Influence of Hydroxyl Group Position and Temperature on Thermophysical Properties of Tetraalkylammonium Hydroxide Ionic Liquids with Alcohols

摘要: In this work, we have explored the thermophysical properties of tetraalkylammonium hydroxide ionic liquids (ILs) such as tetrapropylammonium (TPAH) and tetrabutylammonium (TBAH) with isomers butanol (1-butanol, 2-butanol 2-methyl-2-propanol) within temperature range 293.15–313.15 K, interval 5 K over varied concentration ILs. The molecular interactions between ILs are essential for understanding function in related measures excess functions sensitive probe interactions. Therefore, calculated molar volume (VE) deviation isentropic compressibility (Δκs) using experimental values densities (ρ) ultrasonic sound velocities (u) that measured whole compositions at five different temperatures (293.15, 298.15, 303.15, 308.15 313.15 K) atmospheric pressure. These were adequately correlated by Redlich–Kister polynomial equation. It was observed all studied systems, VE Δκs negative composition 293.15 K. And, follows sequence: 2-butanol>1-butanol>2-methyl-2-propanol, which reveals (primary or secondary tertiary) position hydroxyl group influence magnitude contributions from ion-dipole interaction, hydrogen bonding packing efficiency isomers. Hence, plays an important role features alcohols analysed modelling program HyperChem 7.