title: Attempting to understand (and control) the relationship between structure and magnetism in an extended family of Mn(6) single-molecule magnets.
abstract: The synthesis and characterisation of a large family of hexametallic [Mn(III)(6)] Single-Molecule Magnets of general formula [Mn(III)(6)O(2)(R-sao)(6)(X)(2)(sol)(4-6)] (where R = H, Me, Et; X = (-)O(2)CR' (R' = H, Me, Ph etc) or Hal(-); sol = EtOH, MeOH and/or H(2)O) are presented. We show how deliberate structural distortions of the [Mn(3)O] trinuclear moieties within the [Mn(6)] complexes are used to tune their magnetic properties. These findings highlight a qualitative magneto-structural correlation whereby the type (anti- or ferromagnetic) of each Mn(2) pairwise magnetic exchange is dominated by the magnitude of each individual Mn-N-O-Mn torsion angle. The observation of magneto-structural correlations on such large polymetallic complexes is rare and represents one of the largest studies of this kind.
authors.affiliation: School of Chemistry, The University of Edinburgh, Edinburgh. UK EH9 3JJ.
authors.forename: Ross
authors.initials: R
authors.lastname: Inglis
authors.forename: Leigh F
authors.initials: LF
authors.lastname: Jones
authors.forename: Constantinos J
authors.initials: CJ
authors.lastname: Milios
authors.forename: Saiti
authors.initials: S
authors.lastname: Datta
authors.forename: Anna
authors.initials: A
authors.lastname: Collins
authors.forename: Simon
authors.initials: S
authors.lastname: Parsons
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.forename: Stephen
authors.initials: S
authors.lastname: Hill
authors.forename: Spyros P
authors.initials: SP
authors.lastname: Perlepes
authors.forename: Stergios
authors.initials: S
authors.lastname: Piligkos
authors.forename: Euan K
authors.initials: EK
authors.lastname: Brechin