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Application of Prigogine–Flory–Patterson theory to volumetric, ultrasonic, and compressibility parameters of (glycylglycine+CuCl2) in aqueous ethanol mixtures

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Title: Application of Prigogine–Flory–Patterson theory to volumetric, ultrasonic, and compressibility parameters of (glycylglycine+CuCl2) in aqueous ethanol mixtures
Authors: Santosh, M.S.1, Krishna Bhat, D. kishan@nitk.ac.in
Source: Journal of Chemical Thermodynamics. Sep2011, Vol. 43 Issue 9, p1336-1341. 6p.
Subjects: Patterson function, Volumetric analysis, Ultrasonics, Compressibility, Oligopeptides, Molecular volume, Mixtures
Abstract: Abstract: The molar volume and compressibility of (glycylglycine+CuCl2) in aqueous ethanol mixtures have been obtained at four different temperatures T =(288.15 to 318.15)K from ultrasonic velocity and density measurements. Excess molar volumes were found to be negative throughout the composition range indicating notable changes in hydrogen bonding and electrostatic interactions. Using the Prigogine–Flory–Patterson theory, quantitative estimation of different contributions, i.e. interactional, free volume, and P ∗ effect to V E have been obtained. The molar isentropic compressibility has been computed using the ultrasonic velocity and excess volume data. The trends in are affected by the size of the molecule leading to negative contributions. In order to compare the theoretical values of ultrasonic velocity, the equations of Nomoto and Junjie were used and found to predict the experimental data very well. [Copyright &y& Elsevier]
Copyright of Journal of Chemical Thermodynamics is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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PubType: Academic Journal
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  Data: Application of Prigogine–Flory–Patterson theory to volumetric, ultrasonic, and compressibility parameters of (glycylglycine+CuCl<subscript>2</subscript>) in aqueous ethanol mixtures
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  Data: <searchLink fieldCode="AR" term="%22Santosh%2C+M%2ES%2E%22">Santosh, M.S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Krishna+Bhat%2C+D%2E%22">Krishna Bhat, D.</searchLink><i> kishan@nitk.ac.in</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Chemical+Thermodynamics%22">Journal of Chemical Thermodynamics</searchLink>. Sep2011, Vol. 43 Issue 9, p1336-1341. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Patterson+function%22">Patterson function</searchLink><br /><searchLink fieldCode="DE" term="%22Volumetric+analysis%22">Volumetric analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrasonics%22">Ultrasonics</searchLink><br /><searchLink fieldCode="DE" term="%22Compressibility%22">Compressibility</searchLink><br /><searchLink fieldCode="DE" term="%22Oligopeptides%22">Oligopeptides</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+volume%22">Molecular volume</searchLink><br /><searchLink fieldCode="DE" term="%22Mixtures%22">Mixtures</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: The molar volume and compressibility of (glycylglycine+CuCl2) in aqueous ethanol mixtures have been obtained at four different temperatures T =(288.15 to 318.15)K from ultrasonic velocity and density measurements. Excess molar volumes were found to be negative throughout the composition range indicating notable changes in hydrogen bonding and electrostatic interactions. Using the Prigogine–Flory–Patterson theory, quantitative estimation of different contributions, i.e. interactional, free volume, and P ∗ effect to V E have been obtained. The molar isentropic compressibility has been computed using the ultrasonic velocity and excess volume data. The trends in are affected by the size of the molecule leading to negative contributions. In order to compare the theoretical values of ultrasonic velocity, the equations of Nomoto and Junjie were used and found to predict the experimental data very well. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Chemical Thermodynamics is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jct.2011.04.001
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 1336
    Subjects:
      – SubjectFull: Patterson function
        Type: general
      – SubjectFull: Volumetric analysis
        Type: general
      – SubjectFull: Ultrasonics
        Type: general
      – SubjectFull: Compressibility
        Type: general
      – SubjectFull: Oligopeptides
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      – SubjectFull: Molecular volume
        Type: general
      – SubjectFull: Mixtures
        Type: general
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      – TitleFull: Application of Prigogine–Flory–Patterson theory to volumetric, ultrasonic, and compressibility parameters of (glycylglycine+CuCl2) in aqueous ethanol mixtures
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              M: 09
              Text: Sep2011
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              Y: 2011
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