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Synthesis, structure, and antimicrobial activity of complexes of bivalent metals with 1-naphthylacetic acid
Abstract
1-Naphthylacetic acid (C10H7-CH2COOH; HL) is a synthetic commercial plant hormone widely used in agriculture as a plant growth regulator. Five complexes between metal and this hormone were synthesized and structurally characterized: [MnL2(H2O)2] (A), [CoL2(H2O)2] (B), [NiL2] (C), [CuL2(H2O)2] (D), and [ZnL2] × H2O (E). Next, IR, 1H NMR, UV-Vis, thermogravimetry, magnetic moment, and elemental analyses were used to characterize the complexes, and their morphological properties were assessed using XRD and SEM techniques. These analyses indicated that two L– molecules were coordinated to the metal ion by their bidentate carboxylate groups. Finally, the complexes were screened in vitro against several microbes (bacteria and fungi) using the Kirby–Bauer disc diffusion method. Complex C showed antifungal activity against Candida albicans with a potency that was 15% higher than the antifungal drug amphotericin B.
About the Author
L. A. Albedair
Department of Chemistry, College of Science at Princess Nourah Bint Abdulrahman University
Saudi Arabia
Saudi Arabia
Riyadh 11671
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For citations:
Albedair L.A. Synthesis, structure, and antimicrobial activity of complexes of bivalent metals with 1-naphthylacetic acid. Zhurnal Prikladnoii Spektroskopii. 2021;88(6):973. (In Russ.)
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