Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Andrej Staško"'
Autor:
Lucia Rišpanová, Andrej Staško, Peter Rapta, Dana Dvoranová, Michal Malček, Adam Brincko, Sandra Dorotíková, Lukáš Bučinský, Zuzana Barbieriková, Vlasta Brezová
Publikováno v:
Journal of Solid State Electrochemistry. 19:2633-2642
Cyclic voltammetric and EPR/UV-vis-NIR spectroelectrochemical studies were performed to examine the cathodic reduction of 2,6-dichlorophenolindophenolate (DCIP) in proton-donating aqueous and methanol solutions, as well as in aprotic dimethylsulfoxid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4918c94e6cd07c71e18a98994c3602da
https://doi.org/10.1007/s10008-015-2823-x
https://doi.org/10.1007/s10008-015-2823-x
Autor:
Zuzana Barbieriková, Vlasta Brezová, Andrej Staško, Dana Dvoranová, Karol Lušpai, Viktor Milata, Maroš Bella, Vladimír Lukeš, Peter Rapta
Publikováno v:
Journal of Solid State Electrochemistry. 19:113-122
The cathodic reduction of 10-ethyl-7H,10H-pyrido[2,3-f]quinoxalin-7-one (1a) and ethyl 10-ethyl-7-oxo-7H,10H-pyrido[2,3-f]quinoxaline-8-carboxylate (2a), as well as their 2,3-R,R-substituted derivatives (R = CH3 or C6H5), represents a reversible one-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e66c9e54fc1deb86156619e0bf21c1
https://doi.org/10.1007/s10008-014-2625-6
https://doi.org/10.1007/s10008-014-2625-6
Autor:
Andrej Staško, Vlasta Brezová, Dana Dvoranová, Viktor Milata, Jana Semanová, Zuzana Barbieriková, Michal Karabín, Maroš Bella
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 145:1449-1460
The ability of 2,1,3-benzoselena(thia)diazole derivatives to generate paramagnetic intermediates upon monochromatic excitation (λ max = 365 nm) under different experimental conditions was monitored via EPR spin trapping. The photoinduced activation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22e968b846eb0944cfb29400be4c7a38
https://doi.org/10.1007/s00706-014-1236-3
https://doi.org/10.1007/s00706-014-1236-3
Autor:
Peter Fodran, Tibor Dubaj, Mariana Slováková, Vladimír Lukeš, Lukáš Žemlička, Andrej Staško, Tibor Liptaj, Lucia Birošová, Peter Rapta, Adam Vagánek, Michal Karabín
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 145:1307-1318
A simple method for isolation of luteolin-7-O-β-d-glucoside (cynaroside) from a short-lived perennial plant Anthriscus sylvestris (L.) Hoffm. is described. Cynaroside was isolated in high purity as documented by high-performance liquid chromatograph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e003755d3737c23f552f8438580d6711
https://doi.org/10.1007/s00706-014-1228-3
https://doi.org/10.1007/s00706-014-1228-3
Publikováno v:
Magnetic Resonance in Chemistry. 52:22-26
4-Oxoquinoline derivatives (quinolones) represent heterocyclic compounds with a variety of biological activities, along with interesting chemical reactivity. The quinolone derivatives possessing secondary amino hydrogen at the nitrogen of the enamino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6b8266d095c4ea297fb71bf6a8ec5ee
https://doi.org/10.1002/mrc.4029
https://doi.org/10.1002/mrc.4029
Publikováno v:
Journal of Advanced Oxidation Technologies. 19
Application of TiO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2d25ca2ee419a09617dcc58e45ff503
https://doi.org/10.1515/jaots-2016-0213
https://doi.org/10.1515/jaots-2016-0213
Publikováno v:
Chemical Papers. 70
The metallisation of surfaces would be technologically very simple if it were possible to use the properties of the substances that decompose upon UV irradiation and produce species with a strong redox potential. In this work, diazene sulphonates are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::108e41c126caf30efb1e2a1b45d456ed
https://doi.org/10.1515/chempap-2016-0077
https://doi.org/10.1515/chempap-2016-0077
Publikováno v:
Chemical Papers. 70
Diazene sulphonates are readily available compounds which are soluble in water and polar solvents. They strongly absorb the UV-VIS light and they decompose under UV irradiation via radical or ionic intermediates. These properties render them valuable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f94eb8b2f7d0069b526a2b602bfb35b
https://doi.org/10.1515/chempap-2016-0063
https://doi.org/10.1515/chempap-2016-0063
Autor:
Zuzana Barbieriková, Vlasta Brezová, Viktor Milata, Ján Rimarčík, Andrej Staško, Vladimír Lukeš, Maroš Bella
Publikováno v:
Journal of Physical Organic Chemistry. 25:643-648
Photoinduced reactions of 9-oxo-6,9-dihydro[1,2,5]selenadiazolo[3,4-f]quinoline-8-carboxylic acid (SeQCA) were investigated in alkaline media (aqueous NaOH solutions) by electron paramagnetic resonance (EPR) spectroscopy, following the in situ format
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5c8edf3d9f53dead31d125245cba3a2
https://doi.org/10.1002/poc.1955
https://doi.org/10.1002/poc.1955
Autor:
Soňa Jantová, Maroš Bella, Viktor Milata, Tibor Füzik, Jozef Lietava, Vlasta Brezová, Andrej Staško, Zuzana Barbieriková, Dana Dvoranová
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 224:123-134
Derivatives of 1,4-dihydro-4-oxoquinoline substituted at 4-pyridone or/and benzene moieties were synthesized ( Q1 – Q17 ), and characterized by UV/vis and FT-IR spectroscopy. In dimethylsulfoxide and acetonitrile solvents a significant influence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64b0a83bdfba6220b35cb450eedde48b
https://doi.org/10.1016/j.jphotochem.2011.09.015
https://doi.org/10.1016/j.jphotochem.2011.09.015