Characterization of Molecular Systems and Monitoring of Chemical Reactions in Ionic Liquids by Nuclear Magnetic Resonance Spectroscopy

Glucosamine condensation catalyzed by 1-ethyl-3-methylimidazolium acetate: mechanistic insight from NMR spectroscopy

“…28,36 As depicted in Fig. S11, a close contact can be visualized between the overlapped peak of GlcNH 2 hydroxyl and amino protons and the CH 3 COO -anions.…”

The First Molecular Level Monitoring of Carbohydrate Conversion to 5‐Hydroxymethylfurfural in Ionic Liquids. B2O3—An Efficient Dual‐Function Metal‐Free Promoter for Environmentally Benign Applications

“…Indeed, the difficulties of obtaining high-resolution NMR spectra in ILs associated with high viscosity, the conductive ionic character of the medium, and absorption of radiofrequencies are well documented. [22][23][24] Applying all the known solutions to the issues related to NMR spectroscopy in ILs did not improve the quality of the spectra of the studied system.…”

Reversible CO2 Capture by Conjugated Ionic Liquids through Dynamic Covalent Carbon–Oxygen Bonds

“…To distinguish the interactions in the [P 66614 ][PNNPhO]-CO 2 complex,n o-deuterium NMR spectroscopy was conducted by adding ac apillary with ad euterated solventt ot he sample to eliminate the effect of the solvent on gas absorption. [14] The no-deuterium 13 CNMR spectra of [P 66614 ][PNNPhO] during the captureo fC O 2 are shown in Figure 3b.T he peak forC 1 upshifted from d = 178.3 to 165.3 ppm (Dd = 13.0 ppm), whereas the peak for C 9 movedd ownfield from d = 159.5 to 160.1 ppm (Dd = 0.6 ppm) upon the uptake of CO 2 .F or [P 66614 ][PhO], the peak for C 1 moved upfield from d = 167.9 to 158.7 ppm (Dd = 9.2 ppm), and the peak for C 9 movedd ownfield from d = 160.0 to 160.2 ppm (Dd = 0.2 ppm) after the capture of CO 2 (Figure S16). Furthermore, with the aid of the no-deuterium quantitative 13 CNMR spectroscopy method, the amount of CO 2 chemisorbed by the IL was determined (Table 1a nd Figure 5).…”