Search Results - "Grazhdan, K. V."

Protolytic Equilibrium of Glycine and Glycylglycine: Structure of Ionic Forms and Solvent Effect on the Thermodynamic Parameters of Processes by Isaeva, V. A., Gamov, G. A., Grazhdan, K. V.

“…Quantum-chemical calculations of the structure of the molecular forms of glycine and glycylglycine and conjugate ionic forms have been performed. Our own and…”
Get full text

Thermodynamics of Complexation Reactions between d-Metal Ions and Glycine and Glycylglycine Anions in Water–Organic Solvents by Isaeva, V. A., Sharnin, V. A., Grazhdan, K. V., Kipyatkov, K. A.

“…Original and literature data on the thermodynamic characteristics of the formation of complex compounds of d -metal ions with glycinate and glycylglycinate…”
Get full text

Protolytic Equilibrium Constants in Aqueous Solutions of Pyridoxal-5'-Phosphate Hydrazone and L-Tyrosine by Rozanov, E. S., Grazhdan, K. V., Kiselev, A. N., Gamov, G. A.

“…Protolytic equilibrium constants in an aqueous solution of pyridoxal-5'-phosphate hydrazone and L-tyrosine are determined spectrophotometrically at 25.0 ±…”
Get full text

Protolytic Equilibrium Constants of Nicotinic Acid Solutions in Water–Dimethylsulfoxide Mixtures by Kuranova, N. N., Chesnokova, N. A., Gushchina, A. S., Grazhdan, K. V., Sharnin, V. A.

“…Potentiometric titration and spectrophotometry are used to determine the stepwise protonation constants of nicotinate ions at 298.2 K and the ionic strength of…”
Get full text

Effect of Mixed Water–Acetone Solvent on the Stability of Copper(II) Glycylglycinate Complexes by Isaeva, V. A., Molchanov, A. S., Kipyatkov, K. A., Grazhdan, K. V., Rothanov, E. S.

“…Potentiometric titration at a temperature of 298 K and ionic strength of solutions of 0.1 (NaClO 4 ) is used to determine the stability constants of normal and…”
Get full text

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…”
Get full text

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…”
Get full text

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 =…”
Get full text

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…”
Get full text

Protolytic and tautomeric equilibria of pyridoxine in aqueous ethanol by Gamov, G.A., Khokhlova, A.Yu, Gushchina, A.S., Grazhdan, K.V., Sharnin, V.A.

“…Pyridoxine transport from aqueous ethanol (XEtOH=0.1) through model membrane into aqueous medium of cell. [Display omitted] •Pyridoxine protonation and…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

Thermochemical characteristics of nicotinamide protolytic equilibria in water-dimethylsulfoxide mixtures by Grazhdan, K. V., Gamov, G. A., Dushina, S. V., Sharnin, V. A.

“…The heat effects of nicotinamide protonation in water-dimethylsulfoxide (DMSO) solutions over the concentration range 0–0.75 DMSO mole fractions were…”
Get full text

Complexation between iron(III) and nicotinamide in aqueous dimethyl sulfoxide by Grazhdan, K. V., Gamov, G. A., Dushina, S. V., Sharnin, V. A.

“…The stability constants of iron(III) complexes with nicotinamide in water-DMSO mixtures ( X DMSO = 0–0.75) were determined by potentiometric titration at 25.0…”
Get full text

The gibbs energies of transfer of nicotinamide from water to water-ethanol mixtures and formation of the nicotinamide-silver(I) complex by Zevakin, M. A., Grazhdan, K. V., Dushina, S. V., Sharnin, V. A.

Get full text