Kompleksi Cu(II) i Mo(VI) s odabranim (tio)karbonohidrazidima

The aim of this research was the preparation and structural characterization of heteronuclear molybdenum(VI) and copper(II) complexes with symmetrical disubstituted (thio)carbohydrazides derived from 2-hydroxybenzaldehyde or 2-hydroxy-3-methoxybenzaldehyde. Furthermore, mono-, di- and polynuclear complexes of molybdenum(VI) and mono- and dinuclear complexes of copper(II) were prepared. Complexes were synthesized from solutions (methanol, acetonitrile, and acetone), while some complexes were also prepared mechanochemically. All compounds were identified by the infrared spectroscopy, nuclear magnetic resonance, thermogravimetric analysis, differential scanning calorimetry, and powder X-Ray diffraction. Molecular structures of complexes [MoO2(H2T3OMe)]2, [MoO2(H2T)]n, [MoO2(H2T)(MeOH)] and ligand 1,5-bis(2-hydroxybenzaldehyde)thiocarbohydrazone (H4T) were determined by nuclear magnetic resonance spectroscopy. Recrystallization of the synthesized mononuclear complex [MoO2(H2T)(MeOH)] in ethanol resulted in the formation of single-crystal whose molecular and crystal structure was determined by the single-crystal X-ray diffraction