SYNTHESIS AND COMPLEXATION OF A NOVEL SOLUBLE VIC-DIOXIME

Abstract

A new soluble vic-dioxime, l,4-bis(2-methoxyethyl-2, 3-bis(hydroxyimino)-5, 6-diphenylpiper-azine (LH₂) has been synthesized as a mixture of isomers from dicyan di-N-oxide and 1, 2-diphe-nyl-l,2-bis(2′-methoxyethylamino)ethane, 1, which has been prepared through the reduction of the condensation product of benzaldehyde and 2-methoxyethylamine with the aluminium amalgam. LH₂ gives N,N-coordinated planar metal complexes with Co^II, Ni^II, Cu^II and Pd^II Oxidation of (LH)₂Co in the presence of a base such as py or triphenylphoshine leads to octahedral complexes (LH)₂Co(B)Cl. The uranyl complex of LH₂ has a 1 :1 metal-ligand ratio and a binuclear structure with μ-hydroxo bridges.