Preparation and spectroscopic characterization of iron (III)‎ complexes of a functionalized crown ether

الملخص EN

This research includes the synthesis and characterization of Schiff's bases crown ethers prepared from condensation between cis-diaminodibenzo-18-crown-6 and Benz aldehyde substituted with some groups such as 4-H, 4-CH2 (CH2) 6CH3, 4-Cl, 4-Br and 4-NO2 and their complexes with Fe (NO3) 3.9 H2O.

The study involved solubility, melting points and thermal stability, elemental analysis have been detected with spectral studies using 1H-NMR, UV-Visible and IR-spectroscopy.

They found to be solid crystalline and appear to be salt Schiff's bases crown ethers formed by Ion-dipole interaction between the action and the negatively charged oxygen atoms symmetrically placed in the crown ether ring.

The complexes were prepared with molar ratio 1 : 1 (ligand : metal salt) .they were found to have the general formula : Fe (L) (NO3) 3.9H2O.