Journal
MOLECULES
Volume 27, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/molecules27154809
Keywords
DFT; Co and Zn complexes; crystal structure; catalytic activity; biological activity
Funding
- University of Hail, Kingdom of Saudi Arabia [GR-22029]
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In this study, a new complex of Co(III) with ligand Pyridoxal-S-methyl-isothiosemicarbazone (PLITSC) was synthesized and its structure, stability, and activity were investigated. The obtained complexes showed significant antibacterial activity and dye removal activity, and they catalyzed the reduction of CO2 in acidic media.
New complex Co(III) with ligand Pyridoxal-S-methyl-isothiosemicarbazone, (PLITSC) was synthesized. X-ray analysis showed the bis-ligand octahedral structure of the cobalt complex [Co(PLITSC-H)(2)]BrNO3 center dot CH3OH (compound 1). The intermolecular interactions governing the crystal structure were described by the Hirsfeld surface analysis. The structure of compound 1 and the corresponding Zn complex (([Zn(PLTSC)(H2O)(2)]SO4 center dot H2O)) were optimized at the B3LYP/6-31 + G (d,p)/LanL2DZ level of theory, and the applicability was assessed by comparison with the crystallographic structure. The natural bond orbital analysis was used for the discussion on the stability of formed compounds. The antibacterial activity of obtained complexes towards S. aureus and E. coli was determined, along with the effect of compound 1 on the formation of free radical species. Activity of compound 1 towards the removal of methylene blue was also investigated. The voltammograms of these compounds showed the reduction of metal ions, as well as the catalyzed reduction of CO2 in acidic media.
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