Publications by authors named "G T Fedorenko"

Article Synopsis
  • A new mononuclear complex named penta-aqua-(cucurbit[6]uril-κ ,')(nitrato-κ ,')praseodymium(III) dinitrate 9.56-hydrate was synthesized through a hydro-thermal reaction between cucurbit[6]uril and praseodymium nitrate.
  • The complex crystallizes in the 2/ space group and features two identical Pr-based cations, four nitrate anions, and a significant amount of interstitial water molecules.
  • The coordinated Pr ions exhibit varying bond distances and angles, leading to distinct coordination geometries described as distorted square anti-prismatic and muffin polyhedral shapes.
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Developed areas of the coal industry are subjected to long-term anthropogenic impacts from the input and accumulation of overburdened coal material, containing potentially toxic heavy metals and metalloids (HMM). For the first time, comprehensive studies of soils and plants in the territory of the Donetsk coal basin were carried out using X-ray fluorescence, atomic absorption analysis, and electron microscopy. The observed changes in the soil redox conditions were characterized by a high sulfur content, and formations of new microphases of S-containing compounds: FeS, PbFe(SO)(OH), ZnSO·nHO, revealed the presence of technogenic salinization, increased С content, and low pH contents.

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Article Synopsis
  • The study focuses on Phragmites australis (common reed) as a potential indicator of soil pollution from heavy metals and PAHs, analyzing its ultrastructural changes due to pollution.
  • Results show that concentrations of metals and PAHs in the soils and plants increased closer to a power station and in the direction of prevailing winds, with the highest pollutant levels found in the roots of the plants.
  • Transmission electron microscopy revealed significant cellular changes in the chloroplasts, mitochondria, and peroxisomes of P. australis, particularly in areas near the pollution source, suggesting its effectiveness as a bioindicator for assessing environmental contamination.
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The current study provides an information on the combined effect of pollution with potentially toxic elements (PTEs) and polycyclic aromatic hydrocarbons (PAHs) in hydromorphic soils on the accumulation, growth, functional and morphological-anatomical changes of macrophyte plant, i.e., Phragmites australis Cav.

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The impact of inorganic pollutants in the zone of industrial wastewater settling tanks (South of Russia) was studied. The levels of Mn, Cr, Ni, Cu, Zn, Pb, Cd were determined for Verbascum thapsus L., which are part of the mesophilic succession of wild plants in the studied technogenically polluted territory.

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