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Synthesis, characterization and antifungal activity of copper (II) complexes of sterically hindered o-diphenol derivatives |
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| Authors: | N.V. Loginova, T.V. Koval&#x chuk, R.A. Zheldakova, A.A. Chernyavskaya, N.P. Osipovich, G.K. Glushonok, G.I. Polozov, V.N. Povalishev, V.L. Sorokin,O.I. Shadyro |
| Affiliation: | aDepartment of Inorganic Chemistry, Faculty of Chemistry, Belarusian State University, Leningradskaya street 14, Minsk 220050, Belarus bDepartment of Microbiology, Belarusian State University, Kurchatova street 4, Minsk 220064, Belarus cResearch Institute for Physico-Chemical, Problems of the Belarusian State University, Leningradskaya street 14, Minsk 220050, Belarus |
| Abstract: | Cu (II) complexes with 3,5-di(tert-butyl)-1,2-benzenediol (I), 4,6-di(tert-butyl)-1,2,3-benzentriol (II) and sulfur-containing sterically hindered o-diphenol derivatives such as 4,6-di(tert-butyl)-3-(2-hydroxyethylsulfanyl)-1,2-benzenediol (III) and 2-[4,6-di(tert-butyl)-2,3-dihydroxyphenylsulfanyl]acetic acid (IV) have been synthesized and characterized by means of elemental analysis, TG/DTA, FT-IR, ESR, XPS, XPD and conductivity measurements. Antifungal activities of these ligands and their respective Cu (II) complexes have been determined against Aspergillus niger, Fusarium sp., Penicillium lividum, Mucor sp. and Botrytis cinerea. Most of the compounds (both the free ligands and the complexes) exert pronounced antifungal activities (RI 70%), and virtually all of them (apart from the Cu(LII)2 complex) have the highest inhibitory properties (RI = 100%) against B. cinerea. |
| Keywords: | Copper (II) complexes Sterically hindered o-diphenols Antifungal activity Spectroscopic study |
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