Petya Nikolova

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To elucidate the differences in the interaction of chiralic ibuprofen (IBP) and naproxen (NAP) with poly(vinylpyrrolidone) (PVP) in a solid state. Drugs/PVP physical mixtures and solid dispersions were characterized by scanning electron microscope (SEM), Fourier transform infrared spectrometry (FT-IR), solid state 13C NMR spectroscopy, and x-ray(More)
The 3-benzthiazolyl-coumarins are widely used as laser dyes [1,2, 3], fluorescent dyes [4], light collec­ tors [2], etc. [5, 6]. The purpose of this paper is to study some new representatives of this group, as well as to elucidate theoretically the relationship between their elec­ tronic and photophysical properties. Table 1 shows the compounds(More)
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