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March 26, 2026Russian Journal of Physical Chemistry A0 citations

Complexation of Thia-Crown Ethers with Nickel(II) and Silver(I) Ions in Ethanol and Dimethyl Sulfoxide

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TUT. R. UsachevaIvanovo State University of Chemistry and TechnologyNKN. N. KuranovaIvanovo State University of Chemistry and TechnologyOKO. N. KrutovaIvanovo State University of Chemistry and Technology

Key Points

  • The research aims to understand how thia-crown ethers complex with nickel(II) and silver(I) ions.
  • Utilized spectrophotometry to analyze complex stability.
  • Applied isothermal titration calorimetry to determine thermodynamic parameters.
  • Calculated standard enthalpies of formation using group systematics.
  • Found varying stability of complexes with different thia-crown ethers.
  • Identified distinct thermodynamic parameters for silver(I) complexes in solvents.
  • Calculated enthalpies of formation that reflect the influence of nearest-neighbor atoms.

Abstract

The reactivity of thia-crown ethers M1–M3 modified by 2(5H)-furanone fragments relative to nickel(II) and silver(I) ions has been studied. The stability of the complexes was analyzed by spectrophotometry. The thermodynamic parameters of complexation of thia-crown ethers M1–M3 with silver(I) ions in ethanol (95%) and DMSO were determined by isothermal titration calorimetry. The standard enthalpies of formation of the compounds were calculated by the additive group method based on group systematics with Benson-type classification of fragments, including the influence of the nearest-neighbor atoms.

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Cite This Study

Usacheva et al. (2026) studied this question.

synapsesocial.com/papers/69c4cc37fdc3bde4489177d6https://doi.org/10.1134/s0036024425703406
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