The Synthesis of new macrocylic compounds and investigation of their ion sellective effects

The Synthesis of New Macrocyclic Compounds and Investigation of Their Ion Sellective Effects. A novel (E,E)-dioxime which contains crown ether groups has been synthesized from the reaction of 4'-aminobenzo(15-crown-5) and sustituted diaminoglyoxime which has been prepared from methylantranilate and (E,E)-dichloroglyoxime. The cobalt (III) complex of (E,E)-dioxime has been obtained with pyrdine, together with chlorine ions as axial ligands. The cobalt (III) complex of + BF2 bridged is achived with the cobalt (III) complex of (E,E)- dioxime and borontrif loride ethyl ether complex. In adition to that, by used UV-VIS spectrophotometer the ion extraction capability of the cobalt (III) complex of BF2 bridged towards lithium, sodium, potasium picrate from aqueous solition to dichloromethane has been measured. The ion extraction capability of the dioxime compound towards potasium picrate from aqueous solition to dichloromethane has been found 83%. The structure of dioximes, dioxime macrocycle and their 1 13 complexes are proposed according to elemental analaysis H and C- NMR, IR, and Mass spectral data. Key Words: Crown ether, Macrocyclic Complex, Ligand, Extraction. VI