文章基本信息

标题：Physico-Chemical Studies on Molecular Interactions of Curcumin with Mono and Divalent Salts at Different Temperature
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作者：Archana Pandey ; Roli Srivastava ; Anil Kumar Shukla 等
期刊名称：International Journal of Smart Home
印刷版ISSN：1975-4094
出版年度：2011
卷号：5
期号：1
出版社：SERSC
摘要：The ultrasonic velocity, density and refractive indices have been measured for systems at 303.15, 308.15, 313.15, 318.15 and 323.15 K. From the experimental data adiabatic compressibility (βs), intermolecular free length (Lf), internal pressure (π), acoustic impedance (Z), molar refraction (Rm), Polarisability, (αp), thermal expansion coefficient (α), Rao’s molar sound function (R), solvation number (Sn) , Relative Association Parameter (RA) have been computed. Excess properties are fitted to Redlich-kister polynomial equation to obtain binary coefficients and the standard errors with main thrust of the study is to correlate the excess properties and the relevant interactions parameters with the nature of molecular interactions between the mixing components at different temperatures. Lorentz–Lorenz equation and Eykman equations are used to estimate thermal expansion coefficient of the systems from their respective experimental densities and refractive indices. The knowledge of refractive index (n), molar refraction (Rm), thermal expansion coefficient (α) and polarizability (αp) are useful for predicting many physico-chemical properties of solutions.
关键词：Molecular interactions; ultrasonic velocity; adiabatic compressibility;intermolecular free length.