Synthesis, structural study, magnetic susceptibility and antimicrobial activity of the first (μ-oxo)-bis(oxalato)-vanadium(IV) 1D coordination polymer.

Abstract Catena -poly[bis(guanidinium) (μ-oxo)-bis(oxalato)-vanadium(IV)], 1 , a new 1D polymeric V(IV) salt has been synthesized by slow evaporation at room temperature and its structure has been elucidated by single-crystal X-ray diffraction, while bis [4-(dimethylamino)-pyridinium] aquabis (oxalato)oxidovanadate(IV) dihydrate's structure, 2 , has been previously reported. In addition to elemental analysis, single crystal X-ray diffraction and structural data report of 1 , both compounds 1 and 2 have been characterized by, FT-IR and UV–Vis spectroscopy, Rietveld refinement, TG–DSC analysis. Magnetic susceptibility of the compounds had been investigated and discussed in the context of their structures. The stability, availability and ease of synthesis of those compounds are an advantage for their antimicrobial activity investigation against different Gram-positive and Gram-negative bacteria, yeast and fungi microorganisms. Further investigations on the compounds' lysozyme activity and spore germination inhibition aim to go deeper in their mechanism of actions. Graphical abstract Image 1 Highlights • Compound 1 , the first (μ-oxo)-bis(oxalato)-vanadium(IV) 1D coordination polymer exhibits antiferromagnetic behavior. • Both compounds prove significant antibacterial activities against Gram-negative bacteria Escherchia coli. • Both compounds show high lysozyme activities against Gram-positive bacteria Staphylococcus aureus and Streptococcus agalactiae. • Both compounds prove eminent fungal spore germination inhibition of the two fungi Aspergillus niger and Penicillium spp. [ABSTRACT FROM AUTHOR]