کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5409105 | 1506535 | 2017 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acoustical studies of synthesized α,β-unsaturated ketones in ethanol and different percentage composition of DMSO in ethanol
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
In the present investigation chalcones were synthesized by aldol condensation of acetophenone with aromatic aldehyde in basic medium and products were characterized by 1H NMR and 13C NMR spectra. These synthesized chalcones were then dissolved in pure ethanol and ethanol solutions containing 10%, 30% and 50% dimethyl sulphoxide (DMSO) to obtain binary and ternary solutions of various concentrations. Density, Ï, viscosity, η and speed of sound, u of these solutions were measured over a wide range of temperature (298.15 K to 308.15 K). Various acoustical parameters like adiabatic compressibility, intermolecular free length, acoustic impedance, relaxation time and free volume have been evaluated by using the measured values of density, viscosity and speed of sound. The obtained results are interpreted in terms of molecular interactions that give us an idea of structure-making or structure-breaking ability of solute molecules in different solvents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 236, June 2017, Pages 422-434
Journal: Journal of Molecular Liquids - Volume 236, June 2017, Pages 422-434
نویسندگان
Neha Sawhney, Mukesh Kumar, Roshan Lal, Amit K. Sharma, Meena Sharma,