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Mechanistic Studies of Catalytic Polyethylene Chain Growth in the Presence of Water
Author(s) -
Berkefeld Andreas,
Mecking Stefan
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.200601387
Subject(s) - cationic polymerization , monomer , polyethylene , alkyl , polymer chemistry , catalysis , chemistry , diimine , palladium , organic chemistry , polymer
Position blocked? Quantitative studies of polyethylene chain growth in the presence of water by variable‐temperature (VT) 1 H NMR spectroscopy show, unexpectedly, that water can compete with monomer binding at the vacant coordination site in cationic diimine palladium(II) methyl as well as higher alkyl complexes (see scheme); the latter are prepared cleanly as water complexes at T <0 °C.