X-ray Structure and Magnetic Properties of two new iron(II) 1D Coordination Polymers with Bis(imidazolyle)methane as bridging ligand

Birgit Weber (1)

1 Chemie und Biochemie

The reaction of iron(II) acetate with the tetradentate Schiff base like ligands H2L1 ((E,E)-[{diethyl 2,2´-[1,2-phenylenebis-(iminomethyl-idyne)]bis[3-oxobutanato]}]) and H2L2 ([([3,3´]-[1,2-phenylene-bis(iminomethylidyne)]bis(2,4-pentane-dionato)(2-)-N,N´,O2,O2´]) leads to the formation of the octahedral N2O4 coordinated iron complexes [FeL1(MeOH)2] and [FeL2(MeOH)2], respectively. Conversion of both with bimm (bis(1-imidazolyle)methane) leads to the 1D coordination polymers [FeL1(bimm)]•0.5(MeOH) (1) and [FeL2(bimm)] (2). Compound 1 is a pure high-spin (HS) complex, which was characterised using magnetic measurements and X-ray structure analysis. Compound 2 undergoes an irregular and incomplete thermal spin transition.

Mots clés: Physical Sciences

Birgit Weber. X-ray Structure and Magnetic Properties of two new iron(II) 1D Coordination Polymers with Bis(imidazolyle)methane as bridging ligand. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2009, 636 (1), pp.183. ⟨10.1002/zaac.200900291⟩. ⟨hal-00515813⟩