A Family of Calix[4]arene-Supported [(Mn2Mn2II)-Mn-III] Clusters

Stephanie M. Taylor, Georgios Karotsis, Ruaraidh D. McIntosh, Stuart Kennedy, Simon J. Teat, Christine M. Beavers, Wolfgang Wernsdorfer, Stergios Piligkos, Scott J. Dalgarno, Euan K. Brechin

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Abstract

In the cone conformation calix[4]arenes possess lower-rim polyphenolic pockets that are ideal for the complexation of various transition-metal centres. Reaction of these molecules with manganese salts in the presence of an appropriate base (and in some cases co-ligand) results in the formation of a family of calixarene-supported [(Mn2Mn2II)-Mn-III] clusters that behave as single-molecule magnets (SMMs). Variation in the alkyl groups present at the upper-rim of the cone allows for the expression of a degree of control over the self-assembly of these SMM building blocks, whilst retaining the general magnetic properties. The presence of various different ligands around the periphery of the magnetic core has some effect over the extended self-assembly of these SMMs.

Original languageEnglish
Pages (from-to)7521-7530
Number of pages10
JournalChemistry - A European Journal
Volume17
Issue number27
DOIs
Publication statusPublished - 27 Jun 2011

Keywords

  • cluster compounds
  • SINGLE-MOLECULE MAGNETS
  • HIGH-SPIN MOLECULES
  • CALIXARENES
  • supramolecular chemistry
  • MODEL COMPLEXES
  • manganese
  • calixarenes
  • self-assembly
  • CAPSULES
  • LIGAND BOND LENGTHS
  • VALENCE SUM ANALYSIS
  • TRANSITION-METAL
  • CHEMISTRY
  • METALLOENZYMES

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    Taylor, S. M., Karotsis, G., McIntosh, R. D., Kennedy, S., Teat, S. J., Beavers, C. M., Wernsdorfer, W., Piligkos, S., Dalgarno, S. J., & Brechin, E. K. (2011). A Family of Calix[4]arene-Supported [(Mn2Mn2II)-Mn-III] Clusters. Chemistry - A European Journal, 17(27), 7521-7530. https://doi.org/10.1002/chem.201003327