Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Volha Vetokhina"'
Autor:
Alexandr Stupakov, Tomáš Kocourek, Volha Vetokhina, Joris More-Chevalier, Hana Chmelíčková, Alexandr Dejneka, Marina Tyunina
Publikováno v:
Materials Research Bulletin. 165:112305
Autor:
Natalia Nepomniashchaia, Volha Vetokhina, Dagmar Chvostova, Zdenek Bryknar, Alexandr Dejneka, Marina Tyunina
Publikováno v:
Optical Materials Express. 12:3081
The optical constants and dielectric function of (001) LaAlO3 crystal were investigated at low temperatures down to 10 K in the NIR-VUV spectral range (photon energies 0.8-8.8 eV). Reflection variable angle spectroscopic ellipsometry and transmission
Autor:
Jacek Waluk, Jerzy Herbich, Mariusz Pietrzak, Volha Vetokhina, Jacek Nowacki, Andrzej L. Sobolewski, Michał F. Rode
Publikováno v:
The Journal of Physical Chemistry A. 117:9127-9146
Ground- and excited-state long-range prototropic tautomerization were studied for a series of 7-hydroxyquinoline-8-carbaldehydes (7-HQCs) by (1)H and (13)C NMR spectroscopy, photostationary and time-resolved UV-vis spectroscopic methods, and quantum
Autor:
Jacek Waluk, Volha Vetokhina, Sławomir Szymański, Jarosław Jaźwiński, Mariusz Pietrzak, Henning Hopf, Taye B. Demissie, Kenneth Ruud, Helena Dodziuk
Publikováno v:
The journal of physical chemistry. A. 120(5)
Extending our earlier studies on cyclophanes, we here report the structure, chemical shifts, spin-spin coupling constants, absorption and emission properties of [m.n]paracyclophanes, m, n = 2-4, obtained using a combination of experimental and comput
Autor:
Izabela Kaminska, Krzysztof Dobek, Jacek Waluk, Jerzy Herbich, Michał Kijak, Werner R. Thiel, Keven Muller, Volha Vetokhina
Publikováno v:
ChemPhysChem. 13:3661-3671
Studies of 2-(1H-pyrazol-5-yl)pyridine (PPP) and its derivatives 2-(4-methyl-1H-pyrazol-5-yl)pyridine (MPP) and 2-(3-bromo-1H-pyrazol-5-yl)pyridine (BPP) by stationary and time-resolved UV/Vis spectroscopic methods, and quantum chemical computations
Publikováno v:
Bulletin of the Chemical Society of Japan. 82:1514-1519
The reaction of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) with compounds possessing two vicinal chlorine atoms activated toward nucleophilic substitution has been studied. All derivatives bearing a ...
Autor:
Michał Kijak, Barbara Golec, Aleksander Gorski, Jacek Waluk, Jerzy Herbich, Randolph P. Thummel, Volha Vetokhina
Publikováno v:
The journal of physical chemistry. B. 119(24)
Molecules that can simultaneously act as hydrogen bond donors and acceptors often exhibit completely different photophysical behavior in protic and aprotic solvents. Formation of multiple hydrogen bonds with, for example, water or alcohols, may lead
Autor:
Jacek Waluk, Jerzy Herbich, Andrzej L. Sobolewski, Michał F. Rode, Jacek Nowacki, Volha Vetokhina, Mariusz Pietrzak
Publikováno v:
The journal of physical chemistry. A. 117(38)
Prototropic equilibria were studied for a series of 7-hydroxyquinoline-8-carbaldehydes (7-HQCs) by (1)H NMR spectroscopy, photostationary and time-resolved UV-vis spectroscopic methods, and quantum chemical computations. These molecules represent tri
Autor:
Volha Vetokhina, Michał Kijak, Randolph P. Thummel, Teodozja Marianna Lipinska, Jacek Waluk, Jerzy Herbich, Jerzy Sepioł
Publikováno v:
The journal of physical chemistry. A. 117(23)
We report spectroscopic and photophysical studies of a series of selected indole derivatives in solutions and under supersonic jet isolation conditions. All the compounds can assume two rotameric forms, syn and anti. The bifunctional molecules contai
Autor:
Volha Vetokhina, Jacek Waluk, Jerzy Herbich, Gabriela Wiosna-Sałyga, Michał Kijak, Randolph P. Thummel
Publikováno v:
Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology. 9(7)
Three isomeric 4'-pyridyl-substituted indoles, with the substituent in positions 2, 3 and 7, reveal strong fluorescence in aprotic solvents, both polar and nonpolar, whereas the emission is strongly quenched in water and alcohol solutions. Both visco