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Molecular interactions of glycine and L-alanine + citrate buffer solutions at different temperatures: Volumetric, viscometric, and FTIR approach

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Title Molecular interactions of glycine and L-alanine + citrate buffer solutions at different temperatures: Volumetric, viscometric, and FTIR approach
 
Creator Patyar, Poonam
Kaur, Gurpreet
 
Subject Amino acids
Citrate buffer
Partial molar volume
Viscosity B-coefficients
Activation free energies
 
Description 482-496
Densities,๐œŒ, and viscosities,๐œ‚of glycine/L-alanine in water and in (0.10, 0.50, 1.00) molโˆ™kgโˆ’1 aqueous trisodium citratebuffer (Na3CB) solutions of pH 7.40 at T = (298.15 to 318.15) K have been measured by using vibrating tube digital density meter and suspended level Ubbelohde capillary viscometer, respectively, at atmospheric pressure i.e.101.3 kPa. Thermodynamic parameters, i.e., ๐œ™๐‘ฃ๐‘œ, ฮ”๐‘ก๐‘Ÿ๐œ™๐‘ฃ, viscosity B-coefficients, and ฮ”๐‘ก๐‘Ÿ๐ต obtained from density and viscositymeasurements have been used to unravel predominant forces among glycine/L-alanine and aqueous Na3CB solutions. Activation free energies, ฮ”๐œ‡2๐‘œ# for the viscous flow of solutions, have been obtained by applying transition state theory to theviscosity B-coefficients values. The results are further supported by FTIR studies for glycine/L-alanine in water and aqueous Na3CB solutions of pH 7.40, revealing the intermolecular hydrogen bonding in these systems. Moreover, the results obtained from volumetric, viscometric, and spectroscopic studies provide valuable information on intermolecular interactions, influencing their efficacy in biological applications.
 
Date 2022-05-31T07:01:01Z
2022-05-31T07:01:01Z
2022-05
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/59819
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC Vol.61(05) [May 2022]