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Reflux of imidazole-2-carboxaldehyde, 1-methylimidazole-2-carboxaldehyde, imidazole4-carboxaldehyde, or 5-bromopyridine-2-carboxaldehyde with 2-aminothiophenol in ethanol in the presence of air oxygen for 1.5 h affords the corresponding 2-hetaryl-substituted 1,3-benzothiazoles. The reaction of 2-(1-methyl-1H-imidazol-2-yl)-1,3-benzothiazole with Cu(ClO4)2•6H2O gives bis[2-(1-methyl-1H-imidazol-2-yl)-1,3-benzothiazole]copper(ii) diperchlorate monohydrate.

A reaction of potassium ({(4Z)-4-[(1-methyl-1H-imidazol-2-yl)methylene]-5-oxo-1-phenyl-4,5-dihydro-1H-imidazol-2-yl}thio)acetate with copper(II) chloride in methanol leads to bis(5-anilino-7-methoxycarbonyl-1-methyl-1H-imidazo[1,2-c]pyrimidin-4-ium) tetrachloro-cuprate(II), whose structure was confirmed by the X-ray diffraction studies.

A contact angle test was applied to determine of energy characteristics of the surfaces of polyolefin ketones at various interfacial boundaries and the work of adhesion of polyolefin ketones was calculated in relation to model liquids of various polarities. A new approach was proposed to optimize the selection of polymers for composite materials. It was demonstrated that the contact angle test is a promising express method of forecasting possible branches of applications for polymer materials.

The energy characteristics of surfaces of new polymers belonging to the class of poly(olefin ketone)s at the interfaces with air and polar (water) and nonpolar (octane) liquids were determined by the ?ontact angle method. The objects of the study were binary copolymer (propyl-ene—carbon monoxide, PCO) and ternary copolymers (propylene—carbon monoxide—ethyl-ene—carbon monoxide, PECO; but-1-ene—carbon monoxide—ethylene—carbon monoxide, BECO). It was shown that the ternary copolymers can be recommended for further medicobio-logical tests as a base for the development of hemocompatible materials. The equilibrium values of the interfacial energy of poly(olefin ketone)s at the interfaces with water and octane make it possible to predict their adhesion properties for designing composite materials.

A method for the synthesis of new tetradentate organic ligand of the N2S2 type, viz., N,N’-bis-(2-mercaptophenyl)propane-1,3-diamine has been developed, starting from 2-( tert-butyl-thio)aniline and malonyl dichloride. Coordination compound of this ligand with NiII according to the X-ray diffraction data has a square-planar geometry of the metal ion coordination sphere.

Using the method of cyclic voltammetry the possibility of formation of the Pd(II) complex with triarylphosphine ligand on the gold electrode surface is shown resulting from the following sequence of reactions: (1) formation of the self-organized monolayer (SOM) of di(11-mercaptoundecyl)disulfide on the Au surface; (2) esterification of terminal hydroxy groups of the formed SOM with diphenyl(p-carboxyphenyl) phosphine; (3) formation of the complex compound fixed on the surface by treatment of the modified electrode with solution of PdCl2 in CH3CN. The possibility of electrocatalytic reduction of iodobenzene on the gold electrode with participation of the obtained Pd(II) complex is demonstrated.

Cu(ClO4)2·6H2O was shown to react with 2,2′-[propane-1,3-diylbis(thio-2-phenylnemethylidene]-bis(3-pyridylamine) (I) or (5Z)-2-ethoxycarbonylmethyl-(2-pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-one (II) in the presence of CH3CN with the reduction of copper(II) to copper(I) and the formation of the tetrahedral complex CuI(CH3CN)4ClO4 (III). In the course of the reaction the organic ligands I and II were oxidized to the corresponding sulfoxides.

Self-organized monolayers (SOMs) of 2-thiohydantoins on gold modified with lipoic acid esters were studied using contact angle measurements. The feasibility of complexing SOMs with cobalt(II) ions was demonstrated. Optimal parameters were determined for generating surface metal complexes on gold.

A series of the M(L)Cl2 · nH2O and {M(L)}2(OAc)4 complexes (M = NiII, CoII, and CuII; L is 3- and 4-(2-pyridyl)-1,3-benzothiazole) were synthesized by the reaction of L with MX2 · nH2O (X = Cl, OAc) in ethanol. The molecular and crystal structures of the CuL2(OAc)4 binuclear complex (L is 4-(2-pyridyl)benzothiazole) were determined by X-ray diffraction analysis. The copper atoms have a distorted tetragonal bipyramidal environment and are coordinated to the nitrogen atom of the pyridine moiety of the ligand and to two oxygen atoms of the bridging acetate ligands. The Cu-Cu distance is 2.6129(9) A. The electrochemical behavior of the synthesized ligands and complexes was studied using the cyclic voltammetry and rotating disk electrode techniques in DMF solutions (0.1 M Bu4NClO4). The primary reduction of all the complexes under study is directed to the metal.