A promising new Schiff base-like ligand for the synthesis of octahedral iron(II) Spin crossover complexes

Abstract

Abstract A new tetradentate Schiff base-like ligand H2L (1) ((E,E)-dimethyl-2,2'-[1,2-phenylenebis(amino-methylidyne)]bis[3-oxobutanoate]) was synthesised and structurally characterised. Its reaction with iron(II) acetate leads to the formation of the octahedral N2O 4-coordinated complex [FeL(MeOH)2] (2). The complex is a pure high-spin (HS) compound as is evident from magnetic measurements and X-ray crystallography. © 2010 Verlag der Zeitschrift für Naturforschung.