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Keywords:

  • coordination chemistry;
  • electronic structure;
  • iron;
  • silicates;
  • zinc
Thumbnail image of graphical abstract

Ferrous flatland: Two flattened FeIIO4 units that share an edge are found in the title compound (see structure). They are spanned by tripodal silanolate ligands, which form in situ from a trisilanol if iron ions are available for complexation. The compound approaches the situation in the natural iron silicate gillespite or in certain ceramics where square planar FeO4 units have also been found.