Mesostructures organically functionalized

Chapter VI of the proceedings deals with silicon-based materials. F. Schuth gave an impressive overview on Mesostructured Silica and Organically Functionalized Silica — Status and... 

Mesostructured Silica and Organically Functionalized Silica — Status and Perspectives... 

Pure mesoporous silicas have little or no intrinsic catalytic activity, but catalytic centers can be introduced by grafting organic ligands onto the framework walls" or by incorporating metal ions into the framework12,13. Ti-functionalized derivatives are especially effective in demonstrating the importance of framework access in determining the catalytic activity of a mesostructure. 

The properties of metal and semiconductor nanocrystals are briefly reviewed. The organization of metal and semiconductor nanocrystals into mesostructures is an important aspect of nanoscience. New methods of nanocrystal synthesis and functionalization relevant to mesoscopic assembly are described, with emphasis on procedures that deal with monodispersed nanocrystals. Programmed assemblies of nanocrystals in one, two and three dimensions are discussed together with attempts to measure the properties of such lattices. Future directions and potential applications of ordered assemblies are indicated. 

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