SOLID-STATE NMR-STUDIES OF SUPPORTED ORGANOMETALLICS

Solid-state nuclear magnetic resonance spectroscopy has been increasin gly applied for characterization of supported organometallic complexes . Whereas early studies focused on highly mobile physisorbed species, the development of high-resolution solid-state techniques has extended NMR studies to less mobile chemisorbed complexes. In addition to iden tification of surface species, solid-state NMR has yielded information concerning mobility, the nature of the bonding to the surface, and ev en the active sites in catalytic reactions of supported organometallic complexes. When coupled with other characterization methods, NMR has proven to be an effective probe of surface organometallic structure. S olid-state NMR studies of the following systems are reviewed: ligand a ttached metal complexes, supported metal carbonyls and olefins, suppor ted organoactinides and zeolite encapsulated organometallics.