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Surface versus Molecular Siloxy Ligands in Well‐Defined Olefin Metathesis Catalysts: [{(RO) 3 SiO}Mo(NAr)(CH t Bu)(CH 2 t Bu)]
Author(s) -
Blanc Frédéric,
Copéret Christophe,
ThivolleCazat Jean,
Basset JeanMarie,
Lesage Anne,
Emsley Lyndon,
Sinha Amritanshu,
Schrock Richard R.
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200503205
Subject(s) - olefin metathesis , catalysis , organometallic chemistry , chemistry , reactivity (psychology) , metathesis , olefin fiber , stereochemistry , organic chemistry , polymerization , polymer , medicine , alternative medicine , pathology
Surface organometallic chemistry : Similar electronic properties of molecular and surface siloxy ligands in 1 m and 1 were revealed by a structural investigation with solid‐state NMR spectroscopy and a reactivity study in olefin metathesis. Despite similar initial turnover frequencies, the silica‐supported catalyst 1 is more stable than 1 m and allows it to achieve higher turnovers, thus showing the advantage of site isolation on surfaces.