In this paper, the purpose of synthesis of Fe(III) coordination compounds with some N(4)-substituted thiosemicarbazones of salicyl aldehyde and cinnam aldehyde derivatives was pursued: which contain as a radical in the N(4) position: tert-butyl, cyclohexyl; allyl, methyl. The structure of thiosemicarbazones HnL1-5 was confirmed by FTIR spectroscopy and TLC analysis, melting point and NMR spectra. Based on the above-mentioned ligands, 5 coordination combinations were obtained, the research of which was carried out with the help of infrared spectroscopy. All synthesized compounds are being researched for their biological properties: antimicrobial and antifungal, as well as antioxidant capacities.
