Abstract
Structure and dynamics of chemically modified silica gels have been investigated by high-resolution solid-state NMR spectroscopy. 29Si cross-polarization—magic angle spinning (CP-MAS) NMR spectroscopy yields information on variety and quantity of surface species of both pure silica gel and modified silica gel. 13C CP-MAS NMR spectroscopy reveals dynamic properties of the attached alkyl chains. The data from 29Si and 13C solid-state NMR spectroscopy can be correlated with the separation characteristics in high-performance liquid chromatography.
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