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@inproceedings{Tomov:2011,
author = {Tomov, AK and Nobbs, JD and Britovsek, GJ and Gibson, VC},
pages = {INOR--529},
publisher = {American Chemical Society},
title = {Alternating α-olefin distributions in chromium-catalysed ethylene oligomerisation.},
year = {2011}
}

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TY  - CPAPER
AB  - The last two decades have witnessed tremendous advances in catalyst development for the selective oligomerisation of ethylene.1 The Cossee-type chain growth mechanism results, in the absence of chain termination reactions, in a Poisson distribution of products (e.g.  Alfen process).  A combination of chain propagation and chain termination, for example β-H transfer, results in a Schulz-Flory distribution of α-olefins, (e.g.  Shell Higher Olefin Process).  An alternative chain growth mechanism based on the formation of metallacycles has enabled the selective trimerisation and tetramerisation of ethylene or the formation of higher oligomers.  We have previously communicated an exceptionally active chromium-based catalyst supported by a tridentate bis(benzimidazolyl)amine ligand that affords a previously unobserved alternating α-olefin distribution, as shown below.2 Further studies on this remarkable catalyst system as well as mechanistic implications for olefin polymn. catalysis will be presented.  Refernces 1)McGuinness, D.  Rev., 2011, 111 ,2321.  2)Tomov, A.K.; Chirinos, J.J.; Long, R.; Gibson, V.C.; Elsegood.  2006, 128, 7704. [on SciFinder(R)]
AU  - Tomov,AK
AU  - Nobbs,JD
AU  - Britovsek,GJ
AU  - Gibson,VC
EP  - 529
PB  - American Chemical Society
PY  - 2011///
SP  - 529
TI  - Alternating α-olefin distributions in chromium-catalysed ethylene oligomerisation.
ER  -

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