Synthesis, structure and magnetic behavior of new 1D metal–organic coordination polymer with Fe3O core

New metal–organic coordination polymer, (Me3NH)[Fe3(μ3-O)(μ-HCOO)8]·DMF (1), was synthesized by heating of Fe(NO3)3·9H2O and [NH(CH3)3]Cl in DMF/HCOOH solution. The single-crystal X-ray structure analysis reveals this compound has 1D anionic framework structure built from Fe3O(μ-HCOO)6 cluster units linked by formate bridges. Compound 1 was characterized by elemental analysis, IR and TGA. The magnetic susceptibility measurements indicate a strong antiferromagnetic exchange interaction between FeIII ions in the cluster and intercluster magnetic interaction.

The title compound has 1D anionic framework structure built from trinuclear cluster Fe3O(μ-HCOO)6 units linked by the small formate bridges. The magnetic susceptibility measurements indicate a strong antiferromagnetic exchange interaction between FeIII ions in the cluster and intercluster magnetic interaction.Figure optionsDownload as PowerPoint slideResearch highlights
► Fe3O units are promising paramagnetic centers in the development of coordination polymer with formate as bridging ligand.