Silver Nanoparticles Synthesized by Decomposition of a Silver Organic Complex with Valence Tautomerism and Their Properties

Harbatsevich, H. I.; Loginova, N. V.; Ковальчук, Т. В.; Osipovich, N. P.; Gres, A.T.

doi:10.1007/s10812-017-0419-1

Cited by 1 publication

(1 citation statement)

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“…AgNPs in solid-state were prepared by evaporating the solvent using a rotary evaporator RV 8 V (IKA). Measuring the mass of the dry residue, the silver concentration in the sol was found to be 88.9–90.0 μg·ml –1 [ 20 , 22 , 23 ]. The silver content in the solid phase was determined using atomic emission spectrometry and was equal to 12.1 % [ 20 , 22 , 23 ].…”

Section: Methodsmentioning

confidence: 99%

Silver(I) complexes with phenolic Schiff bases: Synthesis, anti-bacterial evaluation and interaction with biomolecules

Loginova¹,

Gvozdev²,

Osipovich³

et al. 2022

ADMET DMPK

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Novel Ag(I) complexes (2a–2c) with phenolic Schiff bases were synthesized using 4,6-di-tert-butyl-3-(((5-mercapto-1,3,4-thiadiazol-2-yl)imino)methyl)benzene-1,2-diol (1a), 4,6-di-tert-butyl-3-(((4-mercaptophenyl)imino)methyl)benzene-1,2-diol (1b), and 4,6-di-tert-butyl-3-(((3-mercaptophenyl)imino)methyl)benzene-1,2-diol (1c). They were examined by elemental analysis, FT-IR, UV-Vis, 1H-NMR spectroscopy, XRD, cyclic voltammetry, conductivity measurements, and biological methods. The complexes are characterized by distorted geometry of the coordination cores AgN2S2 (2c), AgNS (2b) and AgS2 (2a). These stable complexes were not typified by the intramolecular redox reaction in organic solvents resulting in the formation of silver nanoparticles (AgNPs). Antibacterial activity of 1a–1c and 2a–2c was evaluated in comparison with AgNPs and commonly used antibiotics. All the complexes were more active than the ligands against the bacteria tested (14), but they were less active than AgNPs and commonly used antibiotics. Both 1a–1c and their complexes 2a–2c exhibited the capability for the bovine heart Fe(III)-Cyt c reduction. The ligands 1b and 1c were characterized by the highest reduction rate among the compounds under study, and they showed a higher reducing ability (determined by cyclic voltammetry) as compared with that of their Ag(I) complexes 2b and 2c.

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