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Search results for: TRANSITION METAL COMPLEXES
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Characterization and photocatalytic activity of rare earth metal-doped titanium dioxide
PublicationW publikacji została przedstawiona metoda otrzymywania fotokatalizatorów na bazie TiO2 modyfikowanego erbem i iterbem. Otrzymane nanocząstki zostały scharakteryzowane za pomocą powierzchni właściwej BET, objętości porów. Zostały przedstawione widma absorpcyjne UV-Vis oraz właściwości fluorescencyjne otrzymanych nanoproszków. Dokonano również przedstawienia wyników pomiaru aktywności fotokatalitycznej pod wpływem promieniowania...
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Jurassic–Cretaceous transition in the Transdanubian Range (Hungary): integrated stratigraphy and paleomagnetic study of the Hárskút and Lókút sections
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Excitation energy transfer in partly ordered polymer films differing in donor and acceptor transition moments orientation
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Direction of Changes in the Settlements for Prosumers of Photovoltaic Micro-Installations: The Example of Poland as the Economy in Transition in the European Union
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Short clinically-based prediction model to forecast transition to psychosis in individuals at clinical high risk state
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Patients with type 1 diabetes transition from pediatric to adult care in Poland—an example from Silesia
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Chemical-vapor generation of transition metals through the reaction with tetrahydroborate in recent achievements in analytical atomic spectrometry
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Spectrum of Epithelial-Mesenchymal Transition Phenotypes in Circulating Tumour Cells from Early Breast Cancer Patients
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International conference “Images of Europe in Transition”, Kiev/Ukraine, 25th-26th november 2016 Conference report
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Microscopic 75^As NMR study of the effect of impurities on the first-order spin-density-wave transition in BaFe2As2
PublicationOpisane są wyniki badań NMR na 75^As w monokryształach i próbkach polikrystalicznych BaFe2As2. Zanieczyszczenia cyną wpływają na niskoenergetyczne fluktuacje spinowe i obniżają temperaturę krytyczną ze 138K do 85K.
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Uptake, accumulation, and translocation of Zn, Cu, Pb, Cd, Ni, and Cr by P. australis seedlings in an urban dredged sediment mesocosm: impact of seedling origin and initial trace metal content
PublicationThe study presents results from 6 months of phytoremediation of sediments dredged from three urban retention tanks carried out in a mesocosm setup with the use of P. australis. Two kinds of P. australis seedlings were considered: seedlings originating from natural (uncontaminated - Suncont) and anthropogenically changed environments (contaminated – Scont); this distinction was reflected in the baseline concentrations of trace metals...
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Theoretical study of the structure, energetics and vibrational frequencies of water-acetone and water-2-butanone complexes
PublicationKompleksy acetonu i 2-butanonu z 0-2 cząsteczkami wody połączonymi wiązaniem wodorowym z tlenem karbonylowym zbadano z wykorzystaniem teorii funkcjonału gęstości (DFT) na poziomie B3LYP/6-311++G(d,p). Obliczenia w fazie gazowej uzupełniono o optymalizacje w otoczeniu rozpuszczalnika, symulowanego za pomocą modelu polaryzowalnego kontinuum (PCM). Częstości drgań oscylacyjnych otrzymane na podstawie zależności empirycznej sa zgodne...
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Chromogenic complexes and selective preconcentration of Fe(III) and Cu(II) by hydroxynaphthoyl-1,4,7,10-tetraazacyclododecane derivatives
PublicationSpektroskopowe oznaczanie zawartości jonów żelaza w różnych próbkach środowiskowych jest przedmiotem wieloletnich badań. Pomimo tego ciągle poszukuje się selektywnych odczynników zdolnych do tworzenia kompleksów z jonami żelaza(II) lub żelaza(III). 1,4,7,10-tetraazacyklododekan nie tworzy kompleksów z jonami żelaza, ale wprowadzając stosowne podstawniki można uzyskać właściwe ligandy. W reakcji acylowania otrzymano 1-(1-hydroksy-2-naftoilo)-1,4,7,10-tetraazacyklododekan...
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Effect of novel dinuclear platinum(II) complexes on redox status of MOLT-4 leukemic cells
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The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and monovalent cations
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The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and Li+ cations
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Copper(II) complexes with Fusobacterium nucleatum adhesin FadA: Coordination pattern, physicochemical properties and reactivity
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Reactions of NO2 with chromium(III) complexes with histamine and pyridoxamine ligands studied by the stopped-flow technique
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Spectroscopic, molecular docking and molecular dynamic simulation studies on the complexes of β-lactoglobulin, safranal and oleuropein
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The oxydiacetate and iminodiacetate complexes of oxidovanadium(IV) as the new series of the catalysts for the oligomerization of beta-olefin derivatives
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Trinuclear Complexes Derived from R/S Schiff Bases – Chiral Single‐Molecule Magnets
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Trinuclear Complexes Derived from R/S Schiff Bases – Chiral Single‐Molecule Magnets
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The acid strength of the HF/AlX3 Lewis-Brønsted complexes involving various electron acceptors as ligands
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Physicochemical and Biological Properties of Oxovanadium(IV), Cobalt(II) and Nickel(II) Complexes with Oxydiacetate Anions
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The kinetics of substitution reaction of oxydiacetate and thiodiacetate copper(II) complexes with 1,10-phenanthroline and 2,2’-bipyridine
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Addition of novel benzylmagnesium “ate” complexes of BnR2MgLi type to 2-(thio)pyridones and related compounds
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Charge Transfer, Complexes Formation and Furan Fragmentation Induced by Collisions with Low-Energy Helium Cations
PublicationThe present work focuses on unraveling the collisional processes leading to the fragmentation of the gas-phase furan molecules under the He+ and He2+ cations impact in the energy range 5–2000 eV. The presence of different mechanisms was identified by the analysis of the optical fragmentation spectra measured using the collision-induced emission spectroscopy (CIES) in conjunction with the ab initio calculations. The measurements of...
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The influence of transition metals (Fe, Co) on the structural, magnetic and optical properties of TiO2 nanoparticles synthesized by the hydrothermal method
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Discrimination of Selected Cold-Pressed and Refined Oils by Untargeted Profiling of Phase Transition Curves of Differential Scanning Calorimetry
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Tuning of the phase transition between site selective SCO and intermetallic ET in trimetallic magnetic cyanido-bridged clusters
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Critical behaviour of the smectic A*–C* phase transition and electroclinic effect of ferroelectric liquid crystals with terphenyl rigid core
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Molecular modelling of transition state analogue inhibitors of glucosamine-6-P synthase and glucose-6-P isomerase.
PublicationStruktura kompleksu 2-amino-2-deoksy-D-glucitolo-6-P (ADGP) z centrum aktywnym syntazy GlcN-6-P z E. coli została wykorzystAna jako punkt wyjścia do modelowania molekularnego analogów ADGP. Używając programu GROMOS96 wygenerowano konformacje analogów o najniższych energiach wewnętrznych, które następnie ''dokowano'' w centrum aktywnym enzymu. Dokonano syntezy wybranych związków i określono parametry kinetyczne i termodynamiczne...
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Application of Open-Hardware-Based Solutions for Rapid Transition From Stationary to the Remote Teaching Model During Pandemic
PublicationWhile research indicates usefulness of remote laboratories in teaching of digital hardware systems, their main application is to complement stationary classes. This work presents a low-cost, scalable architecture that supports rapid transformation of teaching to a model based solely on remote access mechanisms. Background: Adaptation of online laboratory solutions from the literature to en-masse teaching of digital circuits is...
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Can Grand Design Doctrines Go Well with Locally Reinvented Urbanisms? Notes from Polish Cities in Transition
PublicationThe text explores how New Urbanism ideas, a comprehensive global design doctrine, transgress into the context of Polish planning practice. New Urbanism is considered through the perspective of the decentralization of a discussion on a planning policy and a modernization of a State, resulting form its post-Socialist urban change. In the text, New Urbanism is understood as a neotraditionalist movement i.e. drawing from the pre-modernist...
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Hybrid electrodes composed of electroactive polymer and metal hexacyanoferrates in non-aqueous electrolytes
PublicationMateriały hybrydowe złożone z polimeru elektroaktywnego poli(3,4-etylenodioksytiofenu) (pEDOT) i heksacyjanożelazianów wybranych metali Mehcf (Me = Fe, Co, Ni) zostały poddane testom w elektrolitach niewodnych składających się z mieszaniny rozpuszczalników węglan etylenu (EC) : węglan propylenu (PC) w stosunku objętościowym 1:1 oraz wybranych soli: KPF6 i LiPF6. Właściwości elektrochemiczne materiałów badane były metodami woltamperometrii...
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Atmospheric heavy metal deposition accumulated in rural forest soils of southern Scandinavia
PublicationPrzeprowadzono obliczenia zakumulowanej ( w okresie 50 lat) atmosferycznej depozycji metali ciężkich na glebach leśnych na obszarach wiejskich. Podstawę do obliczeń stanowiły:- pomiary zawartości metali ciężkich w opadach atmosferycznych (przeprowadzone przez okres 33 lat) na terenie Danii,- europejska baza danych o emisji zanieczyszczeń.Oznaczano zawartość metali ciężkich (Pb, Cd, Cu, Zn, V, Ni, As) w próbkach opadów atmosferycznych...
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Optical and photocatalytic properties of rare earth metal-modified ZnO quantum dots
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Material Balance for Stepwise Extraction of Freshwater Algae Biomass with Heavy Metal Sequestration
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Use of clinoptilolite for the immobilization of heavy metal ions and preparation of autoclaved building composites
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Bottom up approach of metal assisted electrochemical exfoliation of boron towards borophene
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Tuning Carbon Nanotubes Through Poor Metal Addition to Iron Catalysts in CVD
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Hollow carbon sphere/metal oxide nanocomposites anodes for lithium-ion batteries
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Structure Analysis of the Modified Cast Metal Matrix Composites by Use of the Rve Theory
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Cadmium tri-tert-butoxysilanethiolates. Structural and spectroscopic models of metal sites in proteins.
PublicationW publikacji opisano syntezy i struktury dla dwóch heteroleptycznych kompleksów kadmu z rdzeniem CdS2NO2 i CdS2N2. Bis(tri-tert-butoksysilanotiolato)(1-metyloimidazol)kadmu(II) oraz bis(tri-tert-butoksysilanotiolato)bis(1-metyloimidazol)kadmu(II) współistnieją w roztworze chloroformu przy różnych stężeniach Bis(tri-tert-butoksysilanotiolanu) kadmu(II) i 1 metyloimidazolu. Rotzwór ten został scharakteryzowany za pomocą analizy spektralnej...
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Elastic-plastic properties of metal matrix composites: Validation of mean-field approaches
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Heavy-metal tolerance of photobiont in pioneer lichens inhabiting heavily polluted sites
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Novel Photocatalytic Nanocomposite Made of Polymeric Carbon Nitride and Metal Oxide Nanoparticles
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Free-ranging domestic cats are characterized by increased metal content in reproductive tissues
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Removal of metal particles from carbon nanotubes using conventional and microwave methods
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Optical and photocatalytic properties of rare earth metal-modified ZnO quantum dots
PublicationA series of novel ZnO quantum dots modified with rare earth metals was successfully prepared by a simple sol-gel approach. The effects of types (Eu, Er, Tb, Yb, Ho, La) and amounts (from 0.09 to 0.45 mmol) of lanthanides on the optical properties, structural characterization and photocatalytic activity of ZnO/RE QDs were systematically investigated. The X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform...