LABORATORY STRUCTURAL ORGANIC ANALYSIS

Research interests

The basic research topics are in the interdisciplinary field of the structural organic analysis, carried out experimentally (by means of vibrational spectroscopy and X-ray diffraction) as well as theoretically (on the basis of modern non-empirical quantum-chemical methods). The research object is a large series of organic compounds (biologically active compounds, food additives etc., including isotope labelled ones), their hydrogen-bonded complexes as well as anions-intermediates in important chemical reactions. The results obtained make it possible to follow the spectral and structural variations, caused by the conversion of organic molecules into complexes and anions, as well as elucidation of the structure activity relationship.

he scientific expertise of the Group of Molecular Electronic Spectroscopy covers experimental investigations by UV-VIS absorption, steady-state and dynamic luminescent spectroscopy aiming at elucidation of the relationship between the structure (chemical and electronic) of conjugated organic compounds and the deactivation processes of their singlet and triplet electronically excited states. The photophysical and photochemical properties of more than 800 organic compounds and dyes are studied, including pyrazolones, oxazolones, benzthiazoles, triazoles, benzopyranes, benzylidenephthalides, indanediones, indenones, coumarines and izo-coumarines, naphthiridines, perylene dyes, acridines, pyrylium and xanthilium dyes, porphyrins, merocyanine and asymmetric monomethincyanine dyes, etc. Our research is directed to the possible application of the studied compounds as fluorescent markers for polymers, biopolymers and nanoparticles, and as bio- and chemical sensors.

The research of the Group of Vibrational spectroscopy is focused on infrared linear dichroism of molecules oriented in nematic liquid crystal matrices and infrared ellipsometric studies of thin films and self-assembled monolayers on metallic and silicon surfaces.

A recent research topic of the Laboratory Structural Organic Analysis is identification and study of Bulgarian historical and artistic objects by means of analytical techniques. The aim of the research is to support the preservation of the Bulgarian cultural heritage.

LABORATORY MEMBERS

Head:

Assoc. Prof. Bistra Stamboliyska


02 9606 406
127
bs@orgchm.bas.bg
Name Room Phone -mail*
Assoc. Prof. Bistra Stamboliyska, PhD, Head 406 127 bs
Prof. Denitsa Pantaleeva, PhD 303 106 deni
Assoc. Prof. Evelina Velcheva, PhD 406 127 ev
Assoc. Prof. Marin Rogojerov, PhD 101 150 mrogojer
Assoc. Prof. Milena Spassova, PhD 219 193 mspasova
Assoc. Prof. Snezhana Bakalova, PhD 212 126 bakalova
Assist. Prof. Nadezhda Markova, PhD 220 197 nadya
Assist. Prof. Neda Anastasova, PhD 303 106 neda
Assist. Prof. Simeon Stoyanov, PhD 413 138 s_stoyanov
Maria Argirova, PhD student 413 138 margirova
Anton Kostadinov, chemist 413 138 aak
Nikolay Lumov, technician

Projects

Selected group publications(Q1)

2018

Spectrochimica Acta Part A, 192,
263-274
Synthesis, spectroscopic and TD-DFT quantum mechanical study of azo-azomethine dyes. A laser induced trans-cis-trans photoisomerization cycle
Bioorganic Chemistry,
80,
693-705
Synthesis and DNase I inhibitory properties of some 5,6,7,8-tetrahydrobenzo[4,5] thieno[2,3-d]pyrimidines