Characterization of ionic conductivity, viscosity, density, and self-diffusion coefficient for binary mixtures of polyethyleneglycol (or polyethyleneimine) organic solvent with room temperature ionic liquid BMIBF4 (or BMIPF6)

Intermolecular interactions in mixtures of 1-n-butyl-3-methylimidazolium acetate and water: Insights from IR, Raman, NMR spectroscopy and quantum chemistry calculations

“…3a, b. Based on the previously published infrared and Raman spectra [7,10,[15][16][17][18][19][20]34,[64][65][66][67][68][69][70] and quantum chemical calculations [28,64,66,[71][72][73][74][75] of the imidazolium based ionic liquids, we summarize in Fig. 4 the vibration assignment of the pure BmimAc.…”

Influence of LiTFSI Addition on Conductivity, Diffusion Coefficient, Spin–Lattice Relaxation Times, and Chemical Shift of One-Dimensional NMR Spectroscopy in LiTFSI-Doped Dual-Functionalized Imidazolium-Based Ionic Liquids

“…Moreover, the translational diffusion coefficient (D) and spin−lattice relaxation time (T 1 ) of liquids are two of the most important thermophysical properties for investigating the interactions in liquids. 8 PGSE-NMR is an effective method for the analysis of D; this can be attributed to it being able to measure the diffusion coefficients at various temperatures. Furthermore, NMR supplies temperature-dependent T 1 of 1 H and 19 F nuclei for the cations and anions.…”

Impact of polyethyleneglycol addition on diffusion coefficients in binary ionic liquid electrolytes composed of dicationic ionic liquid and polyethyleneglycol

“…Moreover, the addition of PEG200 in neat ILs gives rise to a decrease in density. For instance, PEG200/S1 binary solution ( x PEG200 = 0.4999, ρ = 1.3752 g cm −3 at 303 K) has lower density than that of neat S1 ( ρ = 1.4546 g cm −3 at 303 K); this can be ascribed to PEG200 that shows low density ( ρ = 1.1122 g cm −3 at 306 K) than that of neat ILs.…”