Ferromagnetic Ni-II Discs

Richard T. W. Scott, Leigh F. Jones, Ian S. Tidmarsh, Barbara Breeze, Rebecca H. Laye, Joanna Wolowska, Daniel J. Stone, Anna Collins, Simon Parsons, Wolfgang Wernsdorfer, Guillem Aromi, Eric J. L. McInnes, Euan K. Brechin

Research output: Contribution to journalArticlepeer-review

Abstract

A family of planar disc-like hexa-, octa- and decametallic Ni-II complexes exhibit dominant ferromagnetic exchange. The deca- and octametallic clusters [Ni-10(II)(tmp)(2)(N-3)(8)(acac)(6)(MeOH)(6)] (1, H(3)tmp = 1,1,1-tris(hydroxymethyl)propane; acac = acetylacetonate) and [Ni-8(II)(thme)(2)(O2CPh)(4)(CI)(6)(MeCN)(6)(H2O)(2)] (2, H(3)thme = 1,1,1-tris(hydroxymethyl)ethane) represent rare examples of Ni-II-based single-molecule magnets, and [Ni-10(II)] (1) possesses the largest barrier to magnetisation reversal of any Ni-II single-molecule magnet to date.

Original languageEnglish
Pages (from-to)12389-12398
Number of pages10
JournalChemistry - A European Journal
Volume15
Issue number45
DOIs
Publication statusPublished - 2009

Keywords

  • cluster compounds
  • magnetic properties
  • nickel
  • single-molecule magnets
  • tripodal ligands
  • SINGLE-MOLECULE MAGNETS
  • CRYSTAL-STRUCTURE
  • SCHIFF-BASE
  • NICKEL(II) COMPLEXES
  • EPR-SPECTRA
  • CLUSTERS
  • MAGNETIZATION
  • LIGANDS
  • TRANSITION
  • SUSCEPTIBILITY

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