fulltext.study @t Gmail

Evaluation of mid-to-late transition metal imine catalysts for acetylene oligomerisation: A high activity bis(imino)pyridine iron(II) catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
55642 47060 2011 8 PDF Available
Title
Evaluation of mid-to-late transition metal imine catalysts for acetylene oligomerisation: A high activity bis(imino)pyridine iron(II) catalyst
Abstract

Bis(imino)pyridine complexes of Co and Fe, and diimine complexes of Ni and Pd, have been tested as catalysts for acetylene oligomerisation and polymerisation. While Co, Ni and Pd complexes displayed low activity, an Fe complex led to an extremely active system for acetylene polymerisation after activation with methylaluminoxane (MAO). The product output could be shifted towards short-chain oligomers by addition of the chain transfer reagent ZnEt2, leading to polyene oligomeric chains bound to Zn. Complex branched and cyclic higher oligomers were partially identified, and some possible mechanisms for their formation proposed. The Fe system did not successfully catalyse copolymerisation of acetylene and ethylene, although there was evidence of limited acetylene incorporation into ethylene oligomers.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (83 K)Download as PowerPoint slideHighlights► Imine complexes of Co, Fe, Ni and Pd evaluated for acetylene polym/oligomerisation. ► Fe catalyst is highly active. ► Polyacetylene formed after activation with methylaluminoxane. ► Acetylene oligomers formed in presence of chain transfer agent, ZnEt2. ► Fe catalyst does not copolymerise acetylene with ethylene.

Keywords
Acetylene; Oligomerisation; Polymerisation; Catalysis; Iron complex
First Page Preview
Evaluation of mid-to-late transition metal imine catalysts for acetylene oligomerisation: A high activity bis(imino)pyridine iron(II) catalyst
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 178, Issue 1, 15 December 2011, Pages 64–71
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us