Study of imidazolium dicationic ionic liquids by Raman and FTIR spectroscopies: The effect of the nature of the anion

Synthesis, experimental and theoretical vibrational studies of 1-methyl and 1,2-dimethyl, 3-propyl imidazolium bis(trifluoromethanesulfonyl) imide

“…For example, the most intense IR bands at 1051, 1132, 1174, 1226, 1330, 1346 and 1446 cm −1 are common in both ILs, as they are dominated by vibrations of the [(CF 3 SO 2 ) 2 N − ]) anion. [34][35][36][37][38][39] 3.1b The 2800-3400 cm −1 region: In this region, the same absorption bands can be observed in the FTIR/ATR spectra of the two ILs below 3000 cm −1 . The bands at low wavenumber are assigned to CH stretching in the propyl groups.…”

“…These interactions are affected by the presence of [(CF 3 SO 2 ) 2 N − ] anion. 34 The Raman modes at 56 cm −1 and 57 cm −1 are attributed to acoustic excitations, while the mode at 120 cm −1 is assigned to an intramolecular normal mode of [(CF 3 SO 2 ) 2 N − ] anion, and the mode at 204 cm −1 is related to vibrational motion of the imidazolium ring. 34 In the second region between 500 and 1000 cm −1 (Figure 3), small differences around 700 cm −1 are observed between the spectra of the two ILs, which will be further exploited in the subsequent Section 3.3.…”

Calcium alginate beads reinforced with synthetic oligomers, linear polyethylenimine and Cu(II): structural stability and potential applications

“…The last band, found in the oligomers and in the IM spectra, was also assigned to dCH 2 bound to N in disubstituted IM (IM ? ) from ionic liquids (Moumene et al 2015). In addition, the new band at 1030 cm -1 could be assigned to the C( ?…”

Corrosion and hydrogen evolution rate control for X-65 carbon steel based on chitosan polymeric ionic liquids: experimental and quantum chemical studies

“…3,4 Moreover, there is a great interest in ILs as green corrosion inhibitors because of their large number of advantages, such as low toxicity, high thermal steadiness, low volatility, elevated ionic conductivity, and great action as corrosion inhibitors. [5][6][7][8] Among these features of ILs, their very small vapor pressure (will not vaporize), non-polluted environmentally friendly nature are attractive and make them less harmful as metal corrosion inhibitors. The metal corrosion inhibited by PILs is because of their adsorption on the iron surface.…”