Department of Color and Constitution of Organic Compounds is managed by Dr. of Chemical Sciences, Prof. A.I. Tolmachev, the author of  300 publications on the chemistry and properties of dyes.
Prof. A.I.Tolmachev  together with leading scientist Dr.Yu.L.Slominkii has developed the methods which allowed them to synthesize first photochemically and thermally stable polymeric dyes absorbing in the near IR region.
    Department scientists have huge experience in the design, modeling, synthesis and practical use of nitrogen, oxygen, sulfur - contained heterocycle derivatives, especiially polymethine dyes. General approach to thermal and photochemical stability  of these dyes was proposed. Correlations between chemical structure and optical  properties were found. New kinds of dyes were developed, including active  laser media, sensitizers for infrachromatic photographic materials and fluoroscence probes for biomembranes.  Designed  different fluorophotochromic compounds.  Different dyes evaporable were synthesized. 

    Molecular design of the organic compounds is carried out by Dr. A.D. Kachkovsky,  the author of the monograph dedicated to theory of electron transitions in conjugated systems based on quantum-chemical calculations for electronic structure of  molecules. Original mathematical models of polymethines were developed  and a system of topological indices was used in molecular design of new dyes. The theory of delocalized or cooperative and local transitions has been evolved, the regularities have been investigated in changing the nature of long wavelength and higher-order transitions, from the excited to the ground  or other states (superabsorption).

Profs A.ToLmachev and A.Kachkovsky are discussing dye solid film growth and properties as function of their chemical structure with Drs. O.Dimitriev and D.Grynko.

Some papers :
1. M.A.Kudinova, A.D.Kachkovskii, V.V.Kurdiukov, A.I.Tolmachev. Nature of the absorption bands of pirilocyanines. 2. Influence of t-Bu, Ph and Th ring substitutions. Dyes and pigments, 2000, v.45, p.1-7.
2. M.Sczepan, W Rettig, Y.Bricks,  A.I.Tolmachev, Yu.L.Slominsky. Unsymmetric cyanines: chemical rigidisation and photophysical properties. J.Photochem.Photobiol. A,1999,v.124,P.75-84.
3. Yu.P.Kovtun, M.A.Prostota, A.I.Tolmachev. Ionochromic bases of polymethine dyes of pirilo-quinoline rows. Ukrainian Chem.J., 1999, v.65,N12, p.92-95.
4. Y.Bricks, Yu.L.Slominsky, M.A.Kudinova, A.I.Tolmachev, K.Rurack, U.Resch-Genge. Syntheses and photophysical properties of a series of cation sencitive polymethine and styryl dyes. J.Photochem.Photobiol. A,2000,v.132, P.193-208.
5.  A.I.Tolmachev, A.Ya.Il"chenko, V.V.Kurdukov. Electron structure and absorption spectra of sguarilium dyes. Ukr. Chem.J., 1999, v.66,N12, p.119-122.
6. A.I.Tolmachev, Yu.L.Slominskii, A.A.Ishchenko. New cyanine dyes absorbing in the NIR region, Near-infrared dyes for High Technology applications, Edit. S.Daehne, U.Resh-Genge, O.Wolfbeis, Kluwer Acad.Publish., 1998, p.384-415.
7. A.I.Tolmachev, Yu.L.Slominskii, M.A.Kudinova. State-of-art in the chemistry  of near-IR-absorbing polymethine dyes. J.Sci.Appl. Photography, 39,  N5, p487-509, 1998.
8. A.I.Tolmachev, Yu.L.Slominsky, M.A.Kudinova. Modern design of polymethine dye chemistry. J.Appl.Sci.Photography, 1997, v.42,N5, p.54-77.
9. A.I.Tolmachev, Yu.L.Slominskii, et al. J-aggregates of tricarbocyanine dyes with fixed polymethine chain incorporated in LB films. TSF, 245, p.191-195, 1994.
10. A.D.Kachkovski. Polymethine dyes. Kirk-Othmer Encycl. Chem. Technol., 4-th Ed. V.19, 1996, p.1004-1030.
11. A.D.Kachkovski, N.M.Kovalenko.  Barriers of conformal transitions in the linear donor-acceptor systems Theor.experim.Chem. 33, N4, p.224-228, 1997.
12. A.D.Kachkovski, D.Kachkovski. The nature of electronic transitions in linear conjugated systems. Russian Chem. Rew. 66, N8, p.647-664, 1997.
 

Fluorochemistry Department.

Department is headed by Prof.Yu.L.Yagupolskii, the son of Prof.L.M.Yagupolskii.