title: Hexa- and octanuclear iron(III) salicylaldoxime clusters.
abstract: The syntheses, structures and magnetic properties of six iron complexes stabilised with the derivatised salicylaldoxime ligands Me-saoH(2) (2-hydroxyethanone oxime) and Et-saoH(2) (2-hydroxypropiophenone oxime) are discussed. The four hexanuclear and two octanuclear complexes of formulae [Fe(8)O(2)(OMe)(4)(Me-sao)(6)Br(4)(py)(4)]·2Et(2)O·MeOH (1·2Et(2)O·MeOH), [Fe(8)O(2)(OMe)(3.85)(N(3))(4.15)(Me-sao)(6)(py)(2)] (2), [Fe(6)O(2)(O(2)CPh-4-NO(2))(4)(Me-sao)(2)(OMe)(4)Cl(2)(py)(2)] (3), [Fe(6)O(2)(O(2)CPh-4-NO(2))(4)(Et-sao)(2)(OMe)(4)Cl(2)(py)(2)]·2Et(2)O·MeOH (4·2Et(2)O·MeOH), [HNEt(3)](2)[Fe(6)O(2)(Me-sao)(4)(SO(4))(2)(OMe)(4)(MeOH)(2)] (5) and [HNEt(3)](2)[Fe(6)O(2)(Et-sao)(4)(SO(4))(2)(OMe)(4)(MeOH)(2)] (6) all are built from a series of edge-sharing [Fe(4)(μ(4)-O)](10+) tetrahedra. Complexes 1 and 2 display a new μ(4)-coordination mode of the oxime ligand and join a small group of Fe-phenolic oxime complexes with nuclearity greater than six.
authors.affiliation: School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, UK EH9 3JJ.
authors.forename: Kevin
authors.initials: K
authors.lastname: Mason
authors.forename: Ian A
authors.initials: IA
authors.lastname: Gass
authors.forename: Fraser J
authors.initials: FJ
authors.lastname: White
authors.forename: Giannis S
authors.initials: GS
authors.lastname: Papaefstathiou
authors.forename: Euan K
authors.initials: EK
authors.lastname: Brechin
authors.forename: Peter A
authors.initials: PA
authors.lastname: Tasker