A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Thakur, S. D.
- Studies on Interaction between Sm (III) and Nd (III) Metal Ions and Novel Chalcones at 0.1M Ionic Strength pH Metrically
Authors
Source
International Journal of Innovative Research and Development, Vol 4, No 4 (2015), Pagination:Abstract
The interaction of Sm (III) and ND (III) metal ions with 3-Bromo-2-hydroxy-5-Methyl chalcone (L1) and 3-Bromo-(2-hydroxy-5-methyl benzoyl) -4-phenyl-1, 3-butadine chalcones (L2) have been studied in 0.1M ionic strength at 70% Dioxane-water mixture by Bjerrum method as adopted by Calvin and Wilson. It is observed that Sm(III) and Nd(III) metal ions from 1:1 and 1:2 complexes with ligands (L1 & L2). The data obtained were used to estimate and compare the values of proton-ligand stability constant (pk) and metal-legand stability constants (logK). The effect of substituents was studied from estimated data (pK & logK).
- Acoustical Study of Chalcone in Dioxane: Water Mixture in Different Concentrations
Authors
Source
International Journal of Innovative Research and Development, Vol 4, No 2 (2015), Pagination:Abstract
Ultrasonic velocity and density measurement of chalcone - 3-bromo-2-hydroxy-5- methyl-4-chloro chalcone (3B2H5M4C1C) in dioxane-water mixture have been carried out in the concentration range 1x10-2 - 5x10-2 mole dm-3 and in different percentages of dioxane-water mixtures. The experimental data have been used to calculate various acoustical parameters such as adiabatic compressibility (βs), apparent molal volume (ϕv), apparent molal compressibility (ϕk(s)), intermolecular free length (Lf), specific acoustic impedence (Zs) and relative association (RA). The results have been interpreted in terms of solute-solvent and solute-solute interactions.