Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 281-300 of 1296
-
Article
Deactivation of Pd/Ce 0.5Zr 0.5O 2 model three-way catalyst by P, Ca and Zn deposition
(2012)The negative effects of P, P-Ca and P-Zn deposition on the surface of a model 1wt% Pd/Ce 0.5Zr 0.5O 2 " three-way" catalyst (TWC) on its structural, morphological, textural, oxygen storage and release, and catalytic ...
-
Article
Decay of the transient CuB-CO complex is accompanied by formation of the heme Fe-CO complex of cytochrome cbb3-CO at ambient temperature: Evidence from time-resolved fourier transform infrared spectroscopy
(2002)Time-resolved step-scan Fourier infrared spectroscopy has been used to study the CO-bound cbb3-type cytochrome c oxidase from Pseudomonas stutzeri at room temperature. We observe a single band in the FTIR spectrum at 1956 ...
-
Conference Object
-
Article
Degradable amphiphilic end-linked conetworks with aqueous degradation rates determined by polymer topology
(2009)Degradable amphiphilic conetworks, based on end-linked amphiphilic ABA triblock copolymers with a labile fragment in the middle, were synthesized by sequential group transfer polymerization (GTP) of monomers and cross-linker, ...
-
Article
A degradable atom transfer radical polymerization inimer: Synthesis, polymerization, and cleavage of the resulting polymer products
(2017)A novel degradable inimer for atom transfer radical polymerization (ATRP), 2-(6-(2-((2-bromo-2-methylpropanoyl)oxy)ethyl)pyridin-2-yl)ethyl methacrylate (PyDEBrMΑ), was synthesized by the two-step esterification of ...
-
Article
Degradable polymer networks and star polymers based on mixtures of two cleavable dimethacrylate crosslinkers: Synthesis, characterization, and degradation
(2009)Mixtures of two cleavable dimethacrylate crosslinkers, the hydrolyzable di(methacryloyloxy-1-ethoxy)methane (DMOEM) and the thermolyzable 1,1-ethylenediol dimethacrylate (EDDMA), were used for the preparation of neat ...
-
Article
The degradation of 4,5-dichloro-1,2,3-dithiazolium chloride in wet solvents
(2009)4,5-Dichloro-1,2,3-dithiazolium chloride 1 (Appel salt) reacts in wet DCM, THF or MeCN to give elemental sulfur, dithiazole-5-thione 4, dithiazol-5-one 5 and thiazol-5-one 6. Furthermore the reaction of 2-phenylthiazol-5(4H)-one ...
-
Article
"Depolymerization" approach in Mn cluster chemistry: Controlled cleavage of a 1D coordination polymer consisting of Mn8 units in its constituent, discrete Mn8 complex
(2010)The cleavage of a 1D coordination polymer (MnII 2MnIII6)n containing recognizable octanuclear units to obtain the discrete MnIIMnIII6 cluster is reported. © 2009 American Chemical Society.
-
Article
Design and Assembly of Covalently Functionalised Polyoxofluorovanadate Molecular Hybrids
(2018)Abstract Mixed-valent polyoxometalate (POM) clusters are one of the most interesting host species, showing a wide range of structural features and properties. The facile preparation and functionalisation of a mixed-valent ...
-
Article
-
Article
Design and synthesis of new nanosized C 3-symmetrical tricarboxylic acids: Key elongated ligands for the preparation of highly porous MOFs
(2015)The synthesis of two new C 3-symmetrical nanosized tricarboxylic acids bearing triphenylmethane cores and three imines linkages is presented. The new elongated tripods were designed to stabilise highly porous metal-organic ...
-
Article
-
Article
Design, synthesis and biological evaluation of benzo[e][1,2,4]triazin-7(1H) -one and [1,2,4]-triazino[5,6,1-jk]carbazol-6-one derivatives as dual inhibitors of beta-amyloid aggregation and acetyl/butyryl cholinesterase
(2012)Alzheimer's disease (AD) onset and progression are associated with the dysregulation of multiple and complex physiological processes and a successful therapeutic approach should therefore address more than one target. Two ...
-
Conference Object
-
Article
Detection of a photostable five-coordinate heme a3-Fe-Co species and functional implications of His384/α10 in CO-bound ba 3-cytochrome c oxidase from Thermus thermophilus
(2004)Resonance Raman (RR) spectra are reported for the fully reduced carbon monoxy derivative of ba3-cytochrome c oxidase from Thermus thermophilus. The RR spectra show the formation of a photolabile six-coordinate heme-CO and ...
-
Article
Detection of the His-heme Fe2+-NO species in the reduction of NO to N2O by ba3-oxidase from thermus thermophilus
(2005)Reaction pathways in the enzymatic formation and cleavage of the N-N and N-O bonds, respectively, are difficult to verify without the structure of the intermediates, but we now have such information on the heme a3 2+-NO ...
-
Article
Determination of aquatic radon by liquid scintillation counting and airborne radon monitoring system
(2008)This paper presents an airborne radon monitoring (RM) system for aquatic radon determination after out-gassing of radon from the aqueous sample and compares this method with the standard ASTM method for radon analysis in ...
-
Conference Object
-
Article
Determination of Quality Properties of Low-Grade Biodiesel and Its Heating Oil Blends
(2018)This research work examined how biodiesel produced from frying oils affects the physicochemical properties of its mixtures with conventional heating oil. Through the characterization of biodiesel blends and heating oil, ...
-
Article
Determination of radium by radon emanation after EDTA-mediated sample dissolution
(2015)The applicability of radon emanation to determine radium levels in (TE)NORM after EDTA-mediated sample dissolution has been investigated by means of a closed recirculating air loop radon monitoring system. Regarding radium ...