Синтез і властивості гетерометалевих координаційних сполук деяких 3d-металів з N,N'-біс(саліциліден)семи-, тіосемикарбазидом

Abstract

The thesis is devoted to the synthesis of heterometal coordination compounds of some 3d-metals (Cu2+, Ni2+, Cо2+, Cd2+) with N,N-bis(salicylidene)semi-, thiosemicarbazide, establishing their composition, structure and electroconductive properties as potential semiconductor materials. It has been investigated an influence of metal cations and conditions of matrix synthesis on the composition of heterometal coordination compounds of 3d-metals (Cu2+, Ni2+, Cо2+, Cd2+) with N,N-bis(salicylidene)semi-, thiosemicarbazide and shown that coordination compounds of general formula М1[М2L'1, 2]2 · хН2О have been obtained with stoichiometric ratio М1 : М2 : L'1 : М3Cl3 = 1 : 1 : 1 : 1 in two stages and coordination compounds of general formula М1[М2(L'1) · М3Cl3] – with a ratio М1 : М2 : L'1 : М3Cl3 = 1 : 1 : 1 : 1 in three stages, the first and second of which are the classical method of matrix synthesis of coordination compounds, and the third is the acid-base interaction of the «hard» Lewis acid М3Cl3 with the «hard» base М1[М2L'1] within of the HSAB theory. It has been established that the «assembly» of the final ligand – L'1, 2 passes on the matrix of the metal cation. It have been developed methods of matrix synthesis of 23 coordination compounds of Copper(II), Nickel(II), Cobalt(II) and Cadmium(II) with N,N-bis(salicylidene)semi-, thiosemicarbazide of three types, 17 of which are new. Their composition and structure have been established by modern physico-chemical methods. It has been investigated the electroconductive properties of the synthesized compounds and shown that they can be used as new nanomaterials in electronics and initial materials for the obtaining of double perovskite oxides.