Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Teresa Borowiak"'
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 4, Pp o824-o824 (2009)
Molecules of the title compound, C16H8N6, lie on crystallographic inversion centres. A dihedral angle of 16.1 (1)° is formed between the central tetrazine ring and the plane of each cyanophenyl group. The molecules form stacks along [100] with a per
Externí odkaz:
https://doaj.org/article/dc5bb00c619e4a859e8b78672cc50a0d
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 1, Pp o229-o229 (2008)
The thioamide and quaternary amine parts of the title compound, C6H15N2S+·Cl−, are mutually almost perpendicular, the dihedral angle being 80.6 (7)°. The thioamide group is planar and adopts a Z conformation, whereas the amine end of the cation i
Externí odkaz:
https://doaj.org/article/faa5d23d460147dc9c801b8a02a5dc4e
Autor:
Teresa Borowiak, Grzegorz Dutkiewicz, Maciej Kubicki, Marek Pietraszkiewicz, Agnieszka Gil, Rainer Mattes
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 1, Iss 1, p 16 (2005)
The macrocyclic amine, 1,5,9,18,22,26-hexaaza [11.11]-p-cyclophane (1) contains two dipropylenetriamine units which make the molecule highly basic. Owing to this basicity, 1 can be highly protonated in acidic media and can form supramolecular assembl
Externí odkaz:
https://doaj.org/article/9ff7b394a9c140caac373788a52710d7
Autor:
Anna M. Kaczmarek, Grzegorz Dutkiewicz, Jerzy Karpiuk, Rik Van Deun, Oksana Pietraszkiewicz, Marek Pietraszkiewicz, Teresa Borowiak, Alina Majka
Publikováno v:
Journal of Luminescence. 170:411-419
Tetraphenylimidodiphosphinate (tpip) forms neutral 3:1 complexes with lanthanide ions. These complexes can accommodate one ancillary planar heterocyclic ligand to complement their coordination sphere of Eu 3+ to coordination number 8. Several co-liga
Autor:
Władysław Boczoń, Irena Wolska, Joanna Kurek, Teresa Borowiak, Marek Murias, Krzysztof Myszkowski
Publikováno v:
Letters in Drug Design & Discovery. 11:279-289
Semi-synthetic C-10 alkyl thio analogues of the cytotoxic natural alkaloid colchicine have been found to exhibit cytotoxicity towards tumour cell lines at levels comparable to that of the natural product. An efficient synthesis of 10-alkyl thiocolchi
Autor:
Lieven Penninck, Teresa Borowiak, Jeroen Beeckman, Oksana Pietraszkiewicz, Oksana Drobchak, Suraj Mal, Igor Czerski, Grzegorz Dutkiewicz, Michal Maciejczyk, Kristiaan Neyts, Marek Pietraszkiewicz
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 250:85-91
The new triphenylene 1,3-diketone (1-triphenylen-2-yl-3-trifluoroacetylacetone (TphTA)) and its europium complexes were synthesized. The preliminary data on photophysical properties of Eu(TphTA)3(H2O)(C2H5OH) (1), Eu(TphTA)3(TOPO)(H2O) (2), Eu(TphTA)
Autor:
Teresa Borowiak, Arkadiusz Listkowski, Wioleta Osińska, Marek Pietraszkiewicz, John Mohanraj, Grzegorz Dutkiewicz
Publikováno v:
Synthetic Metals. 162:1285-1291
Synthesis and spectroscopic characterization of novel lanthanide complexes, based on tripodal ligands prepared by reaction of 3-aryl/heteroaryl-4-benzoyl-1-phenyl-5-pyrazolone (where aryl/heteroaryl = phenyl, 2-pirydyl or 2-thienyl) with tris(2-amino
Publikováno v:
Journal of Molecular Structure. 1020:41-47
A new derivative of polyamine, tetramethylene-1,4-bis(N-deoxyglucitolammonium chloride) (4), has been synthesized and its structure studied by X-ray diffraction, DFT calculations, solid state FTIR and 1H and 13C NMR spectroscopy in D2O. The dication
Autor:
Jerzy Karpiuk, Grzegorz Dutkiewicz, Oksana Pietraszkiewicz, Marek Pietraszkiewicz, Teresa Borowiak, Elena Karpiuk
Publikováno v:
Inorganica Chimica Acta. 387:426-430
The first Eu(III) tetraphenylimidodiphosphinate (Eu(tpip)3) ternary complex was synthesized. Addition of a 1,10-phnanthroline co-ligand to the coordination sphere results in dramatic ca. 45-fold luminescence enhancement in comparison with the parent
Autor:
Stanisław Boryczka, Andrzej Maślankiewicz, Maciej Kubicki, Teresa Borowiak, Miroslaw Wyszomirski
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 109:509-514
1H NMR spectral assignment and nuclear Overhauser enhancement studies of 3-[[3-(methylthio)-4-quinolinyl]thio]-4-methoxyquinoline (2) and -4(1H)-quinolinone (3) were carried out. The structure of compound 2a (R = R′ = Me) was also confirmed by X-ra