Wydział Chemii | Faculty of Chemistry: Ostatnio dodane
Wyświetlanie pozycji 181-196 z 196
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Surface area or diameter – which factor really determines the antibacterial activity of silver nanoparticles grown on TiO₂ coatings?
; ; ; Wrońska, Natalia
; ; ; (The Royal Society of Chemistry, 2014)
Titanium dioxide coatings were prepared on Si wafers using the sol–gel method. Four different types of coatings with silver nanoparticles (AgNPs) were synthesized. The diameter and surface density of AgNPs were conditioned ... -
Studies of the complexation behavior of tetramorpholinylo-PNP-lariat ether with Ag(I), Ca(II), Cd(II), Cu(II) and Pb(II) using Electrospray Ionization Mass Spectrometry
(The Royal Society of ChemistryK. Vekey, J. Chromatogr. A, 2001, 921, 227–236, 2014-12-17)In this publication the cationic metal complexes of tetramorpholinylo-PNP-lariat ether have been studied using electrospray ionization mass spectrometry (ESI-MS). The tandem mass spectra (MS/MS) of these complexes have ... -
Efficient synthesis of pyrene-1-carbothioamides and carboxamides. Tunable solid-state fluorescence of pyrene-1-carboxamides
(The Royal Society of Chemistry, 2014-10-23)Pyrene reacts with potassium thiocyanate and organic isothiocyanates in the presence of trifluoromethanesulfonic acid to afford primary and secondary pyrene-1-carbothioamides in high yields. These compounds were efficiently ... -
A new class of pyrenyl solid-state emitters: 1-pyrenyl ynones. Synthesis via the Friedel–Crafts route, molecular and electronic structure and photophysical properties
(The Royal Society of Chemistry, 2014-06-15)Friedel–Crafts acylation of pyrene with alkynoic acids in the presence of trifluoroacetic anhydride and triflic acid constitutes a direct and efficient route to 1-pyrenyl ynones. These compounds in chloroform solution emit ... -
Synthesis, Chemistry and Applications of 5-Hydroxymethyl-furfural And Its Derivatives
(ARKAT-USA, 2001-08-08)HMF is a good starting material for the synthesis of precursors of various pharmaceuticals, thermo-resistant polymers and complex macrocycles. Among these precursors, one can find 2,5- furandicarbaldehyde and ... -
Addition of Di(trimethylsilyl) Phosphite to Schiff Bases of 2,5-Diformylfuran
(MedJChem, 2011-11)A series of 2,5-Furanyl-bis-(aminomethylphosphonic Acids) has been synthesized by the addition of di(trimethylsilyl) phosphite to azomethine bond of achiral Schiff bases derved from 2,5-diformylfuran. The stereochemical ... -
THE REACTION OF TETRAMETHYLSILANE WITH BORON TRIBROMIDE
(Walter de Gruyter (Previously published by Freund Publishing House Ltd.), 2001-12-01)The reaction of tetramethylsilane with boron tribromide in deuterochloroform in ambient temperature or at 40°C led to bromotrimethylsilane (3) and to dibromomethylborane (4). Identity of products was confirmed by NMR ... -
Electroanalysis of pindolol on a GCE modified with reduced graphene oxide
(Royal Society of Chemistry, 2014)In this work, the application of an innovative, environmentally friendly reduced graphene oxide–glassy carbon (RGO–GC) electrode is described. Using the RGO–GC electrode, basic electrochemical properties (such as the ... -
Voltammetric behaviour and quantitative determination of pesticide iminoctadine
(Royal Society of Chemistry, 2014)Iminoctadine (IOD) was determined in spiked river water samples by square wave voltammetry (SWV) using a cyclic renewable silver amalgam film electrode (Hg(Ag)FE). It was found that the compound can act as an electrocatalyst. ... -
Partial Molar Volumes of 15-Crown-5 Ether in Mixtures of N,N-Dimethylformamide with Water
Tyczyńska, Magdalena; (Springer US, 2014-02-08)
The density of 15-crown-5 ether (15C5) solutions in the mixtures of N,Ndimethylformamide (DMF) and water (H2O) was measured within the temperature range 293.15–308.15 K using an Anton Paar oscillatory U-tube densimeter. ... -
Wstęp do tribologii i tribochemia
(Wydawnictwo Uniwersytetu Łódzkiego, 2005)Materiał niniejszej książki może być wprowadzeniem ułatwiającym zrozumienie tribochemii procesu tarcia. Część pierwsza – Wstęp do tribologii zawiera podstawową wiedzę o tarciu, zużyciu i adhezji powierzchni ciała stałego, ... -
1JCH couplings in Group14/IVA tetramethyls from the gas-phase NMR and DFT structural study: a search for the best computational protocol
(The Royal Society of Chemistry, 2014-05-15)Four tetramethyl compounds EMe4 (E = C, Si, Ge, and Pb) were studied by high-resolution NMR spectroscopy in gaseous and liquid states at 300 K. Extrapolation of experimental vapor-phase C-H J-couplings to a zero-pressure ... -
Conductometric Studies of 1-Ethyl-3-methylimidazolium Tetrafluoroborate and 1-Butyl-3-methylimidazolium Tetrafluoroborate in 1-Propanol at Temperatures from (283.15 to 318.15) K
(Electrochemical Science Group, 2014-03)The electrical conductances of dilute solutions of the ionic liquids 1-ethyl-3-methylimidazolium tetrafluoroborate [emim][BF4] and 1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF4] in 1-propanol have been measured ... -
Carbon-13 longitudinal relaxation time measurements and DFT-GIAO NMR computations for two ammonium ions of a tetraazamacrocyclic scorpiand system
(Springer Netherlands, 2013)Spin-lattice relaxation times, T1s, for 13C nuclei in two cations Hn1n+ (n = 1, 5)of N-(2-amino-ethyl)-cyclam (1, scorpiand) were determined by means of 13C{1H} NMR experiments in aqueous solution at pH 11.5 and 0.2. ... -
Doubly-bridged PNP-lariat ethers and their complexes with silver(I) ions in methanol solution
(The Royal Society of Chemistry, 2013-10-21)We report the preparation of four new double-bridged PNP-lariat etherderivatives L1 – L4 synthesized from precursor 1 by the subsequent substitution of chlorine atoms. The process consists of two steps. In ... -
Matrix isolation and spectroscopic properties of the methylsulfinyl radical CH3(O)S˙
(The Royal Society of Chemistry, 2013-08-15)The atmospherically highly relevant methylsulfinyl radical CH3(O)S˙ was generated thermally under flash pyrolysis conditions and isolated in Ar matrices at 10 K; the allyl radical is a byproduct. CH3(O)S˙ and its D3- and ...