Wydział Chemii | Faculty of Chemistry: Recent submissions
Now showing items 161-180 of 204
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The substituent effect on benzene dications
(RSC Publishing, 2014-01-03)It was recently postulated that the benzene ring and its 4n + 2 p-electron analogues are resistant to the substituent effect due to the fact that such systems tend to retain their delocalized character. Therefore, the 4n ... -
Effects of serum proteins on corrosion behavior of ISO 5832–9 alloy modified by titania coatings
(Springer Berlin Heidelberg, 2014-09-26)Stainless steel ISO 5832–9 type is often used to perform implants which operate in protein-containing physiological environments. The interaction between proteins and surface of the implant may affect its corrosive ... -
Structural analysis and corrosion studies on an ISO 5832-9 biomedical alloy with TiO2 sol–gel layers
(Springer, 2013-11-23)The aim of this study was to demonstrate the relationship between the structural and corrosion properties of an ISO 5832-9 biomedical alloy modified with titanium dioxide (TiO2) layers. These layers were obtained via ... -
Synteza fosfonowych pochodnych izoindolinonu
(2015)Przedmiotem niniejszej rozprawy doktorskiej było opracowanie metod syntezy fosfonowych pochodnych izoindolinonu B, w których ugrupowanie fosfonowe połączone jest z pierścieniem heterocyklicznym w pozycji 3 poprzez jeden, ... -
Hetero-Diels–Alder reactions of hetaryl and aryl thioketones with acetylenic dienophiles
(Beilstein Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2015-04-28)Selected hetaryl and aryl thioketones react with acetylenecarboxylates under thermal conditions in the presence of LiClO4 or, alternatively, under high-pressure conditions (5 kbar) at room temperature yielding thiopyran ... -
On the strong difference in reactivity of acyclic and cyclic diazodiketones with thioketones: experimental results and quantum-chemical interpretation
(Beilstein Institute for the Advancement of Chemical Sciences, 2015-04-20)The 1,3-dipolar cycloaddition of acyclic 2-diazo-1,3-dicarbonyl compounds (DDC) and thioketones preferably occurs with Z,Econformers and leads to the formation of transient thiocarbonyl ylides in two stages. The ... -
Densymetryczne i wiskozymetryczne badania hydrofobowej hydratacji wybranych związków organicznych w mieszaninach N,N-dimetyloformamidu z wodą
Tyczyńska, Magdalena
(2015)
W niniejszej pracy doktorskiej przedstawiono rezultaty badań densymetrycznych i wiskozymetrycznych substancji rozpuszczonej (mocznik (U), tetrametylomocznik (TMU), 1,4-dioksan, eter 15-korona-5 (15C5) i eter 18-korona-6 ... -
Elektrody nowej generacji jako narzędzie w woltamperometrycznym oznaczaniu związków biologicznie czynnych
(2015)Głównym celem prowadzonych badań było zastosowanie elektrod stałych nowej generacji, tj. elektrody srebrnej z odnawialnym filmem amalgamatu srebra (Hg(Ag)FE) oraz elektrody diamentowej domieszkowanej borem (BDDE) do badania ... -
The Influence of Protonation on the Electroreduction of Bi (III) Ions in Chlorates (VII) Solutions of Different Water Activity
(Springer, 2015-02-24)We examined the electroreduction of Bi (III) ions in chlorate (VII) solutions under varied protonation conditions of the depolariser using voltammetric and impedance methods. The results of the kinetic parameter correlation ... -
Badania stereochemii addycji H-fosfonianów do chiralnych i achiralnych diimin
(2015)The aim of this study was to investigate the stereochemistry of H-phosphonates addition to several diimins. I concerned on stereoselective aspects of additions to imines bearing (R,R)-1,2-diaminocyclohexane moiety. As ... -
Effects of Constant Magnetic Field on Electrodeposition of Co-W-Cu Alloy
(Electrochemical Science Group, 2015-03-23)The paper presents a study of the effect of constant magnetic field (CMF) on the basic processes of Co-W-Cu alloys electrodeposition. The alloys electrodeposited in the presence of CMF were more homogeneous and smooth ... -
Synthesis and (spectro)electrochemistry of mixedvalent diferrocenyl–dihydrothiopyran derivatives
(Royal Society of Chemistry, 2015-02-20)Three novel diferrocenyl complexes were prepared and characterised. 2,2-Diferrocenyl-4,5-dimethyl- 3,6-dihydro-2H-thiopyran (1, sulphide) was accessible by the hetero-Diels–Alder reaction of diferrocenyl thioketone with ... -
On the strong difference in reactivity of acyclic and cyclic diazodiketones with thioketones: experimental results and quantum-chemical interpretation
(Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2015-04-20)The 1,3-dipolar cycloaddition of acyclic 2-diazo-1,3-dicarbonyl compounds (DDC) and thioketones preferably occurs with Z,Econformers and leads to the formation of transient thiocarbonyl ylides in two stages. The ... -
Interactions of the Gasotransmitters Contribute to Microvascular Tone (Dys)regulation in the Preterm Neonate
(Public Library Of Science, 2015-03-25)Background & Aims Hydrogen sulphide (H2S), nitric oxide (NO), and carbon monoxide (CO) are involved in transitional microvascular tone dysregulation in the preterm infant; however there is conflicting evidence on the ... -
Dendritic glycopolymers based on dendritic polyamine scaffolds: view on their synthetic approaches, characteristics and potential for biomedical applications
(The Royal Society of Chemistry, 2014-12-18)In this review we highlight the potential for biomedical applications of dendritic glycopolymers based on polyamine scaffolds. The complex interplay of the molecular characteristics of the dendritic architectures and their ... -
Why 1,2‑quinone derivatives are more stable than their 2,3‑analogues?
(Springer Berlin Heidelberg, 2015-02-25)In this work, we have studied the relative stability of 1,2- and 2,3-quinones. While 1,2-quinones have a closed-shell singlet ground state, the ground state for the studied 2,3-isomers is open-shell singlet, except ... -
Application of a Graphene Oxide–Carbon Paste Electrode for the Determination of Lead in Rainbow Trout from Central Europe
(Springer, 2014-06-22)In the presented study, the content of lead in rainbow trout (Oncorhynchus mykiss) samples was examined. Rainbow trout were purchased in Prague (Czech Republic), Lodz (Poland) and Bratislava (Slovakia) from local fish shops ... -
Dialkyldithiophosphate Acids (HDDPs) as Effective Lubricants of Sol–Gel Titania Coatings in Technical Dry Friction Conditions
(Springer, 2012)The goal of this study was the investigation of the effectiveness of dialkyldithiophosphate acids (HDDPs) films in improving the tribological properties of thin, sol– gel derived titania coatings. Amorphous, anatase, ...