Reactions of bis(cyclopentadienyl)zirconium dichloride with porous silica surface

A Family of Heteroleptic Titanium Guanidinates: Synthesis, Thermolysis, and Surface Reactivity

“…Preheating the substrate decreases the density of surface hydroxyl sites, limiting the coordination number of the bound product complex. Previous experimental work by Leskelä and co-workers, using NMR and elemental analysis, demonstrated that the silica surface bonding mode of a zirconocene precursor depended on the level of substrate preheating.…”

Chemical Vapor Deposition Methods for the Controlled Preparation of Supported Catalytic Materials

“…Surface reactions between vapors of [ZrCl 2 (η 5 -C 5 H 5 ) 2 ] (temperature of sublimation ) 503 K) and SiO 2 (300-340 m 2 g -1 ) have been studied by preparing different samples by GPI (ALE method) at 573 K, to synthesize heterogeneous metallocene catalysts. 327 The [ZrCl 2 (η 5 -C 5 H 5 ) 2 ] complex reacts mainly with the isolated silanol groups. The effect of dehydroxylation of silica on [ZrCl 2 (η 5 -C 5 H 5 ) 2 ] reactivity has been followed by NMR and FTIR analyses.…”

An investigation of catalyst/cocatalyst/support interactions in silica-supported olefin polymerization catalysts based on Cp*TiMe3*

“…Studies of surface organometallic fragments have shed light on the mechanism and products of grafting metallocenes and related complexes directly onto oxide surfaces [6][7][8][9][10][11]. Although the three-way catalyst-cocatalyst-support interaction is more challenging to address, it may be more relevant to understanding catalytic performance.…”