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Investigation of Steric and Electronic Factors of (Arylsulfonyl)phosphane‐Palladium Catalysts in Ethene Polymerization
Author(s) -
Piche Laurence,
Daigle JeanChristophe,
Poli Rinaldo,
Claverie Jerome P.
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000533
Subject(s) - chemistry , steric effects , palladium , catalysis , pyridine , polymerization , yield (engineering) , medicinal chemistry , polymer chemistry , polymer , ligand (biochemistry) , stereochemistry , organic chemistry , biochemistry , materials science , receptor , metallurgy
(Arylsulfonyl)phosphane ligands, o ‐Ar 2 PC 6 H 4 SO 3 H in which Ar is phenyl (Ph), naphthyl (Np), phenanthryl (Pa), or anthracenyl (An) were prepared. These bulky phosphanes were used to generate phosphanepalladium complexes [( o ‐Ar 2 ‐PC 6 H 4 SO 3 )PdMe(pyridine)]. These complexes catalyze ethene polymerization and yield linear polyethene. The catalytic activity of these compounds and the molecular weight of the polymer decreases in the following order: Ph > Np > Pa > An, which corresponds to increasing cone angles and decreasing basicity.