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Synthesis, crystal structure and magnetic behaviourof a mononuclear Fe(III) — Schiff base metal complex

Abstract A complex from Fe(II) and a hexa-dentate linear ligand containing O2N4 donor atoms were prepared and the structure enlightened with X-ray diffraction. The Fe(II) ion in the complex was seen to be oxidized to form a Fe(III) complex, [C20H24Cl3N4O2]Fe and the three chloride ions were situated at a distance of Fe…Cl(1) 3.976(5), Fe…Cl(2) 4.479(3) and Fe…Cl(3) 7.509(4) Å outside the coordination sphere. The Fe(III) ion has an octahedral coordination sphere and as expected the two oxygen donor atoms are coordinated in a -cis position. The Fe—O, Fe—Nimin and Fe—Namine distances are 1.880(3) Å, 1.931(4) Å and 2.004(4) Å, respectively.