Thiazolidinones: An Ultrasonic Study in DMF Solutions

Author(s):  
Shipra Baluja

Some new thiazolidinone derivatives are synthesized and their \acoustical properties are studied in dimethylformamide at 298.15 K. The evaluated properties are interpreted in terms of molecular interactions occurring in solutions. It is observed that in DMF, for all the derivatives, solute-solvent interactions dominate

2020 ◽  
Vol 10 (2) ◽  
pp. 5259-5265

The densities (ρ), and ultrasonic velocities (u) of 1-Butyl-2, 3-dimethylimmidazolium chloride,[bdmim]Cl in aqueous solutions of Tetra-n-butyl ammonium bromide over the complete range of concentrations has been calculated at different temperatures T= (298.15 to 313)K. Experimentally obtained values of ρ and u were used to calculate the parameters like acoustic impedance (Z), isentropic compressibility (βS), molar sound velocity (Rao’s constant) (R), molar compressibility (Wada’s constant)(W), intermolecular free length (Lf), co-efficient of thermal expansion (α), heat capacity ratio (γ), isothermal compressibility (βT) and nonlinearity parameters (B/A). The final results obtained were analyzed to understand the ion-solvent and ion-ion interaction so taking place in the solutions. Further, the effect of temperature on the ion solvent interactions was discussed. Ion-solvent interactions are affected by the thermo acoustical properties and by nonlinear parameters.


2021 ◽  
Vol 12 (3) ◽  
pp. 3956-3965

Understanding possible interactions of drugs and the factors that command such interactions could be helpful to control their disadvantageous effects upon human health. In this study, volumetric properties for the solution of diclofenac potassium (DP), a non-steroidal anti-inflammatory drug (NSAID), were investigated for the first time to look into its molecular interactions at four different temperatures varying from 298.15 K to 313.15 K at 5 K intervals in water as well as aqueous hydrotropic agent urea (1M) solutions. Experimental density data obtained using a pycnometer have been taken to estimate apparent molar properties, i.e., limiting apparent molar volume (〖V_ɸ〗^0), apparent molar volume (V_ɸ), limiting apparent molar expansibility (〖E_ɸ〗^0) and apparent molar expansibility (E_ɸ). The results obtained were discussed in terms of solute-solvent and solute-solute interactions in the studied systems. The obtained results from volumetric data were explored in terms of the existence of solute-solvent interactions in aqueous systems of drug solutions.


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