Surface rhodium siloxide complex

Well-Defined Surface Rhodium Siloxide Complexes and Their Application to Catalysis... 

Scheme 7.4 Formation of surface rhodium siloxide complexes containing phosphine and hydride ligands.

I 7 Well-Defined Surface Rhodium Siloxide Complexes and Their Application to Catalysis Table 7.5 Hydrosilylation of 1-hexadecene and allyl ethers by polyhydrosiloxane (7.1) . 

Characterization of 6 by solid-state NMR spectroscopy as well as elemental analysis (only 28% decrease of rhodium content in samples after 20 cycles in the hydrosilylation) are convincing evidence of the high efficiency of surface rhodium siloxide complexes in the hydrosilylation of carbon-carbon multiple bonds as well as, presumably, in other reactions catalyzed by late transition metal siloxides syn-... 

Scheme 7.2 Reactions of the surface 7t-allyl rhodium siloxide complex with trimethylphosphine.

Scheme 7.3 Reaction of surface Jt-allyl rhodium siloxide complex with carbon monoxide.

Mechanism of Hydrosilylation Catalyzed by Surface versus Soluble Rhodium Siloxide Complexes... 

Scheme 7.6 Oxidative addition of silicon hydride to surface rhodium(diene) siloxide complex 1.

Scheme 7.8 Mechanism of heterogeneous catalysis of hydrosilylation by a surface rhodium (diene) siloxide complex.

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