Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Piotr Barczyński"'
Autor:
Joanna Kurek, Piotr Barczyński
Publikováno v:
Croatica Chemica Acta, Vol 89, Iss 3, Pp 297-308 (2016)
Colchiceine complexes with Li+, Na+ and K+ cations have been synthesized and studied by 1H and 13C NMR, FT-IR, FAB MS and UV-Vis. It has been shown that colchiceine forms stable complexes especially with lithium cation and the most stable structures
Externí odkaz:
https://doaj.org/article/ba1c9b05f5984695b6a1347cfb955fba
Autor:
Anna Komasa, Andrzej Katrusiak, Zofia Dega-Szafran, M. Szafran, Piotr Barczyński, Kinga Roszak
Publikováno v:
Vibrational Spectroscopy. 99:44-49
Molecular structure and properties of 6-hydroxyquinolinium bromide monohydrate have been characterized by X-ray diffraction, B3LYP/6-311++G(d,p) calculations and FTIR spectroscopy. Centrosymmetric cyclamers R 4 4 (8) of OH⋯Br− bonding two molecul
Publikováno v:
Journal of Molecular Structure. 1163:345-356
The structures of 1,3-bis(3-hydroxymethylpyridinium)propane dibromide (1), 1,3-bis(3-hydroxymethylpyridinium)propane tetrabromozincate (2) and 1,3-bis(3-hydroxymethylpyridinium)propane tetrabromocuprate (3) have been studied by X-ray diffraction, DFT
Autor:
Beata Jasiewicz, Grzegorz Cofta, Krzysztof Myszkowski, Piotr Barczyński, Rafał Kurczab, Marek Murias, Patrycja Kwaśniewska-Sip, Joanna Kurek
Publikováno v:
MedChemComm. 9:1708-1714
A series of new semi-synthetic 7-deacetyl-10-alkylthiocolchicne derivatives with ethyl, n-propyl, i-propyl and n-butyl substituents were synthesised and characterised by spectroscopic methods, elemental analysis, DFT calculations and molecular dockin
Autor:
Małgorzata Ratajczak-Sitarz, Anna Gąsowska, Stanisław K. Hoffmann, Andrzej Katrusiak, Alina Zalewska, Piotr Barczyński, Łukasz Czekański, Janina Goslar
Publikováno v:
ChemistrySelect. 2:11120-11130
Publikováno v:
Journal of Molecular Structure. 1145:86-93
This study treats about four new pyridine amide derivatives obtained by a simple and inexpensive method of synthesis which consisted in amide coupling of pyridine-2-carboxylic acid and pyridine-4-carboxylic acid chlorides and aromatic amines: methyl
Autor:
Kinga Roszak, Andrzej Katrusiak, Piotr Barczyński, Anna Komasa, Zofia Dega-Szafran, M. Szafran
Publikováno v:
Vibrational Spectroscopy. 92:188-193
The molecular structure and properties of 5-(dimethylphenylammonium)-valeric acid bromide hydrate have been characterized by X-ray diffraction, B3LYP/6–311++G(d,p) calculations, FTIR and Raman spectra. The molecules are linked through the water mol
Autor:
Piotr Przybylski, Grzegorz Cofta, Krzysztof Myszkowski, Paweł Śliwa, Rafał Kurczab, Patrycja Kwaśniewska-Sip, Joanna Kurek, Piotr Barczyński, Marek Murias
Publikováno v:
Chemical biologydrug designREFERENCES. 94(5)
Complexes of colchiceine with monovalent cation perchlorates and iodides have been obtained and characterized by spectroscopic methods. DFT and spectroscopic studies reveal that the dihedral angle ω1-1a-12-12a , crucial for colchicine biological mec
Autor:
Anna Komasa, Piotr Barczyński, Mirosław Szafran, Małgorzata Ratajczak-Sitarz, Zofia Dega-Szafran, Andrzej Katrusiak
Publikováno v:
Journal of Molecular Structure. 1120:341-350
The molecular structure of 1,2-di(3-hydroxymethylpyridinium)ethane dibromide (1) has been characterized by X-ray diffraction, B3LYP/6-311++G(d,p) calculations, FTIR, Raman and NMR spectra. The crystals are monoclinic, space group C2/c. 1,2-Di(3-hydro
Autor:
Romualda Bregier-Jarzebowska, Stanisław K. Hoffmann, Janina Goslar, Alina Zalewska, Łukasz Czekański, Małgorzata Ratajczak-Sitarz, Anna Gąsowska, Andrzej Katrusiak, Piotr Barczyński
Publikováno v:
New Journal of Chemistry. 40:10526-10535
A new Cu(II) carboxylate coordinating compound [1-methyl-3-carboxymethyl benzimidazolium betaine]2CuBr2 was synthesized and crystallized. The crystal has the triclinic symmetry P, with unit cell dimensions a = 7.9693, b = 8.4129, c = 9.1302 A, α = 6