Physical and Coordination Chemistry of Solutions and Processes in Liquid Phase

Vadim V. Budanov

Vadim V. Budanov

Doctor of Chemical Science, Professor of the Department of Physical and Colloid Chemistry, Meritorious Scientist of the Russian Federation

Professor Budanov is the founder and head of scientific school in the area of sulphur-containing compounds chemistry and redox reaction kinetics in liquid phase. A new branch in this field “Kinetics and thermodynamics of redox processes with organic oxo-compound participation of sulfur (IV-II) in liquid media” has been created and developed by him and his coworkers. Physico-chemical bases of synthesis and application of high effective and selective reducing agents (organic and inorganic derivatives of sulphoxylic acid) and generalized kinetic models for homogeneous and heterogeneous processes, involving compounds in question, have been created. The most important physico-chemical properties of redox systems have been determined as well.

Fundamental studies of V.Budanov initiated new trends in technical application of sulfur containing reducing agents in fabric finishing, at producing chemicals additives for polymers, at chemical metallization of nitron fibres and in obtaining superpure metal powder. These results of the studies have been brought into commercial practice at some industrial enterprises.

The most significant works:

  1. V.V. Budanov. Chemistry and Technology of Reducing Agents on the Sulphoxylic Acid Bases. Rongalite and its Derivatives M.: Khimia. 1984. 160 P. [in Russian].
  2. V.V. Budanov. S.V. Makarov. Sulphur Containing Reducing Agents Chemistry (rongalite, dithionite, dioxide of thiourea) M.: Khimia. 1994. 142 P. [in Russian].
  3. Practical Works on Physical Chemistry. Ed. V.V. Budanov and N.K. Vorob’ev M.: Khimia. 1986. 352 P. [in Russian].
Yuri G. Bushuev

Yuri G. Bushuev

Doctor of Chemical Science, Leading Scientist of the “Chemical Reactions Thermodynamics” Research

Laboratory

Yuri G. Bushuev is an expert in the field of properties of liquids research by means of computer similation.

The principal works are devoted to properties of individual liquids and solutions study at submolecular, molecular and hyper-molecular levels. Yuri G. Bushuev is the author of the original method for liquids structure research. He has determined the formation regularities of the oriented water structure.

Yuri G. Bushuev was the first to determine the set of the characteristic structural elements – polyhedrons which consist of associated bonds cycles totality forming the water H-bond net. The universal functional dependencies characterizing the bond net in water and aqueous solutions have been found. Structural properties and regularities of H-bond systems establishment in liquid formamide, glycol and N-methylformamide have been studied. It was exemplified by some liquid systems that the main effect on the hyper-molecular systems and solvation spheres formation is provided by the universal intermolecular interactions.

The most significant works:

  1. Yu.G. Bushuev, V.P.Koroliov. Structural Properties of Dilute Dimethylformamide and Acetone Aqueous Solutions according to Computer Modelling Data Izvestia Akademii Nauk. Seria khimii. 1998. No 4. PP. 592-600 [in Russian].
  2. Yu.G. Bushuev, S.V. Davletbaeva, V.P. Koroliov. Structural Properties of Liquid Water Izvestia Akademii Nauk. Seria khimii. 1999. No 5. PP. 841-851 [in Russian].
  3. Yu.G. Bushuev, T.A. Dubinkina, V.P. Koroliov. Structural Peculiarities of Species Solvation in N,N-dimethylformamide Izvestia Akademii Nauk. Seria khimii. 2000. No 4. PP. 584-595 [in Russian].
Vladimir V. Kuznetsov

Vladimir V. Kuznetsov

Doctor of Chemical Science, Professor of Inorganic Chemistry Department

Professor Kuznetsov is a specialist in the field of liquid - phase systems by the X-Ray diffraction method studies.

Research group, lead by professor Kuznetsov, studies the structure of electrolyte solutions on the basis of water and water-organic systems. The model approach for the interpretation of the X-ray diffraction experiments has been developed.

V.V. Kuznetsov is an author of original procedures in the field of liquid-phase material studies by the X-ray diffraction method.

Prof. Kuznetsov established the regularities of water solution structure formation in a wide concentration range up to a glassy state. He was the first to obtain the set of characteristic structural parameters of glasses on the basis of water-electrolyte systems. Universal dependencies, characterizing the structure of vitrifying systems, have been found. Structural properties and regularities of structure organization of liquid organic systems have been investigated.

The most significant works:

  1. E.L. Nikologorskaya, V.V. Kuznetsov, O.V. Grechin, V.N. Trostin. X-Ray Study of Anion Aquation in Potassium Halide Solutions Zhurnal Neorganitcheskoy Khimii. 2000. Vol. 45. No 11. PP. 1904-1911. [in Russian]
  2. V.V. Kuznetsov, V.N. Trostin, M.V. Fedotova. Advances and Problems of Solvation Theory. Structural and Thermodynamic Aspects. Chapter 4. Moscow. Nauka. 1998. 247 P. [in Russian]
  3. M.V. Fedotova, V.N. Trostin, E.L. Nikologorskaya, V.V. Kuznetsov. D-Structure of Potassium Chloride Concentrated Water Solution on the Data of the Integral Equation Method and X-Ray Analysis Zhurnal Neorganitcheskoy Khimii. 1996. Vol. 41. No 2. P. 326. [in Russian]
Alexandr I. Lytkin

Alexandr I. Lytkin

Doctor of Chemical Science, Professor of Analytical Chemistry Department

Professor Lytkin is a specialist in the field of solution thermodynamics of complex compounds and key parameters determination of thermochemistry of heavy and transition metals.

The methods applied are: thermochemistry, spectrophotometry, potentiometry, computer simulation of complex equilibriums in solutions.

The original calorimetric methods of ions standard thermodynamic characteristics determination have been developed. The data obtained have been included in the fundamental handbook “Thermodynamic constants of substances” (Ed. V.P. Glushko. Moscow. 1965-1975).

The main parts of his work are devoted to determination of standard thermodynamic parameters of zirconium, hafnium and vanadium compounds; to thermodynamic parameters of acid-basic interaction reactions and complexation of heavy and transition elements with some carboxyl and phosphorus-containing complexones.

The most significant works:

  1. V. P. Vasil’ev, A. I. Lytkin. Standard Enthalpy Zr+2 Ion Formation in Aqueous Solution Zhurnal Neorganicheskoi Khimii. 1976. Vol. 21. P. 2610 [in Russian].
  2. V. P. Vasil’ev, A. I. Lytkin, Chernyavskaya N.V. Journal of Thermal Analysis. 1999. Vol. 55. P. 1003.
  3. A. I. Lytkin, V. P. Vasil’ev, A.V. Katrovtseva, N.V. Chernyavskaya Journal of Molecular Liquids. 2001. Vol. 91. No 12. P. 231.
Sergey V. Makarov

Sergey V. Makarov

Doctor of Chemical Science, Head of the Department of Food Technology and Biotechnology

The research activity of Sergei V.Makarov focuses mainly on kinetic studies of sulfur-containing reductants reactions, including thiourea oxides, as well as on activation of nitrite and inorganic peroxides by metalophorphyrinates and metalophthalocyaninates. In these studies, such methods as polarography, UV, IR, NMR and EPR spectroscopy are used.

The systematic studies of stability and reactivity of α-hydroxitalkane-sulfinates and thiourea oxides have been conducted. The processes of anaerobic and aerobic decomposition of thiourea have been studied in detail. The primary product of these processes – strong reductant sulfoxylate SO2 2- was shown to be a stable species in alkaline solutions. Its acidic properties were studied for the first time. Metalophthalocyaninates were shown to be the effective catalysts of reaction between sodium dithionite and nitrite or nitrous oxide as well as oxidation of azo dyes by perborate or percarbonate. The kinetics of the reaction mentioned was studied.

The researches are performed jointly with the chemists from Erlangen University (Germany).

The most significant works:

  1. S.V. Makarov. New Trends in Sulfur-containing Reducing Agents Chemistry Uspekhi Khimii. 2001. Vol. 70. No 10. PP. 996-1007 [in Russian].
  2. S.V. Makarov, E.V. Kudrik. Thiourea Dioxide Tautomeric Transformations in Aqueous Solution Izvestia Akademii Nauk. Seria khimii. 2001. No 2. PP. 196-198 [in Russian].
  3. S.A. Svarovsky, R.H. Simoyi, S.V. Makarov. Reactive Oxygen Species in Aerobic Decomposition of Thioureas Dioxides J. Chem. Soc. Dalton Trans.. 2000. No 4. PP. 511-514.
Valentin A. Sharnin

Valentin A. Sharnin

Doctor of Chemical Science, Professor, Head of General Chemical Technology Department, Vice-rector on Research Work

V.A. Sharnin is an expert on chemical reaction thermodynamics and solvation of reagents into different media. Together with the research staff of his department he studies the influence of solvent character on complexation processes in solutions applying the methods of potentiometric and calorimetric titration, spectrophotometric ones and computer simulation experiments.

Extensive experimental studies on reactions of transition metal ion coordination with ligands of various chemical groups, charge and structural types have been carried out. Summarizing these data on the basis of solvation approach enabled to determine general regularities for thermodynamics of complexation reactions and reagent solvation. These works are the foundation for developing scientific principles of the solvent application as a method for reaction control into liquid phase. The data obtained enable to predict a direction of chemical equilibrium shift, stability complex changing, energy and reaction rates when one solvent is replaced by another.

V.A. Sharnin is the author of the papers on the organization of university research work under new economical conditions. He is interested in theoretical foundations of chemical technology, economics and ecological problems of chemical industry.

The most significant works:

  1. V.A. Sharnin. Solvent Influence as Reagent and Medium on Stability Change of Aminocomplexes of Transition Metals in Water-Organic Mixtures Zhurnal Obshchei Khimii. 1994. Vol.64. No11. PP. 1914-1919 [in Russian].
  2. B.A. Shormanov, V.A. Sharnin. Solvation of Reagents and its Influence on Equilibrium Shift of Complexation in Water-organic Solvents In monograph “Advances and Problems of Solvation Theory”. Moscow: Nauka. 1988 [in Russian].
  3. V.A. Sharnin. Regularities of Water-organic Solvents Influence on Reaction Thermodynamics of Complexation (Review) Zhurnal Obshchey Khimii. 1994. Vol.69. No 9. PP. 1421-1429; 2001. Vol. 71. No 9. PP. 1452-1458 [in Russian].