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Keywords:

  • cubane structures;
  • microtubes;
  • photosystem II;
  • polyoxometalates;
  • self-assembly
Thumbnail image of graphical abstract

Three's a charm: The title compound (see picture, right, WO6 purple polyhedra, Mn orange and brown, Si green, O red) contains an embedded mixed-valence {Mn5O6} cubane core, which is structurally similar to the active site in photosystem II. Solid-, solution-, and gas-phase studies indicate the presence of three lacunary Keggin fragments, thereby giving insight into the complex solution chemistry of plenary POM fragments.