Experimental evidence for large ring metallacycle intermediates in polyethylene chain growth using homogeneous chromium catalysts.
Deuterio-ethylene labeling studies on two homogeneous chromium ethylene oligomerization catalysts show that chain propagation proceeds via metallacyclic intermediates; reactions performed in the presence of 1-nonene show no incorporation of the higher olefin, strongly implicating the involvement of large ring metallacycles.
Tomov
Atanas K
AK
Imperial College London, South Kensington Campus, London SW7 2AY, UK.
Chirinos
Juan J
JJ
Jones
David J
DJ
Long
Richard J
RJ
Gibson
Vernon C
VC