Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Joanna, Buczyńska"'
Autor:
Joanna Buczyńska, Agnieszka Gajewska, Aleksander Gorski, Barbara Golec, Krzysztof Nawara, Renata Rybakiewicz, Jacek Waluk
Publikováno v:
Chemistry, Vol 3, Iss 1, Pp 104-115 (2021)
A series of free base meso-tetraarylporphyrins functionalized with substituents containing one, two, and four cyclooctatetraene (COT) moieties have been obtained and characterized by spectral and photophysical studies. Three COT-free porphyrins serve
Externí odkaz:
https://doaj.org/article/6a34266f82744878b6bfc4c1f11a5dfd
Publikováno v:
RSC Advances. 12:681-689
The photochemistry of a cyclic β-thioxoketone (2-methyl-1-(2-thioxycyclohexyl)propan-1-one (MTPO)) is investigated by NMR, UV, and IR experiments supported by DFT calculations. MTPO exists as a tautomeric mixture of an enol and a thiol form. Irradia
Autor:
Barbara Golec, Aleksander Gorski, Krzysztof Nawara, Joanna Buczyńska, Renata Rybakiewicz, Agnieszka Gajewska, Jacek Waluk
Publikováno v:
Chemistry
Volume 3
Issue 1
Pages 8-115
Chemistry, Vol 3, Iss 8, Pp 104-116 (2021)
Volume 3
Issue 1
Pages 8-115
Chemistry, Vol 3, Iss 8, Pp 104-116 (2021)
A series of free base meso-tetraarylporphyrins functionalized with substituents containing one, two, and four cyclooctatetraene (COT) moieties have been obtained and characterized by spectral and photophysical studies. Three COT-free porphyrins serve
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:
Joanna Buczyńska, Barbara Dutkiewicz
Publikováno v:
Konteksty Kształcenia Muzycznego. 5:59-73
The use of elements of plastique animée when working with pre‑school children does not produce spectacular effects on an artistic level, though the employment of them has a huge influence on a creative and emotional development of children an
Autor:
Jakub Ostapko, Aleksander Gorski, Joanna Buczyńska, Barbara Golec, Krzysztof Nawara, Anastasiia Kharchenko, Arkadiusz Listkowski, Magdalena Ceborska, Mariusz Pietrzak, Jacek Waluk
Publikováno v:
Chemistry – A European Journal. 26
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:
Krzysztof Nawara, Arkadiusz Listkowski, Jakub Ostapko, Mariusz Pietrzak, Anastasiia Kharchenko, Magdalena Ceborska, Joanna Buczyńska, Aleksander Gorski, Jacek Waluk, Barbara Golec
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 26(70)
Free base and zinc porphyrins functionalized with cyclooctatetraene (COT), a molecule known as a good triplet-state quencher, have been obtained and characterized in detail by structural, spectral, and photophysical techniques. Substitution with COT
Autor:
Jacek Waluk, Grażyna Orzanowska, Barbara Leśniewska, Jakub Ostapko, Michał Kijak, Joanna Buczyńska, Mariusz Pietrzak, Krzysztof Nawara
Publikováno v:
Chemistry - A European Journal. 22:17311-17320
Among seven possible nitrogen-in constitutional isomers of porphyrin only one, porphycene, has been obtained so far in the free, unsubstituted form. Herein, the synthesis of another isomer, parent hemiporphycene (HPc), and its thorough structural, sp
Publikováno v:
Methods and applications in fluorescence. 2(2)
Porphycenes, structural isomers of porphyrins, usually exhibit strong fluorescence in organic solvents. However, in water they are practically insoluble or form only weakly emitting aggregates. We show that embedding porphycenes inside pluronic micel