A Ferromagnetically Coupled Mn19 Aggregate with a Record S=83/2 Ground Spin State


  • This work was supported by Bordeaux 1 University, the CNRS, the Region Aquitaine, the DFG (SPP 1137 and the Center for Functional Nanostructures), QuEMolNa (MRTN-CT2003-504880), MAGMANet (NMP3-CT-2005-515767), and the Alexander von Humboldt Foundation.


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Mixing it up: A ground spin state of S=83/2 is found in the mixed-valent manganese aggregate [MnIII12MnII74-O)831-N3)8(HL)12(MeCN)6]2+ (H3L=2,6-bis(hydroxymethyl)-4-methylphenol; see polyhedral representation of the core) and arises through ferromagnetic coupling of all the metal centers.