A new series of organotellurium compounds based on quinoline were prepared by the reaction of 8-(quinolyl)mercuric chloride (1) with tellurium tetrabromide in 1:1 and 1:2 mole ratio in dry dioxane to obtain 8-(quinolyl)tellurium tribromide (2) and bis [8-(quinolyl)]tellurium dibromide (3), respectively, in good yields. Reaction of compounds 2 and 3 by ethanolic hydrazine hydrate gave bis [8-(quinolyl)]ditelluride (4) and bis [8-(quinolyl)]telluride (5), respectively, in moderate yields. Furthermore, the ligand properties of bis [8-(quinolyl)] telluride (5) will be carried out with K2PtCl4, Na2PdCl4 and RhCl3.3H2O. All compounds were characterized by spectroscopic data and elemental analysis.
Flame atomic absorption spectrometric determination of magnesium in whole blood and serum of ischemic heart disease patients and control with different ages and sex was proposed. The limiting interfering phosphate/magnesium ratio have been estimates. 2% w/v AlCl 3 ·6H 2 O was found to be very influential in removing phosphate interference effects. The detection limit was 0.065 μg/ml. Magnesium added to blood and serum sample, and carried through this method may be recovered completely (96% -100%) recovery percentage. The suggested method is simple, fast and selective. The statistical analysis of magnesium levels in blood and serum showed that blood and serum magnesium levels in patients were lower than magnesium contents of control group. Magnesium levels in blood and serum of males were significantly higher than females and the magnesium levels were age independent. These findings indicate that there was an association between blood and serum magnesium deficiency which can induce an entire array of path physiological phenomena known to be important in ischemic heart disease.
A new method for preparing 1,5-diphenylselenocarbazone (selenazone) nanoparticles and their complexes with Pb2+, Cd2+, Co2+, and Ni2+ has been performed using hot methanol solvent. The ligand and its complexes were characterized using FT-IR, UV-Vis, 1H-NMR, 13C-NMR, X-ray powder diffraction (XRD), EI-mass spectrometry, scanning electron microscopy (SEM), HG and flame-atomic absorption spectrophotometer, thermal analysis (TG/DTA), and molar conductance measurements. The molar conductance measurements in all complexes were recorded low values in DMSO, indicating that all the metal complexes were non-electrolytes except the nickel complex that possessed an electrolytic nature. Kinetic and thermodynamic parameters of complexes (A, E, ∆H, ∆S, and ∆G) have been computed using three kinetic models of Coast-Redfern, Broido, and Horowitz-Metzger, that illustrated the decomposition reactions in all steps were nonspontaneous. Thermogravimetric analyses (TG/DTA) were consistent with the atomic spectroscopy data proving that the geometry shape of all the complexes was octahedral.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.