Синтез і властивості гетерометалевих координаційних сполук Купруму(ІІ), Ніколу(ІІ) або Кобальту(ІІ) і лужноземельних елементів з N,Nʹ-біс(саліциліден)семикарбазидом

Abstract

The reaction of interaction of salicyl aldehyde semikarbazone, salicylic aldehyde and salts of some 3d-transition metals has been researched and found that the coordination promotes association of ligands and the formation of macrocyclic compounds of Е[МL']2 • хН2О і Е[СоL'(Н2О)2]2 • 4Н2О. It has been found that N,N'-bis(salicyliden)se-micarbazide (Н3L') formed by reaction "on matrix" in the presence of 3d-metal ions (M2+ = Cu, Ni, Co) in aqueous-alcohol solutions E(OH)2 (E2+ = Ca, Sr, Ba). Based on the obtained physicochemical data of synthesized compounds it has been shown the probable mechanism of the final compounds formation of general formula Е[МL']2 • хН2О. Based on the temperature dependence of resistivity of the synthesized compounds it has been shown that the nature of d-element strongly influences on their electrical properties. The phase composition and electrical properties of pyrolysis products of compounds Ba[NiL']2 • 5H2O і Ba[CoL'(H2O)2]2 • 4H2O has been researched.