What Information Can Be Gleaned from ²â¹Si NMR Spectra?
²â¹Si NMR spectra provide several key pieces of information: - Chemical Shifts: These shifts indicate the electronic environment of silicon atoms and can be correlated to different types of siliceous frameworks or functional groups. - Peak Intensities: The relative intensity of peaks can provide quantitative information about the different silicon environments within a sample. - Line Shapes: The line shapes and widths can reveal information about the dynamics and disorder within the material.