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The dinuclear copper complex receptor (R) was synthesized using the ligands 4-(di-ethyl-amino)-2-hydroxybenzaldehyde and benzo [d] thiazol-2-amine. The single crystal X-ray analysis of the homoleptic bis(mu-oxo) dicopper (II) complex indicated that the ligands are coordinated in an anti-configuration to each other and have adopted a distorted square-pyramidal environment around the Cu2+ ion. The X-ray solid state structural analysis and DFT reveals no direct Cu center dot center dot center dot Cu linkage within the complex. The anion recognition ability of the R was studied by UV-vis and fluorescence spectroscopic in acetonitrile. The results indicated that the new complex R displays a sturdy sympathy and selectivity for hydroxide ion. [GRAPHICS] .

Background: Ulcer can be developed inside the inner lining of the stomach (gastric ulcer) or the small intestine (duodenal ulcer). Both the ulcers are also cumulatively referred as peptic ulcers. It affects nearly 10% of world population. Aim: To investigate the antiulcer activity of ethanolic extract of Salvadora indica W. leaves (ESIL) on albino rats. Materials and Methods: The present study was carried by pylorus ligation, ethanol and cysteamine induced ulcer models in albino rats. The antiulcer activity of ESIL (150, 300 and 600 mg/kg p.o. for 7 days) was compared with standard drugs (Ranitidine). In pyloric ligation induced ulcer model, the studied parameters were gastric volume, pH, total acidity, free acidity, and ulcer index whereas in ethanol and cysteamine induced ulcer model, the ulcer index was determined for severity of ulcers. The parameters studied were ulcer index, gastric juice volume, pH, free acidity and total acidity. Results: In pyloric ligation model; the volume of gastric content, total/free acidity and pepsin activity was significantly decreased at p

Nano crystals of &#947-Fe2O3 (maghemite) were synthesized by emulsion precipitation method using kerosene as oil phase, SPAN- 80 (sorbitane monooleate) as the surfactant and sodium hydroxide as the precipitating agent. The characterization of the samples by FTIR (Fourier transform infra-red) and XRD (X-ray diffraction) techniques confirmed the formation of &#947-Fe2O3 (maghemite). Analysis by SEM (scanning electron microscope) and TEM (transmission electron microscope) was carried out to study the morphology and particle size. The as prepared samples contained inverse spinel cubic phase maghemite. Effect of initial iron concentration on crystallite size of maghemite showed that it decreased with the decrease in initial iron concentration. Transformation of &#947-Fe2O3 to &#945-Fe2O3 (hematite) was studied by calcining the precursor in the temperature range of 500 to 850°C. Formation/transformation of phases at different temperatures was confirmed by FTIR and XRD studies. Images, obtained by SEM and TEM showed the morphology and nanocrystal formation of hematite. Room temperature rheological behaviour of the synthesized &#945-Fe2O3 nano powder has been studied. Keywords: Iron oxide, emulsion, nanocrstals, crystal growth, rheological property International Journal of Engineering, Science and Technology, Vol. 2, No. 8, 2010, pp. 118-126

Bismuth is extracted from 0.01M citric acid at pH 3.0 with Aliquat 336S coated on a silica gel column, by extraction chromatography. It was then stripped with 0.1 M sulphuric acid and determined spectrophotometrically at 460 nm as the iodide complex. Bismuth was effectively separated from binary as well as ternary mixtures by taking advantage of the difference in the stability of the citrate complexes with metal ions in mineral acids. The method was extended to the analysis of bismuth from low fusible alloys.