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Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes
(Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophysical, 2004)
The ultrafine ZnFe2O4, MnFe2O4, and cation deficit Zn-Mn ferrites were obtained by thermal decomposition of appropriate mixed complex compounds with acetylacetone (2,4-pentadione) ligands ([M(AA),]) at 500 degreesC. In ...
Optical and electron paramagnetic resonance spectroscopy of Cd1-xMnxS quantum dots
(Journal of Physics: Condensed Matter, 2004)
Cd1-xMnxS quantum dots (QDs) with diameter d less than or equal to 4.5 nm and with manganese concentrations from x = 0.001 to 0.15 have been prepared using aqueous solution precipitation. Absorption and fluorescence spectra ...
Intermolecular interactions between chelate rings and phenyl rings in square-planar copper(II) complexes
(European Journal of Inorganic Chemistry, 2004)
Analysis of the geometrical parameters in crystal structures of square-planar copper(II) complexes from the CSD shows that the short noncovalent copper (II)-phenyl carbon distances are a consequence of the interaction ...
A study of misleading effects of HCl treatment in the characterization of sulfur in coal
(Energy and Fuels, 2004)
The purpose of this study was to determine the cause of the experimentally noticed decrease of sulfate sulfur during a thermal treatment of coal. In the case of the pyrolysis of the investigated six coals of different rank ...
C-H center dot center dot center dot pi interactions in the metal-porphyrin complexes with chelate ring as the H acceptor
(Journal of Inorganic Biochemistry, 2004)
Specific C-H(...)pi interactions with the pi-system of porphyrinato chelate ring were found in crystal structures of transition metal complexes from the Cambridge Structural Database and statistical analysis of geometrical ...
Spin glass formation in Li-substituted Co2TiO4 spinel
(Journal of Physics: Condensed Matter, 2004)
DC magnetization and AC susceptibility measurements point to the formation of a spin glass state in the ternary spinel-type compounds Li1.33xCo2-2xTi1+0.67xO4. The dynamics of spin freezing was analysed with both the ...
Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine
(Reactive and Functional Polymers, 2004)
Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and modified by ...
Photoacoustic study of CO2-laser coincidences with absorption of some organic solvent vapours
(Analytica Chimica Acta, 2004)
Detection of specific molecules in the atmosphere is motivated by the need for monitoring the emission of industrial pollutants. CO2-laser photoacoustic (PA) spectroscopy was used here to obtain coincidence spectra of the ...
Recent results with the mVINIS ion source
(Review of Scientific Instruments, 2004)
The mVINIS ion source is a part of the TESLA Accelerator Installation, in Belgrade. It is an ECR ion source used as a stand-alone machine delivering multiply charged ion beams to a low energy experimental channel for ...
Scaling properties in single collision model of light ion reflection
(Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2004)
Light ion reflection from solids in the keV energy region has been studied within the single collision model. Particle and energy reflection coefficients as functions of the scaled transport cross section have been calculated ...