic enzyme.
|Number of pages||4|
|Journal||Angewandte Chemie - International Edition|
|Publication status||Published - Aug 3 2001|
- Cluster compounds
- Water oxidation
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