Synthesis and Characterization of Iron(II) Complexes with 2-Furancarbaldehyde Oxime and 2-Thiophenealdehyde Oxime

Abstract

Iron(II) complexes with 2-furancarbaldehyde oxime and 2-thiophenealdehyde oxime (abbreviated as fox and fox, respectively) have been studied. The complexes of the types FeX₂(fox). and FeX₂(tox)₄ have been isolated, X being Cl and Br. Mainly on the basis of electronic absorption spectra and magnetic properties, it is presumed that they have a six-coordinate trans-dihalogeno-structure, in which the ligands fox and tox are unidentate ligands with the nitrogen atom of the oxime group bound with the iron(I1) ion, the oxygen in fox or the sulfur atom in tox not being involved in coordination with the metal ion.