Synthesis, spectroscopic characterization and acoustic, volumetric, transport and thermal properties of hydroxyl ammonium based ionic liquids

Losetty, Venkatramana; Chennuri, Bharath Kumar; Gardas, Ramesh L.

doi:10.1016/j.jct.2015.09.016

Cited by 25 publications

(6 citation statements)

References 40 publications

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“…It can be seen from Table 4 and Figure 2 that the linear increase in speed of sound values with increasing concentrations of IPH at a given temperature condition and for the same concentration at an elevated temperature occurs because of an enhancement in effective solute−solvent interaction in both systems. 46 3.2.1. Isentropic Compressibility of the Solute.…”

Section: Resultsmentioning

confidence: 99%

Host–Guest Interaction Studies of Isoproterenol Hydrochloride with Β-Cyclodextrin in an Aqueous Medium Probed by Volumetric, Acoustic, and Spectroscopic Approach

Pathania,

Garg

2023

J. Chem. Eng. Data

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In this work, we attempted to analyze thermochemical properties along with a spectroscopy approach to better understand the molecular interactions between β-cyclodextrin (β-CD) and the pharmaceutical compound isoproterenol hydrochloride (IPH) in an aqueous solution at a range of temperatures starting from 293.15 to 313.15 K at an atmospheric pressure P = 0.1 MPa. The volumetric and rheological properties of IPH, such as apparent molar volume and apparent molar isentropic compressibility, with their corresponding limiting parameters in the variable compositions of β-cyclodextrin (0.001, 0.005, and 0.010 mol·kg–1), were enumerated at different temperatures using the measured density and speed of sound measurements. Transfer parameters reveal dominant hydrophilic–hydrophilic interactions in a ternary system. In addition to this, the sign of points toward the structure-breaking characteristics of IPH in the binary and ternary solutions. A proton NMR titration experiment illustrated that IPH was incorporated into a hydrophobic pocket of β-CD with a 1:1 stoichiometry which was confirmed by Scott’s plot, and a binding energy of 22.5 M–1 was found for the IPH−β-CD complex.

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Section: Resultsmentioning

confidence: 99%

Host–Guest Interaction Studies of Isoproterenol Hydrochloride with Β-Cyclodextrin in an Aqueous Medium Probed by Volumetric, Acoustic, and Spectroscopic Approach

Pathania,

Garg

2023

J. Chem. Eng. Data

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“…Similar trend were observed for both ternary systems studied in this work. This kind of trend in the ultrasonic velocity values in any solution with the addition of solute is exhibited by the effective solute–solvent interactions as a result of the greater association of molecules …”

Section: Resultsmentioning

confidence: 99%

“…This kind of trend in the ultrasonic velocity values in any solution with the addition of solute is exhibited by the effective solute−solvent interactions as a result of the greater association of molecules. 31 3.2.2. Isentropic Compressibility.…”

Section: Methodsmentioning

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

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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.

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“…Ionic liquids (ILs) are a class of molten salts that are composed entirely of large organic cations and organic or inorganic anions. Due to their unique properties, such as low melting point (below 373 K), high thermal stability, nonflammability, and negligible vapor pressure, − ILs have been widely employed in numerous fields such as separations, , catalysis, and chemical reactions. , Applications of ILs also have been introduced in electrochemistry, especially related to electrochemical storage , and electrodeposition, owing to their promising special properties, for instance, high electrical conductivity, , suitable electrochemical stability, and large electrochemical window …”

Section: Introductionmentioning

confidence: 99%

Density, Viscosity, and Conductivity of [VAIM][TFSI] in Mixtures for Lithium-Ion Battery Electrolytes

et al. 2020

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A novel unsaturated and amide-based ionic liquid, [VAIM][TFSI] (3-(2-amino-2-oxoethyl)-1-vinylimidazolium bis(trifluoromethylsulfonyl)amide), was synthesized using a two-step method. Its structure was confirmed by nuclear magnetic resonance, and its water content was determined by Karl Fischer titration to be below 0.03 wt %. The density, viscosity, and conductivity of the pure ionic liquid and its binary mixtures with acetonitrile were measured at various temperatures and at ambient pressure. Both the density and viscosity increase with the mole fraction of the ionic liquid and decrease with decreasing temperature. Excess molar volumes and viscosity deviations were calculated from the experimental results. The electrical conductivities in mixtures with different contents of the ionic liquid were investigated at different temperatures. The highest conductivity of binary mixtures is achieved at 0.07 mole fraction, with a value of ∼3.32 S·m–1 at 298.15 K. The conductivity of an electrolyte consisting of acetonitrile, LiTFSI, and the ionic liquid was measured to determine the optimal ionic liquid content. The suggested concentration is 3 wt% ionic liquid in this electrolyte, giving a conductivity of ∼4.11 S·m–1 at 298.15 K.

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Synthesis, spectroscopic characterization and acoustic, volumetric, transport and thermal properties of hydroxyl ammonium based ionic liquids

Cited by 25 publications

References 40 publications

Host–Guest Interaction Studies of Isoproterenol Hydrochloride with Β-Cyclodextrin in an Aqueous Medium Probed by Volumetric, Acoustic, and Spectroscopic Approach

Host–Guest Interaction Studies of Isoproterenol Hydrochloride with Β-Cyclodextrin in an Aqueous Medium Probed by Volumetric, Acoustic, and Spectroscopic Approach

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

Density, Viscosity, and Conductivity of [VAIM][TFSI] in Mixtures for Lithium-Ion Battery Electrolytes

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