Zobrazeno 1 - 10
of 98
pro vyhledávání: 'Svoboda, Oldřich'
Autor:
A. Wojciechowski, I.V. Kityk, Vítězslav Zima, Tomáš Mikysek, Nasser AlZayed, Jan Svoboda, Oldřich Pytela, Zdeňka Růžičková, Ludvík Beneš, Daniel Cvejn, Filip Bureš, Klára Melánová
Three push–pull aminopyridine derivatives having D–π–A, D–(π–A)2, and D–(π–A)3 arrangements were examined as model organic chromophores capable of intercalation into inorganic layered materials (alpha modification of zirconium hydrog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4691c72e8ec79cd90b80c06f5bf7f56
https://hdl.handle.net/10195/61954
https://hdl.handle.net/10195/61954
Publikováno v:
Oxidation of Metals. 69:359-374
Surface oxidation of Fe–6Si during annealing in low-pressure air (∼104 Pa) in the temperature range 500–550 °C was investigated using resistivity measurements, Mossbauer spectroscopy, X-ray diffraction and scanning-electron microscopy (SEM). T
Publikováno v:
International Journal of Molecular Sciences, Vol 6, Iss 1, Pp 30-44 (2005)
International Journal of Molecular Sciences
Volume 6
Issue 1
Pages 30-44
International Journal of Molecular Sciences
Volume 6
Issue 1
Pages 30-44
Nine α-alkylstyrenes carrying the following substituents have been synthesised: methyl, ethyl, propyl, butyl, pentyl, isobutyl, isopropyl, sec-butyl and tert-butyl. Kinetics has been measured for the reaction of these compounds with mercuric a
Autor:
Klára Melánová, Petr Knotek, Filip Bureš, Oldřich Pytela, Jan Svoboda, Daniel Cvejn, Ludvík Beneš, Vítězslav Zima, Tomáš Mikysek
Two new intercalates of tris[4-(pyridin-4-yl)phenyl]amine (TPPA) with zirconium hydrogen phosphate and zirconium 4-sulfophenylphosphonate having formulae Zr(HPO4)2·0.21(C33H24N4)·2.5H2O and Zr(HO3SC6H4PO3)(1.3)(C6H5PO3)(0.7)·0.35(C33H24N4)·2.5H2O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a204d2d4dd171a287de8fff7f3fdacb
https://hdl.handle.net/10195/58413
https://hdl.handle.net/10195/58413
Publikováno v:
Materials Science and Engineering: A. 293:215-222
Surface microstructural changes in Fe–28Al and Fe–28Al–5Cr–0.5Nb–0.2C (in at%) alloys during compressive creep tests at 873 and 923 K are investigated by optical and scanning electron microscopy. The differences in microstructure between th
Publikováno v:
Journal of general microbiology. 137(6)
Summary: Mutants of Saccharomyces cerevisiae characterized by osmotic fragility showed a marked fibrillar structure on the inner wall surface when studied by two electron microscopic techniques, i.e. freeze-etching of whole native cells and metal sha
The significance of organometallic chemistry has constantly increased during the second half of this century. The Gmelin Institute recognizes this fact in publishing an entire series on organometallic compounds, listed in the Complete Catalog. Within
Publikováno v:
Collection of Czechoslovak Chemical Communications. 46:2091-2103
Solvent dependence of hydrolysis rate constants of 3-acetyl-1,3-diphenyltriazene (I) and 3-(N-methylcarbamoyl)-1,3-diphenyltriazene (II) has been followed in the solvent mixtures ethanol-water, methanol-water, dioxane-water, and formamide-water withi
Publikováno v:
Collection of Czechoslovak Chemical Communications. 46:1495-1503
The vinylic nucleophilic substitution of methyl trifluoropropenoate (I) with potassium cyanide affords methyl 2,3-difluoro-3-cyanopropenoate (II) in the form of a mixture of cis- and trans-isomers in 95 : 5 ratio. Simultaneously the dimerization of p