Search Results - "Dushina, S. V."

Stability of H-complexes of nicotinamide nitrogen heteroatom with water and ethanol in mixed solvents by 13C NMR probing by Sharnin, V. A., Aleksandriysky, V. V., Dushina, S. V., Gamov, G. A.

“…The formation constants of the nicotinamide H‐complexes with protonic solvents such as water and ethanol in aqueous dimethyl sulfoxide and aqueous ethanol were…”
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Thermodynamics of nickel(II) and iron(III) complexation with nicotinamide in aqueous ethanol and aqueous dimethyl sulfoxide by Sharnin, V.A., Dushina, S.V., Grazhdan, K.V., Gamov, G.A.

“…[Display omitted] •The enthalpy changes of Ni2+ and Fe3+ with nicotinamide in aqueous organic solvents are determined.•The reagents with dominant contribution…”
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Synthesis and thermal analysis of a Ni(II) complex of nicotinamide by Gamov, G. A., Zavalishin, M. N., Dushina, S. V., Sharnin, V. A.

“…Nickel(II) bisnicotinamide sulfate was synthesized, isolated, and studied by means of FTIR spectroscopy, thermogravimetry, and differential scanning…”
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Stability of copper(II) complexes with nicotinate ion in water solutions of ethanol and dimethyl sulfoxide by Kuranova, N. N., Gushchina, A. S., Grazhdan, K. V., Dushina, S. V., Sharnin, V. A.

“…The stability constants of copper(II) complexes with nicotinate ion in water–ethanol and water–dimethyl sulfoxide mixtures are determined potentiometrically at…”
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Solvation State of Nicotinamide in Binary Solvents by 13C NMR Probing at Different Temperatures by Aleksandriiskii, V. V., Gamov, G. A., Dushina, S. V., Sharnin, V. A., Zavalishin, M. N.

“…Solvation state of pyridine-3-carboxamide (nicotinamide) was studied by means of different temperature nuclear magnetic resonance spectroscopy at different…”
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Effect of ionic strength on the thermodynamic characteristics of complexation between Fe(III) ion and nicotinamide in water-ethanol and water-dimethyl sulfoxide mixtures by Gamov, G. A., Grazhdan, K. V., Gavrilova, M. A., Dushina, S. V., Sharnin, V. A., Baranski, A.

“…Solutions of iron(III) perchlorate in water, water-ethanol, and water-dimethyl sulfoxide solvents ( = 0.7 and 0.25 mole fractions) at ionic strength values I =…”
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Complexation of nicotinamide with Ag+ ions in water-organic solvents by Zevakin, M. A., Grazhdan, K. V., Sharnin, V. A., Dushina, S. V.

“…The effect of the water-ethanol and water-DMSO solvent composition on the stability of nicotinamide (NicNH2) complexes with Ag+ ions at an ionic strength of…”
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Association and Solvation of Silver Nitrate and Perchlorate in Aqueous Ethanol by Gamov, G. A., Zavalishin, M. N., Novikov, I. V., Dushina, S. V., Sharnin, V. A.

“…The molar conductivities of silver nitrate and perchlorate solutions in aqueous ethanol ( X EtOH  = 0.5–0.9 and X EtOH  = 0.9, respectively) were measured…”
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Stability constants of nickel(II)-nicotinamide complexes in aqueous-ethanol solutions by Gamov, G. A., Dushina, S. V., Sharnin, V. A.

“…The change in stability of 1: 1 and 1: 2 nicotinamide nickel(II) complexes in an aqueous ethanol with ethanol contents of 0 to 0.85 molar fractions is studied…”
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Effect of water—ethanol solvent on the stability of copper(ii) coordination compound with the nicotinate ion by Grazhdan, K. V., Gushchina, A. S., Dushina, S. V., Sharnin, V. A., Kuranova, N. N., Ekimovskaya, A. A.

“…The stability constants of copper(II) complexes with nicotinate ion in water—ethanol solvent were determined by the potentiometric method at 25.0±0.1 °C and…”
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Stability of H-complexes of nicotinamide nitrogen heteroatom with water and ethanol in mixed solvents by super(13)C NMR probing by Sharnin, V A, Aleksandriysky, V V, Dushina, S V, Gamov, G A

“…The formation constants of the nicotinamide H-complexes with protonic solvents such as water and ethanol in aqueous dimethyl sulfoxide and aqueous ethanol were…”
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Stability of H‐complexes of nicotinamide nitrogen heteroatom with water and ethanol in mixed solvents by 13 C NMR probing by Sharnin, V. A., Aleksandriysky, V. V., Dushina, S. V., Gamov, G. A.

“…The formation constants of the nicotinamide H‐complexes with protonic solvents such as water and ethanol in aqueous dimethyl sulfoxide and aqueous ethanol were…”
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Coefficients of interphase distribution and Gibbs energy of the transfer of nicotinic acid from water into aqueous solutions of ethanol and dimethylsulfoxide by Grazhdan, K. V., Gamov, G. A., Dushina, S. V., Sharnin, V. A.

“…Coefficients of the interphase distribution of nicotinic acid are determined in aqueous solution systems of ethanol-hexane and DMSO-hexane at 25.0 ± 0.1°C…”
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Solvation peculiarities of nicotinamide in aqueous ethanol by Gamov, G. A., Dushina, S. V., Aleksandriiskii, V. V., Sharnin, V. A., Koifman, O. I.

“…The solvation state of biologically active provitamin PP, viz. , 3-pyridinecarboxamide, was studied in a water-ethanol solvent by 1 H and 13 C NMR and IR…”
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Enthalpies of Iron(III) perchlorate and Fe3+ ion transfer from water into aqueous ethanol solvents by Grazhdan, K. B., Dushina, S. V., Sharnin, V. A., Ekimovskaya, A. A., Aralkina, N. V.

“…Thermal effects of the transfer of iron(III) perchlorate from water into aqueous ethanol solutions at 25.00 ± 0.01°C are determined calorimetrically. The…”
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Thermodynamics of protolytic equilibrium of nicotinic acid in water-ethanol solutions by Kuranova, N. N., Dushina, S. V., Sharnin, V. A.

“…The enthalpies of stepwise protonation of nicotinate ion (L − ) in water-ethanol solvents were determined calorimetrically at 298.15 K. It was found that the…”
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Nicotinamide solvation state in aqueous dimethyl sulfoxide by Gamov, G. A., Dushina, S. V., Aleksandriiskii, V. V., Sharnin, V. A., Koifmana, O. I.

“…The solvation state of biologically active compound vitamin B 3 , viz. , 3-pyridinecarboxamide, in an aqueous-dimethyl sulfoxide solvent of a variable…”
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Solvation of reagents in a silver(I)-nicotinamide coordination equilibrium in water-ethanol solutions, according to NMR data by Gamov, G. A., Dushina, S. V., Aleksandriiskii, V. V., Sharnin, V. A.

“…The solvation state of nicotinamide in water-ethanol solvent is investigated by means of 1 H and 13 C NMR spectroscopy. It is found that the nitrogen…”
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Solvent effect of aqueous ethanol on complex formation and protolytic equilibria in nicotinic acid solutions by Kuranova, N. N., Dushina, S. V., Sharnin, V. A.

“…The protonation constants of nicotinate ion and the stability constants of iron(III) nicotinate complexes in aqueous ethanol were studied potentiometrically…”
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The thermochemical characteristics of nicotinamide coordination by iron(III) and ligand protonation in aqueous-ethanolic mixtures by Grazhdan, K. V., Dushina, S. V., Sharnin, V. A.

“…The heat effects of protonation of nicotinamide and formation of its complex with iron(III) were determined calorimetrically at 25.00 ± 0.01°C and ionic…”
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