Probing molecular interactions of ionic liquid in industrially important solvents by means of conductometric and spectroscopic approach

Roy, Debadrita; Dewan, Rajani; Ekka, Deepak; Banik, Ishani

doi:10.1016/j.tca.2013.02.022

Cited by 20 publications

(13 citation statements)

References 17 publications

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“…The relatively freer NH 3 + and COO − end Table 1 Standard partial molar volumes (V 2,φ 0 ) and experimental slopes S V for three glycyl dipeptides in aqueous [C n mim]Br (n=10, 14) solutions at different temperatures groups in glycylglycine will cause the maximum volume contraction followed by glycylvaline and least by glycylleucine in which the polar end groups are highly shielded by the bulky group -CHCH 3 CH 3 for electrostriction. Similar results were found for dipeptides in aqueous sodium carboxylate solutions [18][19][20][21] and amino acid in aqueous ionic liquid [5,22], methanoic acid [23], sodium fluoride [24], cetyltrimethylammonium bromide solutions [25], and so on. Furthermore, Fig.…”

Section: Resultssupporting

confidence: 77%

Apparent molar volume, conductivity, and fluorescence studies of ternary systems of dipeptides + ionic liquids ([Cnmim]Br, n = 10, 14) + water at different temperatures

et al. 2015

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Densities, conductivities, and fluorescence spectra of two imidazolium ionic liquids ([C n mim]Br, n=10, 14)-glycyl dipeptide-water mixtures were measured as a function of temperature. The density data have been utilized to calculate the apparent molar volumes, standard partial molar volumes (V 2,φ 0 ), standard partial molar volumes of transfer from water to aqueous ionic liquids solutions (Δ t V°), the hydration number (N H ), partial molar expansibility (E φ 0 ), and Hepler's constant of glycyl dipeptides. Through the electrical conductivity measurements, the c cmc values at different temperatures and a series of thermodynamic parameters (ΔG m o , ΔH m o , and ΔS m o ) of micellization of [C n mim]Br (n=10, 14) in aqueous glycyl dipeptides solutions are evaluated. The pyrene fluorescence spectra were used to study the change of micropolarity produced by the interaction of [C n mim]Br with glycyl dipeptide, and the aggregation behavior of [C n mim]Br (n=10, 14). The results shown above have been explained in terms of solutesolvent interactions and structural changes in the mixed solutions. The interaction between [C n mim]Br (n=10, 14) and glycyl dipeptide is affected by temperature and hydrocarbon chain length of the dipeptides.

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Section: Resultssupporting

confidence: 77%

Apparent molar volume, conductivity, and fluorescence studies of ternary systems of dipeptides + ionic liquids ([Cnmim]Br, n = 10, 14) + water at different temperatures

et al. 2015

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“…This shows that solute solvent interaction increases with increase in number of carbon atoms. Similar conclusion has been reported for glycine in aqueous NH 4 Cl 29 , NaCl-KCl 30 , methanoic acid 31 and glycerol 32 solution as Φv 0 increases with increasing temperature. It can be observed that Φv 0 increase with temperature showing that the reduction of electrostriction occurs at higher temperature.…”

Section: Viscometric Propertiessupporting

confidence: 86%

Volumetric and Viscometric Study of Interactions of Amino Acids in Aqueous Sucrose Solution at Different Temperatures

2013

Chem Sci Trans

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Density and viscosity measurements were performed for amino acids in 0.05-0.25 M aqueous sucrose at 293.15, 303.15 and 313.15 K. The measured values of density and viscosity in a ternary system were used to determine some important parameters, such as the partial molar volume, the transfer partial molar volume, partial molar volume expansibility, viscosity B-coefficient, variation of B with temperature dB/dT and free energy of activation. The results were interpreted in terms of solute-solute and solute-solvent interactions and structure making/breaking ability of solutes in aqueous sucrose solution.

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“…This leads to the fact that lowering of conductance of KClO 4 is found to be highest and lowest for LiClO 4 . The lowest viscosity of N,N-Dimethyl Formamide for KClO 4 also supports the above observation because with lowering of viscosity the Λ o value should increase [17].…”

Section: Conductance Calculationsupporting

confidence: 77%

Physicochemical study of solution behaviour of alkali metal perchlorates prevailing in N,N-Dimethyl Formamide with the manifestation of ion solvation consequences

Roy

Sikdar

2015

Journal of Molecular Liquids

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Probing molecular interactions of ionic liquid in industrially important solvents by means of conductometric and spectroscopic approach

Cited by 20 publications

References 17 publications

Apparent molar volume, conductivity, and fluorescence studies of ternary systems of dipeptides + ionic liquids ([Cnmim]Br, n = 10, 14) + water at different temperatures

Apparent molar volume, conductivity, and fluorescence studies of ternary systems of dipeptides + ionic liquids ([Cnmim]Br, n = 10, 14) + water at different temperatures

Volumetric and Viscometric Study of Interactions of Amino Acids in Aqueous Sucrose Solution at Different Temperatures

Physicochemical study of solution behaviour of alkali metal perchlorates prevailing in N,N-Dimethyl Formamide with the manifestation of ion solvation consequences

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