High-resolution solid-state NMR investigation of the nature of the interaction between organic substrates and the zeolite ZSM-5 lattice

The compounds p-xylene, p-chlorotoluene, and p-dichlorobenzene induce essentially identical changes in the 29Si MAS NMR spectrum of zeolite ZSM-5, indicating that the major contribution to the induced phase change of the lattice structure in these cases is the size and shape of the sorbed organic molecules. Based on these results, p-dichlorobenzene may be used as a model system in future diffraction studies of the sorbate/lattice structure greatly facilitating these investigations.