Panchenko T. Synthesis and properties of heterometal coordination compounds of some 3d-metals with N,N'-bis(salicylidenе)semi-, thiosemicarbazide

It has 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 and correspond general formula: М1[М2L'1]2 • хН2О and М1[СоL'1(Н2О)2]2 • хН2О, where М2 = Cu2+, Ni2+; М1 = Ca2+, Sr2+, Ba2+; х = 0 – 5; Н3L1 = N,N-bis(salicylidene)semicarbazide; М1[М2L'2]2 • хН2О, where М2 = Cu2+, Ni2+; М1 = Ca2+, Sr2+, Ba2+; х = 1–4; Н3L2 = N,N-bis(salicylidene)thiosemicarbazide; М1[М2L'1 • М3Cl3], where М1 = К+, NН4+; М2 = Cu2+, Ni2+; М3 = Sb3+, Bі3+; Н3L1 = N,N-bis(salicylidene)semicarbazide. Composition and structure of the obtained heterometal coordination compounds have been established by elemental, X-ray phase analysis and X-ray crystallography, magnetochemistry, thermogravimetric and conductivity analysis, IR-spectroscopy. 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 in two stages and coordination compounds of general formula М1[М2(L'1) • М3Cl3] – 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 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.