Decoding catalytic activity of platinum carbene hydrosilylation catalysts

Experimental and computational tuning of metalla-N-heterocyclic carbenes at palladium(ii) and platinum(ii) centers

“…Although the exact reasons for the increased catalytic activity of mesityl carbene species require further studies, some first attempts suggest the optimum combination of donor and steric properties of these derivatives. 55…”

Synthesis of Single Atom Based Heterogeneous Platinum Catalysts: High Selectivity and Activity for Hydrosilylation Reactions

“… 3 , 4 Furthermore, organosilicon compounds are of interest for the design of novel catalysts, defense materials and life science products. In general, catalytic hydrosilylations are performed using molecularly defined (pre)catalysts containing mainly Pt, 5 , 6 but also Ru, 7 , 8 Pd, 9 and Rh. 10 , 11 In fact, some of these reactions constitute the largest-scale examples of homogeneous catalysis with noble metals.…”

“…Olefin hydrosilylation is an important process to form alkylsilanes by catalytic addition of Si–H bonds to olefins. , The resulting products find widespread application in the manufacture of silicone-based aerogels, surfactants, release coatings, lubricants, and adhesives. , Furthermore, organosilicon compounds are of interest for the design of novel catalysts, defense materials and life science products. In general, catalytic hydrosilylations are performed using molecularly defined (pre)­catalysts containing mainly Pt, , but also Ru, , Pd, and Rh. , In fact, some of these reactions constitute the largest-scale examples of homogeneous catalysis with noble metals. Nowadays, platinum-based complexes such as Speier’s and Karstedt’s catalysts formed by reaction of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane with chloroplatinic acid and PtCl 2 (cyclooctadiene) are the most extensively used industrial catalysts, despite the cost of the precious metal.…”

Synthesis and characterization of Pd/NHCF complexes with fluorinated aryl groups

“…13 Kühn and co-workers hypothesized that the π-acceptor nature of the aryl group is critical for increasing the reactivity of catalysts and the studied complexes of platinum( ii ) with a polyfluoroaromatic substituent on the imidazole ring in the hydrosilylation reaction. 14 Che and co-workers and Strassner's group investigated the physicochemical properties of Pt( ii )/NHC complexes on similar compounds with a fluorine atom in the aryl substituent. The authors showed that complexes with fluorine have efficient light blue to dark blue emission with quantum yields up to 92%.…”