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Associate Professor of Chemistry Candidate of Science (PhD), Kiev State University, Ukraine, 1985 |
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Research Interests
The main focus of my scientific curiosity is chemistry and applications of oxime-bearing ligands and their metal complexes. Specifically I am interested in a new class of low molecular weight organic molecules - cyanoximes – compounds that have general formula NC-C(=N-OH)-R, where R is an electronwithdrawing group such as –CN, amide -C(O)NR’2, thioamide –C(S)NR’2, keto –C(O)R’, carboxylic ester, acid, substituted phenyl or heteroaryl fragments (pyridine, imidazole, benzimidazole, benzthiazole, benzoxazole, etc.). Today 39 different cyanoximes are obtained, characterized and available for further studies. Presence of the –CN group by 10 – 10000 times increases acidity of compounds which makes them better ligands due to easy formation of planar, conjugated yellow colored anions. They readily form numerous coordination compounds with p-, d- metals and lanthanides as oppose to other known monoximes such as aldoximes and ketoximes. Many cyanoximes and their metal derivatives have shown significant biological activity ranging from antimicrobial and cytotic, to growth regulation in plants and organophosphorous pesticides detoxifying agents (antidots). This side of biological properties of these compounds is reflected in many patents, presentations and publications. One of research projects in my group is dedicated to synthesis, characterization and in vitro biological studies of antimicrobial activity (Ag complexes) and cytotoxicity (Pd, Pt; organotin(IV)) of a large group of previously unknown metallocyanoximates. This work is carried out in collaboration with Prof. Paul Durham from MSU Biology Department. Another project is dealing with preparation of coordination polymers with metal ions such as Tl(I) or Pt(II) in close special proximity to each other, often almost as close as distance in these metallic elements. Third research project is dedicated to investigations of properties of a group of visible light insensitive Ag(I) complexes that are able to develop sharp and contrast image after exposure to high energy photons such as UV- and X-ray radiation.
Professional Affiliations
American Chemical Society
Society of Biological Inorganic Chemistry