Solvation behavior of monosaccharides in aqueous protic ionic liquid solutions: Volumetric, calorimetric and NMR spectroscopic studies

Singh, Vickramjeet; Panda, Somenath; Kaur, Harjinder; Banipal, Parampaul K.; Gardas, Ramesh L.; Banipal, Tarlok S.

doi:10.1016/j.fluid.2016.03.016

Cited by 14 publications

(7 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Understanding the dissolution of cellulose is an active topic, involving various experimental tools and molecular modeling. ,− For example, Gentile and Olsson used pulsed field gradient (PFG) nuclear magnetic resonance (NMR) to measure the self-diffusion coefficients in solutions of microcrystalline cellulose and dissolving pulp in aqueous tetrabutylammonium hydroxide (TBAH). It was demonstrated that the TBA + hydrogen ions and the water molecules had a distinct diffusion dependence on the cellulose concentration, indicating quite different molecular interactions with cellulose.…”

Section: Introductionmentioning

confidence: 99%

Microscopic and Macroscopic Properties of Carbohydrate Solutions in the Ionic Liquid 1-Ethyl-3-methyl-imidazolium Acetate

et al. 2018

View full text Add to dashboard Cite

Solutions of glucose, cellobiose, and microcrystalline cellulose in the ionic liquid 1-ethyl-3-methyl-imidazolium acetate ([C2mim][OAc]) have been examined using low-field (20 MHz) NMR relaxometry and rheology. The spin-lattice ( T) and spin-spin ( T) relaxation times have been determined from 30 to 70 °C inclusive, for a range of concentrations (0-15 wt %) of each carbohydrate in [C2mim][OAc]. The zero shear rate viscosities for the same samples across the same temperature range were studied. The viscosity, NMR relaxometry, and previously published diffusion data were all analyzed together through the Debye-Stokes-Einstein equations. Microscopically, these systems behave as an "ideal mixture" of free ions and ions associated with the carbohydrate molecules. The molar ratio of carbohydrate OH groups to ionic liquid molecules, α, is the key parameter in determining the NMR relaxometry and hence the local microscopic environment of the ions. NMR relaxometry data are found to follow an Arrhenius type behavior, and the difference in rotational activation energy between free and associated ions is determined at 6.2 ± 0.5 kJ/mol.

show abstract

Section: Introductionmentioning

confidence: 99%

Microscopic and Macroscopic Properties of Carbohydrate Solutions in the Ionic Liquid 1-Ethyl-3-methyl-imidazolium Acetate

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The evaluated V ϕ o and S v * values with standard errors are positive and expressed in Table S1 of the Supporting Information. The V ϕ o values of D(+)-xylose 12,15,24 and D(−)ribose 15,26,38,39 in water are within the uncertainties. At infinite dilution, as the solute−solute interactions are negligible, the apparent molar volumes at infinite dilutions V ϕ o become the measure of the solute−cosolute interactions only.…”

Section: Partial Molar Volume At Infinite Dilution and Partial Molar ...mentioning

confidence: 60%

“…The speeds of sound and density data of ternary solutions are quite informative in elucidating the characteristics of these solutions, and much work has been done to determine partial molal volumes and partial molal isentropic compressibilities of aqueous mixtures of inorganic salts, − organic salts, − and ionic liquids − with saccharides having biological and industrial importance. The study of solute–solvent interactions between saccharides and electrolytes is very useful for the food industry and pharmaceutical and drug applications where determination of thermodynamic properties and hydration behavior can give big boost to their growth.…”

Section: Introductionmentioning

confidence: 99%

Interactional Behavior and Hydration Characteristics of Polyhydroxysolutes (d(+)-Xylose and d(−)-Ribose) in Aqueous Solutions of Dipotassium Oxalate at Different Temperatures

2021

View full text Add to dashboard Cite

Thermodynamic properties revealing the hydration characteristics and structural effects of saccharides in mixed aqueous solutions generate considerable information for the growth of pharmaceutical and food industries. In this study, the apparent molar volumes, V ϕ , and the apparent molar isentropic compression, K ϕ,s , for monosaccharides (D(+)xylose and D(−)-ribose) within the concentration range 0.1−1.0 mol•kg −1 in 0.0, 0.2, 0.4, and 0.6 mol•kg −1 aqueous solutions of dipotassium oxalate (K 2 C 2 O 4 ) have been calculated from densities and speeds of sound measured at temperatures T = 288. 15, 298.15, 308.15, and 318.15 K and experimental pressure p = 0.1 MPa. Thermodynamic parameters, partial molar volumes, V ϕ o , partial molar volumes of transfer, ΔV ϕ o , partial molar isentropic compression, K ϕ,s o , and partial molar isentropic compression of transfer, ΔK ϕ,s o , and hydration numbers, N w , are also derived for the said monosaccharides. The effect of temperature on these parameters is studied, and further the expansion coefficients, (∂Vϕ 0 /∂T) p , (∂ 2 Vϕ 0 /∂ 2 T) p , and pair (V AB , K AB ) and triplet (V ABB , K ABB ) interaction coefficients are determined for monosaccharides. The results indicate the occurrence of strong solute−cosolute (hydrophilic−ionic and hydrophilic−hydrophilic type) interactions in these systems, which increase with the increasing concentration of saccharides and dipotassium oxalate.

show abstract

“…The volumes and compressibilities are two vital properties that enable the understanding of interactions within solution among solute and solvent molecules. 9 Currently, no thermodynamic, compressibility, or spectroscopic data have been reported on antiarrhythmic drug procainamide hydrochloride. The contributions of structurally similar essential amino acids such as L-alanine and L-valine that influence the interactions of the drug and the medium with respect to temperature are also scarce.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the thermodynamic study of the drug in the aqueous environment of amino acids is crucial. The volumes and compressibilities are two vital properties that enable the understanding of interactions within solution among solute and solvent molecules . Currently, no thermodynamic, compressibility, or spectroscopic data have been reported on antiarrhythmic drug procainamide hydrochloride.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Volumetric and Acoustic Properties of Procainamide Hydrochloride in Aqueous Binary and (Water + Amino Acid) Ternary Mixtures at Different Temperatures

et al. 2017

View full text Add to dashboard Cite

For effective drug design and development, an integrated process utilizing all available information from structural, thermodynamic, and biological studies plays a very important role. To understand the energy basis of molecular interactions utilizing various thermodynamic methods, volumetric and acoustic studies are vital early in the development process of any drug toward an optimal energy interaction profile while retaining a good pharmacological assay. In this article, we are reporting the data of densities (ρ) and speeds of sound (u) of an antiarrhythmic agent, namely, procainamide hydrochloride in an aqueous binary and aqueous solution of amino acids, i.e., l-alanine and l-valine at T = (298.15, 308.15 and 318.15) K. Different thermodynamic parameters such as the apparent molar volume (V ϕ) of the solute, the isentropic compressibility (κs) of the solution, and the apparent molar isentropic compressibility (κϕ) of procainamide hydrochloride in water and aqueous solutions of l-alanine and l-valine have been computed using the density and speed of sound data at different temperatures. The limiting apparent molar volume (V ϕ 0) of solute and the limiting apparent molar compressibility (κϕ 0) of solute in binary and ternary aqueous solutions have been obtained by extrapolating the plots. The results have been interpreted in light of the competing solute–solute and solute–solvent interactions.

show abstract

Solvation behavior of monosaccharides in aqueous protic ionic liquid solutions: Volumetric, calorimetric and NMR spectroscopic studies

Cited by 14 publications

References 61 publications

Microscopic and Macroscopic Properties of Carbohydrate Solutions in the Ionic Liquid 1-Ethyl-3-methyl-imidazolium Acetate

Microscopic and Macroscopic Properties of Carbohydrate Solutions in the Ionic Liquid 1-Ethyl-3-methyl-imidazolium Acetate

Interactional Behavior and Hydration Characteristics of Polyhydroxysolutes (d(+)-Xylose and d(−)-Ribose) in Aqueous Solutions of Dipotassium Oxalate at Different Temperatures

Investigation of Volumetric and Acoustic Properties of Procainamide Hydrochloride in Aqueous Binary and (Water + Amino Acid) Ternary Mixtures at Different Temperatures

Contact Info

Product

Resources

About