title: In situ ligand formation in the synthesis of an octanuclear dysprosium 'double cubane' cluster displaying single molecule magnet features.
abstract: The nucleophilic addition of methanol and water to the dicyanonitrosomethanide anion, resulting in the formation of cyano(imino(methoxy)methyl)nitrosomethanide (cmnm) and carbamoylcyanonitrosomethanide (ccnm), respectively, is used as a means of in situ ligand synthesis during the formation of [Dy(8)(OH)(6)(OMe)(6)(cmnm)(10)(ccnm)(2)(H(2)O)(2)(MeOH)(2)] (1). This is the first time these reactions have been observed to be promoted by the presence of a lanthanoid ion. The core of the octanuclear cluster consists of two cubane moieties ([Dy(4)(OH)(3)(OMe)]), bridged by four methoxide ligands to form a central [Dy(8)(OH)(6)(OMe)(6)] moiety. The complex displays magnetic properties that are indicative of probable single molecule magnet features.
authors.affiliation: School of Chemistry, Monash University, Clayton, VIC, Australia.
authors.forename: Anthony S R
authors.initials: AS
authors.lastname: Chesman
authors.forename: David R
authors.initials: DR
authors.lastname: Turner
authors.forename: Boujemaa
authors.initials: B
authors.lastname: Moubaraki
authors.forename: Keith S
authors.initials: KS
authors.lastname: Murray
authors.forename: Glen B
authors.initials: GB
authors.lastname: Deacon
authors.forename: Stuart R
authors.initials: SR
authors.lastname: Batten
mesh_terms: D004419:Dysprosium / Q000737:chemistry*; D008024:Ligands; D060328:Magnetic Phenomena; D059346:Magnets; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D004419:Dysprosium