Dimiter Tsankov
Position: Assoc.Professor
Education:
M.Sc. in Chemistry, 1977, University Of Sofia
PhD in Chemistry, 1985, Institute of Organic Chemistry, Bulgarian Academy of Sciences
Field of Study: IR Polarization Spectroscopy: IR linear dichroism, Vibrational circular dichroism, IR ellipsometry.
Current research interests:
Vibrational circular dichroism behaviour of DNA oligonuclotides. Influence of different factors: base sequence, pH, salt concentration and interactions with drugs on the DNA structure and conformation.
IR spectroscopic ellipsometry study of thin ordered organic layers, Langmuir-Blodgett films and self-assembled monolayers on metal or silicon surfaces. Relationship between spectra and molecular orientation of the films
Visiting fellowships:
ISAS-Institute for Analytical Sciences, Dortmund, Germany – 1982, 1986, 1988, 1990.
Department of Chemistry, University of Calgary, Canada – 1993-94, 1995, 1998, 1999-2000, 2002, 2004
ISAS-Institute for Analytical Sciences-Berlin, Germany – 2001, 2003, 2004.
Memberships:
Founding Member of the non-profit legal entity "Bulgarian Society for Organic and Metaloorganic Chemistry",founded in March 2004 with the purpose to disseminate scientific results and to support young scientists.
Publications:
D. Tsankov, T. Eggimann, H. Wieser, An Alternative Design for Improved FTIR-VCD Capabilities Appl. Spectrosc. 49, 132 (1995)
J. McCann, D. Tsankov, Nan-Xing Hu, G. Liu and H. Wieser, VCD study of synthetic chiral polymers: stereoregularity in poly-menthyl Methacrylate, J. Mol Structure, 349, 309 (1995).
J. Nieman, B. Keay, M. Kubicki, D. Yang, A. Rauk, D. Tsankov and H. Wieser, Determining absolute configuration by vibrational circular dichroism of (+)-1,5,6- and (-)-1,5,6-spiro [4,4] nonane-1,6-diol J. Org. Chem.,60, 1918 (1995).
A. Rauk, D. Yang, D. Tsankov, H. Wieser, Yu. Kotypin, A Gedanken and G.V.Shustov, Chirooptical properties of 1-azabicyclo[3.1.0]hexane in the vacuum-UV and IR regions, J. Am. Chem. Soc., 117, 4160-66 (1995).
D. Tsankov, V. Dimitrov, H. Wieser, FT-VCD spectra and ab initio 6-31G*(0.3) intensities for camphor and 2-vinyl-exo- borneol Mikrochim. Acta, Supl. 14, 535 (1997).
V. Maharaj, H.J. van de Sande, D. Tsankov, A. Rauk and H. Wieser, Towards interpreting the FT-IR and VCD Spectra of Selected Octadeoxynucleotides Mikrochim.Acta, Supl. 14, 529 (1997).
D. Tsankov, K. Hinrichs, A. Röseler, E.H. Korte, FTIR Ellipsometry as a Tool for Studying Organic Layers: From Langmuir-Blodgett Films to Can Coatings, Phys. Stat. Sol. (a) 188 (4) (2001) 1319-1329
K. Hinrichs, D. Tsankov, E.H.Korte, A Röseler, K. Sahre, K.-J. Eichhorn, Comparative Study of an Anisotropic Polymer Layer by Infrared Spectroscopic Techniques, Appl.Spectrosc. 56 (6) (2002) 737-743
D. Tsankov, K. Hinrichs, E.H. Korte, R. Dietel, A. Röseler, Infrared ellipsometry of Langmuir-Blodgett films on gold - towards interpreting the molecular orientation,Langmuir 18 (2002) 6559-6564
E.H. Korte, U. Schade, W.B. Peatman, A. Röseler, A.; D. Tsankov, K. Hinrichs, Infrared Ellipsometric View on Monolayers: Towards Resolving Structural Details Anal. Bioanal. Chem. 374 (2002) 665-671
Dimiter Tsankov, Berndt Kalisch, Hans van de Sande and Hal Wieser, Cisplatin-DNA Adducts by Vibrational Circular Dichroism Spectroscopy:Structure and Isomerization of d(CCTG*G*TCC)•d(GGACCAGG) Intrastrand Cross-linked by Cisplatin,J. Phys. Chem. B 107 (2003) 6479-6485
Dimiter Tsankov, Berndt Kalisch, Hans van de Sande and Hal Wieser, Cisplatin Adducts of d(CCTCTG*G*TCTCC)•(GGAGACCAGAGG) in aqueous solution by Vibrational Circular Dichroism Spectroscopy Biopolymers (Biospectroscopy), 72 (2003) 490-499.
B. Jordanov, D. Tsankov, E.H. Korte Peculiarities in the stretching IR transitions of the methylene groups J. Mol. Struct. 651-653 (2003) 101-107.
V. Andrushchenko, D. Tsankov, and H. Wieser, Vibrational circular dichroism spectroscopy and the effects of metal ions on DNA structure, J. Mol. Structure. 661-662 (2003) 541-560.
B. Jordanov, D. Tsankov, K. Hinrichs, R Dietel, E.H. Korte, Vibrational Analysis of 2-[N-Dodecanoylamino)phenyl]-5- (4-nitorphenyl)-1,3,4-oxadiazole, Anal. Bioanal. Chem 375 (2003) 1246-1249
P. Angelova, K. Kostova,K.Hinrichs, D.Tsankov, A convenient synthesis of long-chain 4-substituted benzyloxycarbonyl alkanethiols for the formation of self assembled monolayers on metal substrates Cent. Eur. J.Chem. 3(4) (2005) 658-667.
D.Tsankov, E.Radeva, K. Hinrichs, A. Röseler, E.H. Korte, Infrared spectroscopic ellipsometry and atomic force microscopy study of plasma polymerized hexamethyldisiloxane layers post-treated by NH3 plasma Thin Solid Films 476 (2005) 174-180.
Maria L. Krasteva, Dimiter Tsankov, J. Hans van de Sande, and Hal Wieser Synthetic DNA and RNA octamers as single strands, double strands and hybrids by Vibrational Circular Dichroism and Infrared Absorption Spectroscopy Bulg. Chem. Commun. 37 (2005) 243-255
M. Rogojerov, G. Keresztury , D. Tsankov, G. Andreev, E.H. Korte, B. Schrader Infrared and Raman Polarization Spectroscopy of Molecules Aligned in Nematic Liquid Crystals: Results from Cooperation with Bojidar Jordanov Bulg. Chem. Commun. 37 (2005) 213-229
D. Tsankov, M. Krasteva, V. Andrushchenko, J.H. van de Sande, H. Wieser Vibrational Circular Dichroism Signature of Hemiprotonated Intercalated Four- stranded DNA Biophys. Chem. 119, (2006) 1-6.
A.Pandyra, D. Tsankov, V. Andrushchenko, J.H. van de Sande, and H. Wieser Intercalation of Daunomycin into d(CG)4 Oligomer Duplex containing G•T Mismatches by Vibrational Circular Dichroism and Infrared Absorption Spectroscopy, Biopolymers, 2006 (in press)
Contact info:
Phone: +359 2 9606150
Fax: +359 2 8700 225
Adress: Group Of Vibrational Spectroscopy
Institute of Organic Chemistry, Bulgarian Academy of Sciences
"Acad. G. Bonchev" Str. Block 9 P.O. 1113
Sofia, Bulgaria
E-mail: dtsankov@orgchm.bas.bg