We report the syntheses, structures and magnetic properties of two decametallic Ni(II) clusters with unprecedented supertetrahedral cores, stabilised by the (hitherto unobserved) micro(6)-coordination modes of the tris-alkoxides [MeC(CH(2)O)(3)](3-) and [C(6)H(9)O(3)](3-).
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Ferromagnetic Ni(II) discs.
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November 2009
School of Chemistry, West Mains Road, Edinburgh, UK.
A family of planar disc-like hexa-, octa- and decametallic Ni(II) complexes exhibit dominant ferromagnetic exchange. The deca- and octametallic clusters [Ni(II) (10)(tmp)(2)(N(3))(8)(acac)(6)(MeOH)(6)] (1, H(3)tmp=1,1,1-tris(hydroxymethyl)propane; acac=acetylacetonate) and [Ni(II) (8)(thme)(2)(O(2)CPh)(4)(Cl)(6)(MeCN)(6)(H(2)O)(2)] (2, H(3)thme=1,1,1-tris(hydroxymethyl)ethane) represent rare examples of Ni(II)-based single-molecule magnets, and [Ni(II) (10)] (1) possesses the largest barrier to magnetisation reversal of any Ni(II) single-molecule magnet to date.
View Article and Find Full Text PDFSupertetrahedral decametallic Ni(II) clusters directed by micro(6)-tris-alkoxides.
Chem Commun (Camb)
June 2004
Department of Chemistry, The University of Manchester, Manchester, UKM13 9PL.
We report the syntheses, structures and magnetic properties of two decametallic Ni(II) clusters with unprecedented supertetrahedral cores, stabilised by the (hitherto unobserved) micro(6)-coordination modes of the tris-alkoxides [MeC(CH(2)O)(3)](3-) and [C(6)H(9)O(3)](3-).
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