The effect of reagents solvation on change in the stability of coordination compounds of silver(I) ion with pyridine in mixed methanol–acetonitrile solvents

Kuz’mina, I. A.; Kovanova, Mariia A.

doi:10.1016/j.molliq.2021.118112

Journal of Molecular Liquids

2022

DOI: 10.1016/j.molliq.2021.118112

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The effect of reagents solvation on change in the stability of coordination compounds of silver(I) ion with pyridine in mixed methanol–acetonitrile solvents

I. A. Kuz’mina

Mariia A. Kovanova

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2025

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Cited by 5 publications

References 40 publications

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Thermodynamics of complex formation of silver(I) with substituted pyridines and cyclic amines in non-aqueous solvents

Sanadar,

Kovačević,

Cracchiolo

et al. 2024

J Therm Anal Calorim

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The understanding of the thermodynamic stability and speciation of metal complexes in solution requires access to their enthalpy and entropy of formation. In this work, we specifically focus our investigation on the complexation process of silver(I) ion in acetonitrile (AN) with substituted mono pyridines and cyclic monoamines. The aim of this study is to provide reliable thermodynamic data to obtain insights on metal complex formation, focusing on ligands donor properties and solvation effects. Carefully designed potentiometric and calorimetric experiments allowed to define the species present at different ligand/metal ratios and to obtain the complex formation constants and enthalpies. In general, the enthalpy terms associated with the complex formation are highly exothermic, while the entropy values are always unfavorable. The formation constants of AgLj species for the ligands investigated in AN are compared with those previously obtained in dimethyl sulfoxide (DMSO) and water. The trends in stability constants and enthalpy values are discussed in relation to the pKa data available in the different solvents. Higher pKa values correspond to greater ligand basicity and result in more stable and more enthalpy stabilized complexes.

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Thermodynamics of complex formation of silver(I) with substituted pyridines and cyclic amines in non-aqueous solvents

Sanadar,

Kovačević,

Cracchiolo

et al. 2024

J Therm Anal Calorim

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Diphenyl selenoxide: Unraveled peculiarities in methanol and acetonitrile solutions

Chaban,

Markarian,

Ghazoyan

et al. 2024

Journal of Molecular Liquids

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Predictive calculation of the stability constants of silver(I) ion with pyridine and 2,2′-bipyridyl in a solvent environment

Kuz’mina,

Kovanova,

Nikiforova (Perova)

2025

Polyhedron

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The effect of reagents solvation on change in the stability of coordination compounds of silver(I) ion with pyridine in mixed methanol–acetonitrile solvents

Cited by 5 publications

References 40 publications

Thermodynamics of complex formation of silver(I) with substituted pyridines and cyclic amines in non-aqueous solvents

Thermodynamics of complex formation of silver(I) with substituted pyridines and cyclic amines in non-aqueous solvents

Diphenyl selenoxide: Unraveled peculiarities in methanol and acetonitrile solutions

Predictive calculation of the stability constants of silver(I) ion with pyridine and 2,2′-bipyridyl in a solvent environment

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