A controlled spatial distribution of functional units in the two dimensional nanospace of layered silicates and titanates.

The immobilization of functional units in the interlayer spaces of layered silicates and titanates is summarized from the viewpoint of how the spatial distribution of functional units in the interlayer affects the performance of the intercalation compounds. The ways of incorporating controlled amounts of functional units with controlled spatial distribution are also discussed. As a result of controlled spatial distribution of functional units in two-dimensional nanospace, one can achieve improved efficiency of photo-induced events (photoluminescence and photoinduced electron/energy transfer), molecular sieving and substrate/product selective catalytic reactions.