Research Paper in An Oxovanadium(IV)-bis(abietate) Complex with Eco-Friendly Synthesis and Antimicrobial Activity

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Title: An Oxovanadium(IV)-bis(abietate) Complex with Eco-Friendly Synthesis and Antimicrobial Activity

Abstract: One of the challenges for research and development is constantly the search for less expensive and viable products. Commonly, expensive ligands are used in the synthesis of coordination compounds, which also frequently results in expensive, low-yield processes that leave behind toxic and useless residues. The organic ligand used in this study is derived from the resin of the Pinus elliottii var. elliottii, a tree used for reforestation. Pinus resin and an 80 °C aqueous solution of vanadium(III) chloride were used in the synthesis process. The process doesn’t use organic solvents and doesn’t leave behind any harmful byproducts, giving the complex formation reaction a “green chemistry” feel. By using mass spectrometry (MS), chemical analysis (CHN), vibrational (FTIR) and electronic spectra (VISIBLE), X-ray diffraction (XRD), and thermal analysis (TG/DTA), the synthesis produced an unheard-of oxovanadium(IV)-bis(abietate) complex. The CIELAB color space was used for the colorimetric studies. The discovered structural formula was a complex made up of two abietate ligands, [VO(C20H29O2)2]. When used against microorganisms, the VO(IV)-bis(abietate) complex demonstrated positive outcomes in terms of antibacterial and antifungal activity. With minimum inhibitory concentrations (MIC) of 62.5 mol L-1 and 125 mol L-1, respectively, against the strains of Gram-positive bacteria S. aureus and L. monocytogenes, inhibitory action performed best. 500 mol L1 for E. coli and 1000 mol L1 for Salmonella enterica Typhimurium were the results for Gram-negative strains. Candida albicans was subjected to antifungal activity, with MIC values of 15.62 mol L1 for Candida albicans and 62.5 mol L1 for Candida tropicalis. As there was no fungal growth on the tested plates, the MFC analysis determined that the complex also displayed a fungicidal action in addition to its fungistatic effects. The tests’ findings show that the VO(IV)-bis(abietate) complex has a lot of potential as an antimicrobial agent, primarily against fungi. By employing pigmented ink with antimicrobial activity in environments where there is a risk of contamination, harmful microorganisms could be stopped from spreading.

Keywords: green chemistry; abietate; vanadium complex; pigment; antifungal; antibacterial

Paper Quality: SCOPUS / Web of Science Level Research Paper

Subject: Chemistry

Writer Experience: 20+ Years

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