title: Synthesis and characterization of an asymmetric, linear, trinuclear manganese(II) complex.
abstract: After prolonged heating in acetonitrile, a highly asymmetric, trinuclear manganous complex self-assembles from MnCl(2) and bis(2-pyridylmethyl)-1,2-ethanediamine (bispicen). The central Mn(II) ion is bridged to the terminal metal ions in the molecule by single chloride anions. The organic ligands each bind to a single Mn(II) ion. The central Mn(II) and only one of the terminal Mn(II) ions are six-coordinate and bound to bispicen ligands. The remaining terminal Mn(II) ion is coordinated by a tetrahedral array of chloride anions, endowing the trinuclear cluster with a high degree of asymmetry. Variable temperature magnetic measurements are consistent with an S = 5/2 system, indicating net antiferromagnetic coupling.
authors.affiliation: Department of Chemistry & Biochemistry, Auburn University, Auburn, Alabama 36849, USA.
authors.forename: Cristina M
authors.initials: CM
authors.lastname: Coates
authors.forename: Stephanie R
authors.initials: SR
authors.lastname: Fiedler
authors.forename: T Laura
authors.initials: TL
authors.lastname: McCullough
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Albrecht-Schmitt
authors.forename: Matthew P
authors.initials: MP
authors.lastname: Shores
authors.forename: Christian R
authors.initials: CR
authors.lastname: Goldsmith