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Molecular Structure, Physical and Chemical Processes in Gases and in Non-Equilibrium Plasma
Mikhail F. Butman
Doctor of Physical and Mathematical
Sciences, Professor of Department of Physics
Professor Butman is a specialist in the
field of high-temperature materials science, kinetics and thermodynamics of
chemical reactions, physical chemistry of surface phenomena and vapour state,
chemistry of solid state and mass-spectrometry.
Fields of research:
- Kinetics and
thermodynamics of ionic and molecular sublimation of inorganic ionic crystals,
intermetallic and organometallic compounds;
- Defect formation
processes and morphological and electrical properties of mono- and polycrystals
caused by them. Solid state ionics.
- Mechanisms of
high-temperature reactions on crystal surface, including ionic clusters
formation and saturated vapour oligomerization;
- Thermodynamic
properties of free ions and molecules.
The most significant works:
-
M. F. Butman, H. Dabringhouse.
Transient Behavour of the Thermal Ion Emission from KC1(001) upon Polarity Reversal of
the Electric Extraction Field.
Surface Science,
2003.
Vol. 540.
PP. 313-325.
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M. F. Butman, A.A.Smirnov, L.S.Kudin, H.Dabringhouse.
Mass Spectrometric Study of the Thermal Ion Emission from
Crystalline BaF2 at the Temperatures of Phase Transition to the Superionic State
Surface Science
2001.
Vol. 489.
PP. 83-89
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M. F. Butman, A. A. Smirnov, L. S. Kudin, Z.A. Minyr.
Vacancy Formation Energies and Mechanisms of Ion-Molecule Reactions
from Ionic Sublimation Measurements on Potassium Bromide Single Crystal.
Philosophical Magazine B.
2000.
Vol. 80. No 9.
PP. 1653-1666.
Georgy V. Girichev
Doctor of Chemical Science,
Professor, Head of Physics Department
Professor Girichev is a specialist in the
field of molecule structure studies and high temperature chemical reactions
research as well as in physical experiment techniques.
The research methods are: gas electron
diffraction, mass-spectrometry, laser Raman spectroscopy, and quantum-chemical
calculations.
Research group, which is lead by professor
Girichev, carries out up to the half of high temperature studies accomplished
by the gas electronography method in CIS and about one third ones in the world.
Research group possesses unique equipment for the studies in the temperature
range of 0-1300 0C including the one of the most powerful in the
world equipment set for performing synchronous electronographic and
mass-spectrometric experiment. This equipment set enables to investigate
unsaturated and overheated vapours, to study thermostability of the compounds,
to carry out directed synthesis of the desired substance in the course of the
experiment. The latter provides direct study of the radical structure.
Most of the works are devoted to the
research of the structure of molecules existing in gaseous phase under high
temperatures.
The most significant works:
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G.V. Girichev, N.I. Giricheva, N.V. Belova, N.P. Kuzmina.
Bis-complex Structure of Dipyvaloilmethanates of sp- and d-Elements in Gaseous Phase
Zhurnal Koordinatzionnoy Khimii.
1999.
Vol. 25. No 12.
PP. 1-8.
[in Russian]
-
N.I. Giricheva, G.V. Girichev.
Molecular Structure of Niobium tetra- and oxytrihalides
J. Mol. Struct.
1999.
Vol. 484. No 4.
PP. 1-9.
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G.V. Girichev, N.I. Giricheva.
Structural Manifestations of Internal Periodicity in the Series of Transition Metals Halides
Zhurnal Neorganitcheskoi Khimii.
1999.
Vol. 44. No 7.
PP. 1101-1103.
[in Russian]
Lev S. Kudin
Doctor of Chemical Science,
Professor of Physics Department
Professor Kudin is one of the creators of
new a version of mass-spectrometric method of ionic-molecular equilibriums. The
new scientific school on thermoemission of clusters ions by poor volatile inorganic
compounds has also been founded by him.
His field of research interests is high
temperature chemistry and high temperature materials.
The main directions of activity are:
- Studies of ionization and fragmentation mechanisms under the electron impacts
- Investigation of ion-molecular reaction thermodynamics
- Determination of thermodynamic activity of independent components of alloys and multi-component systems
- Studies of thermo-ionic emission of solid electrolytes
- Studies of kinetics of molecular and ion sublimation of single crystals.
Objects of investigation are inorganic
substances: halides, oxides and hydroxides of alkaline and alkali-earth metals;
chlorides of lanthanides, copper, silver, aluminum; salts of oxygen containing
acids; solid electrolytes; aluminuim; aluminosilicates; alloys on the base of
Mg, Ba, Si, Zr etc.
The most significant works:
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L. S. Kudin, A.M. Pogrebnoi, I. V. Khasanshin, V. B. Motalov.
Thermodymanic Properties of Neutral and Charged Species in High Temperature Vapour
over Terbium and Thulium Trichlorides
High Temp. High Press.
2000.
Vol. 32. No 5.
PP. 557-565.
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K. V. Rakov, L. S. Kudin, A.M. Pogrebnoy.
Mass-spectrometric Study of the Thermoemission of
Neutral and Charged Particles from Copper Mono Iodide
Zhurnal Neorganitcheskoy Khimii.
2001.
Vol. 46. No 9.
PP. 1567-1570
[in Russian]
-
M. F. Butman, L. S. Kudin, A.A. Smirnov, Z.A. Munir.
Mass Spectrometric Study of the Molecular and Ionic Sublimation of Cesium Iodide Single Crystals
Int. Journal of Mass Spectrometry.
2000.
Vol. 202.
PP. 121-137.
"
Alexander M. Pogrebnoy
Doctor of Chemical Science,
Professor of Physics Department
Professor Pogrebnoy is a specialist in the
field of mass-spectrometric investigations of inorganic compounds.
Areas of his research interests are:
- Studies of ion-molecular equilibriums in inorganic compounds vapours;
- Thermodynamic determination of ionic and molecular associates characteristic;
- Study of thermo-ion emission from solid electrolytes.
- Objects of investigation are: halides of alkaline, alkali-earth metals and lanthanides as well as different classes of solid electrolytes.
Professor A.M. Pogrebnoy was the first to
discover large ionic and molecular associates in vapours over halides of
lanthanides. It has been shown that solid electrolytes are effective emitters
of ions and ionic associates. A number of studies on polymer materials
gas-permeability and on porophores decomposition kinetics by mass-spectrometric
method have been performed. The researches have been several times supported by
the grants of the International Program in the field of science.
The most significant works:
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A.M. Pogrebnoy, L. S. Kudin, A.Yu. Kuznetsov, M. F. Butman.
Molecular and Ionic Clusters in Saturated Vapour over Lutetium Trichloride
Rapid Communications in Mass Spectrometry.
1997.
Vol. 11.
PP. 1536-1546.
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A.M. Pogrebnoy, L. S. Kudin, K. V. Rakov.
Thermo-emission of Molecules and Ions from Solid Electrolytes
CsAg4I5 and KAg4I5
Zhurnal Fizitcheskoy Khimii.
2001.
Vol. 75. No 5.
PP. 825-830
[in Russian]
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A.M. Pogrebnoy, L. S. Kudin.
Formation Enthalpies of Neutral and Charged Components of
Saturated Europium Dichloride Vapour
Zhurnal Fizitcheskoy Khimii.
2003.
Vol. 77. No 1.
PP. 21-29
[in Russian]
Vladimir V. Rybkin
Doctor of Chemical Science,
Professor of Department of Electronic Devices and Materials
V.V. Rybkin is an expert on physics and chemistry of
non-equilibrium plasma and its applications for material treatment, head of the
research group.
The main methods of studies are:
mass-spectrometry, optical emission and absorption spectroscopy, electron-spin
resonance spectroscopy, Lagmuir probes, Fourier Transform Infrared by
Attenuated Total Reflectance. Special in-house created methods of numerical
modelling of plasma systems are applied also. These methods are based on
self-consisted solution of Boltzmann equation for plasma electrons, equations
of vibrational and chemical kinetics as well as equations of charge balance.
Extensive studies of physico-chemical
properties of low pressure plasmas in oxygen, air, oxygen-nitrogen mixtures and
some others as well as processes of interaction of these plasmas with the
surface of some polymer materials (polyethylene, polypropylene, polyethylene
terephthalate, polyimide etc.) have been carried out. As a result, the
scientific foundations of methods for simulation of plasma chemical reactor
operation for polymer material treatment were created. Lately intensive studies
in the field of physico-chemical properties of atmospheric pressure plasma with
liquid electrodes and its application for polymer modification for
immobilization of different organic molecules on polymer surface have been
accomplished.
Studies of the research group were
supported with different grants including Russian Foundation for Basic
Researches, INCO COPERNICUS, Korean Organization of Science and Engineering
Foundation and some others. The research group has close scientific and
educational relations with some Universities abroad including
Karlov University Prague, Czech Republic),
Pierre and Marie Curie University Paris, France),
Chungnam National University
(The Republic of Korea).
The most significant works:
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V. Rybkin, A. Bessarab, E. Kuvaldina, A. Maximov, V. Titov.
Self-Consistent Analysis of Low-Temperature Oxygen Plasma
and Processes of its Interaction with Some Polymer Materials
Pure & Appl. Chem.
1996.
Vol.68. No5.
PP. 1041-1045
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A-M. Diamy, J-C. Legrand, V. Rybkin, S. Smirnov.
Experimental Study and Modelling of Formation and Decay of Active Species in an Oxygen Discharge
Contr. Plasma Phys.
2005.
Vol.45. No 1.
PP. 5-21.
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V.A.Titov, V.V. Rybkin, A.I. Maximov, H.-S. Choi.
Characteristics of Atmospheric Pressure Air Glow Discharge with Aqueous Electrolyte Cathode
Plasma Chemistry and Plasma Processing.
2005.
Vol.25. No 5.
PP. 503-518.
Victor G. Solomonik
Doctor of Chemical Science,
Professor of Physics Department
His field of scientific interests is
quantum chemistry, molecules structure and spectra.
The main directions of activity are:
Development of the ab initio quantum chemical calculation methods of vibronic spectra of a molecule;
Ab initio study of structure and spectra of simple and complex inorganic molecules and ions.
The most important results obtained are the following:
- The set of effective ab initio methods of the force fields and vibronic molecular spectra
calculation has been developed. It provides carrying on sensitive
investigations of complex polyatomic molecules applying high approaches of ab
initio quantum chemistry by means of PC.
- Significant
contribution to the theory and methodology development of ab initio
calculation of observed properties of structure-unrigid molecules and molecules
possessing low lying excited electron states, including the molecules
displaying the Jahn-Teller effect, has been made.
- Structure and spectra
of more that several hundreds of simple and complex molecules and ions existing
under a high temperature in gaseous phase have been studied by the ab initio
calculation quantum chemistry methods.
Professor Solomonik conducts research in
cooperation with some quantum chemistry laboratories and groups abroad. His
works were supported with the grants of International and Russian foundations.
The most significant works:
-
V. G. Solomonik, J. E. Boggs, J. F. Stanton.
Jahn-Teller Effect in VF3
J. Phys. Chem.
1999.
Vol. 103.
P. 838.
-
V. G. Solomonik, A. V. Marenich.
Isomerism and Vibronic Spectra of Alkaline Metal Perrenates: ab
initio Calculations by CISD+Q method
Zhurnal Structurnoy Khimii.
2001.
Vol. 42. No 6.
P. 1097
[in Russian]
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V. G. Solomonik, T.P. Pogrebnaya.
Jahn-Teller Effect in Molecules of Vanadium, Niobium and Tantalum Tetrafluorides
Zhurnal Neorganitcheskoy Khimii.
2001.
Vol. 46. No 12.
P. 2039.
[in Russian]
Vladimir I. Svetsov
Doctor of Chemical
Science, Professor, Head of Department of Electronic Devices and Materials,
Vice-Rector on Academic Affairs
Professor Svetsov is the head of the
scientific trend “Kinetics and mechanisms of low-temperature non-equilibrium
plasma interaction with solid inorganic materials” and the head of the
corresponding scientific group.
Methods applied are mass-spectrometry,
optical emission and absorption spectroscopy, electron-spin resonance
spectroscopy, physical methods of plasma parameters measurement and
mathematical modelling of non-equilibrium plasma of molecular gases.
The gases under investigation are: helium,
neon, argon, krypton, xenon, hydrogen, nitrogen, oxygen, carbon oxide and
dioxide, chlorine, bromine, water vapour, ammonia, tetrachloro- and
tetraflouromethane, sulfur hexafluoride and various gaseous mixtures. Solids
under study are: iron, nickel, cobalt, copper, molybdenum, gallium arsenide,
aluminium, carbonic materials, dielectrics (glass, ceramics, quartz).
In his studies professor Svetsov determined
the conditions of highest possible active particles concentrations generation.
Kinetic regularities and mechanisms of non-equilibrium plasma of molecular
gases interaction with inorganic materials have been studied in detail both for
pure gases and for their mixtures; models of heterogeneous interaction of
active plasma species with solids have been proposed.
Lately the main attention is given to the
research of heterogeneous plasma chemical processes in halogen and halogen
hydride mixtures with noble and molecular gases.
The most significant works:
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V. I. Svetsov, D. V. Sitanov , A. M. Efremov.
Atom Formation Mechanism in Plasma of Chlorine and Nitrogen Mixtures
High Energy Chemistry.
1999.
Vol. 33. No 2.
PP. 137-141.
[in Russian]
-
V. I. Svetsov, A. M. Efremov, N. L. Ovchinnikov.
Gallium Arsenide Plasma Chemical Etching in Mixtures of Chlorine and Argon
Microelectronics.
1999.
Vol. 28. No 1.
PP. 16-20.
[in Russian]
-
V. I. Svetsov, A. M. Efremov, D. I. Balashov.
Compilation of Cross Section Data of Elementary Processes of HCl Applicable for Plasma Modelling
Contribution Plasma Phys.
1999.
Vol.39. No 3.
PP. 247-250.
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