Synthesis and Metal Complexation of Twovic-Dioxime Derivatives of Calix[4]Arenes

Abstract

Two new &-dioxime compounds of calix[4]arene and their transition metal complexes were synthesized from 28-[(4-aminobenzyl)oxy]-25,26,27-tribenzoyloxycalix[4]arene and am~hi-chloroglyoxime or amDhi-dichloroglyoxime. The complexes of these compounds with Ni(II), Cu(II) and Co(II) ions were investigated. All of the complexes of these ligands are tetrahedral with a metalligand ratio of 1:2. The prepared compounds were characterised based on IH NMRand IR spectra as well as elemental analyses.