NMR characterization
is performed for the confirmation of the synthesis of imidazole salt.
The acidic proton of the carbene carbon’s resonance frequency
was found around 8–10 ppm, which is one of the distinctive
properties found in the 1H NMR spectra obtained during
ligand analysis. This resonance frequency appeared as a carbene proton
significant feature and was detected at 9.24 ppm. A related pattern
has also been observed in the literature, demonstrating how N-heterocyclic carbene compounds are distinctively correlated
with the appearance of the resonance frequency of the carbene proton.57 13C NMR spectroscopy provided similar
substantial proof of the effective synthesis of the designed salt.
For synthesized salt, the resonance frequency of carbene carbon was
found to be prominently featured, in a range of 135.92 ppm.
is performed for the confirmation of the synthesis of imidazole salt.
The acidic proton of the carbene carbon’s resonance frequency
was found around 8–10 ppm, which is one of the distinctive
properties found in the 1H NMR spectra obtained during
ligand analysis. This resonance frequency appeared as a carbene proton
significant feature and was detected at 9.24 ppm. A related pattern
has also been observed in the literature, demonstrating how N-heterocyclic carbene compounds are distinctively correlated
with the appearance of the resonance frequency of the carbene proton.57 13C NMR spectroscopy provided similar
substantial proof of the effective synthesis of the designed salt.
For synthesized salt, the resonance frequency of carbene carbon was
found to be prominently featured, in a range of 135.92 ppm.
