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Keywords:

  • calixarenes;
  • cluster compounds;
  • coordination chemistry;
  • magnetism;
  • manganese

Abstract

A bis-phenolate that has structural similarities to both calix[4]arene and the oxacalix[n]arenes provides access to a “butterfly”-like Mn4 cluster in which all metals are in the oxidation state+3. Specific properties of this ligand, in comparison to others in the literature, offer a route to influencing the orientation of the Jahn–Teller axes within this cluster motif, which possesses a rare oxidation state arrangement.