ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

V-subtituted lindqvist-type polyoxometalates: preparation, structural characterization and antibacterial activity

Hülya Avcı Özbek

Department of Chemistry, Faculty of Sciences & Liberal Arts, Manisa Celal Bayar University, Manisa, Turkey

E-mail: hulya.avci@cbu.edu.tr

Received: 25 March 2023  Accepted: 5 June 2023

Abstract:

A series of six V-substituted Lindqvist type polyoxometalate [M₂V₄O₁₉]⁴⁻ (M = Mo, W) have been successfully prepared in good yields. Their structures were identified using elemental analysis, FT-IR, ¹H NMR, ³¹P NMR, ICP-MS, and TGA. The antibacterial activity of these new series of V-substituted Lindqvist type polyoxometalates were carried out by disc diffusion method with gram-positive Staphylcoccus aureus ATCC 25923 and gram-negative Escherichia coli ATCC 25922 bacteria and some of the tested polyoxometalates have shown greater antibacterial activity than Ofloxacin (standard antibiotic). Moreover the MIC values of [Ph₄P]₄[W₂V₄O₁₉] (1b) and [Ph₄P]₄[Mo₂V₄O₁₉] (2b), against Staphylcoccus aureus bacterial strain are 1.22 and 9.76 μg/ml respectively.

Keywords: Antimicrobial activity; Molybdenum; Polyoxometalate; Tungsten; Vanadium

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-023-02918-w

Chemical Papers 77 (10) 5663–5669 (2023)