title: Cyano-bridged Mn(III)3M(III) (M(III) = Fe, Cr) complexes: synthesis, structure, and magnetic properties.
abstract: Two cyano-bridged tetranuclear complexes composed of Mn(III) salen (salen = N,N'-ethylene bis(salicylideneiminate)) and hexacyanometalate(III) (M = Fe, Cr) in a stoichiometry of 3:1 have been selectively synthesized using {NH2(n-C12H25)2}3[M(III)(CN)6] (M(III) = Fe, Cr) starting materials: [{Mn(salen)(EtOH)}3{M(CN)6}] (M = Fe, 1; Cr, 2). Compounds 1 and 2 are isostructural with a T-shaped structure, in which [M(CN)6]3- assumes a meridional-tridentate building block to bind three [Mn(salen)(EtOH)]+ units. The strong frequency dependence and observation of hysteresis on the field dependence of the magnetization indicate that 1 is a single-molecule magnet.
authors.affiliation: Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan. miyasaka@comp.metro-u.ac.jp
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Miyasaka
authors.forename: Hitomi
authors.initials: H
authors.lastname: Takahashi
authors.forename: Tomokura
authors.initials: T
authors.lastname: Madanbashi
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Sugiura
authors.forename: Rodolphe
authors.initials: R
authors.lastname: Clérac
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nojiri