Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Michał Kijak"'
Publikováno v:
Biuletyn Wojskowej Akademii Technicznej, Vol 70, Iss 3, Pp 15-47 (2021)
The article presents methods of increasing the maximum range of artillery projectiles on the example of 155 mm ammunition. For individual solutions, basic tactical and technical data were characterised with particular emphasis on the method and “co
Externí odkaz:
https://doaj.org/article/1468d74ae756411589acba98489614d1
Autor:
Simon Jaekel, Emile Durant, Monika Schied, Mats Persson, Jakub Ostapko, Michał Kijak, Jacek Waluk, Leonhard Grill
Publikováno v:
Physical Chemistry Chemical Physics. 25:1096-1104
We have studied 22-oxahemiporphycene molecules by a combination of scanning tunneling microscopy at low temperatures and density functional theory calculations. In contrast to other molecular switches with typically two switching states, these molecu
Autor:
Idaresit Mbakara, Agnieszka Gajewska, Arkadiusz Listkowski, Michał Kijak, Krzysztof Nawara, Tatu Kumpulainen, Eric Vauthey, Jacek Waluk
Publikováno v:
Physical Chemistry Chemical Physics. 24:29655-29666
Experiment and theory reveal similarities and differences between porphycenes substituted at the meso position with amino and nitro groups.
Autor:
Jacek Dobkowski, Michał Kijak, Sylwester Gawinkowski, Elena Karpiuk, Mariusz Pietrzak, Igor V. Sazanovich, Jacek Waluk
Publikováno v:
The journal of physical chemistry. A. 126(11)
2,5-Bis(6-methyl-2-benzoxazolyl)phenol (
Autor:
Piotr Ciąćka, Natalia Masiera, Roman Luboradzki, Michał Kijak, Arkadiusz Listkowski, Anastasiia Kharchenko, Piotr Fita, Renata Rybakiewicz, Jacek Waluk
Publikováno v:
ChemPlusChem. 85:2197-2206
Six porphycenes have been synthesized, bearing one, two, or three fluorine atoms attached directly to the 18-π-electron system at the meso positions. These novel compounds have been characterized by structural, electrochemical, and spectral techniqu
Autor:
T. Roliński, Alexander S. Semeikin, Alexandr Gorski, Jacek Waluk, T. V. Lyubimova, Eduard I. Zenkevich, V. N. Knyukshto, Michał Kijak, A. S. Starukhin
Publikováno v:
The Journal of Physical Chemistry. a
The Journal of Physical Chemistry A
The Journal of Physical Chemistry A
Absorption and magnetic circular dichroism (MCD) spectra have been measured and theoretically simulated for a series of palladium octaethylporphyrins substituted at the meso positions with phenyl groups (n = 0–4). Analysis of the spectra included t
Autor:
Joanna Buczyńska, Natalia Urbańska, Jacek Waluk, Michał Kijak, Arkadiusz Listkowski, Marek Pietraszkiewicz, Natalia Masiera, Grażyna Orzanowska, Krzysztof Nawara
Publikováno v:
The Journal of Physical Chemistry A. 124:4594-4604
Two porphycenes, substituted at the meso positions with two and four methyl groups, respectively, reveal similar absorption spectra, but their photophysical properties are completely different. 9,20-dimethylporphycene emits fluorescence with about 20
Autor:
Roman Luboradzki, Michał Kijak, Arkadiusz Listkowski, Patrycja Kowalska, Paweł Jȩdrzejewski, Krzysztof Nawara, Jacek Waluk
Publikováno v:
The Journal of Physical Chemistry A. 123:2727-2733
A porphycene-derived compound with a 20 π-electron skeleton has been obtained by replacing two pyrrolene units of porphycene by pyridine rings. NMR, electronic absorption and MCD spectra, and the lack of fluorescence are typical for 4 N cyclic π el
Autor:
Michał, Kijak, Krzysztof, Nawara, Arkadiusz, Listkowski, Natalia, Masiera, Joanna, Buczyńska, Natalia, Urbańska, Grażyna, Orzanowska, Marek, Pietraszkiewicz, Jacek, Waluk
Publikováno v:
The Journal of Physical Chemistry. a
Two porphycenes, substituted at the meso positions with two and four methyl groups, respectively, reveal similar absorption spectra, but their photophysical properties are completely different. 9,20-dimethylporphycene emits fluorescence with about 20
Autor:
A. Vdovin, J. Lipkowski, A. Listkowski, Anna Grabowska, Jerzy Sepioł, Michał Kijak, Elena Karpiuk
Publikováno v:
Journal of Molecular Structure. 1171:843-849
The new experimental results of the dually emitting ESIPT molecule, the 2,5-bis(2′-benzoxazolyl)hydroquinone (BBHQ) are presented. The results of the XRD analysis are the following: the unit cell of the monoclinic symmetry contains the perfectly pl