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Cyclophane‐Based Highly Active Late‐Transition‐Metal Catalysts for Ethylene Polymerization
Author(s) -
Camacho Drexel H.,
Salo Eric V.,
Ziller Joseph W.,
Guan Zhibin
Publication year - 2004
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.200353226
Subject(s) - cyclophane , thermal stability , polymerization , catalysis , ligand (biochemistry) , ethylene , polymer chemistry , polyethylene , chemistry , transition metal , metal , materials science , photochemistry , organic chemistry , molecule , polymer , biochemistry , receptor
Better by design : Exploitation of the macrocyclic architecture of a cyclophane‐based ligand provides new highly active catalysts with improved thermal stability for ethylene polymerization. The strategic positioning of the metal center at the core of the cyclophane‐based ligand is the key to the observed high activity and thermal stability, and to the high molecular weight of the polyethylene (see picture; red: Pd, green: Cl, blue: N, gray: C).