Ru-based olefin metathesis catalysts bearing ph-responsive n-heterocyclic carbene (NHC) ligands: Activity control via degree of protonation
dc.contributor.author | Balof, S. | |
dc.contributor.author | Yu, B. | |
dc.contributor.author | Lowe, Andrew | |
dc.contributor.author | Ling, Y. | |
dc.contributor.author | Zhang, Y. | |
dc.contributor.author | Schanz, H. | |
dc.date.accessioned | 2017-01-30T10:47:52Z | |
dc.date.available | 2017-01-30T10:47:52Z | |
dc.date.created | 2016-09-12T08:36:42Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Balof, S. and Yu, B. and Lowe, A. and Ling, Y. and Zhang, Y. and Schanz, H. 2009. Ru-based olefin metathesis catalysts bearing ph-responsive n-heterocyclic carbene (NHC) ligands: Activity control via degree of protonation. European Journal of Inorganic Chemistry (13 SPEC. ISS.): pp. 1717-1722. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/5682 | |
dc.identifier.doi | 10.1002/ejic.200801145 | |
dc.description.abstract |
Olefin metathesis catalysts (H2ITap)(PCy3)Cl2Ru=CHPh (4)and (H2ITap)Cl2Ru=CH-(C6H4-O-iPr) (5)[H2ITap = 1,3-bis-(2-,6-dimethyl-4- dimethylaminophenyl)-4,5-dihydroimid-azol-2-ylidene] were used for the ring-opening metathesispolymerization (ROMP) of exo-7-oxanorbornene derivative 7in the presence of various amounts of acid. Upon gradualprotonation of the NMe2 groups of the H2Tap ligand, the me-tathesis activity of both catalysts were gradually reduced dueto electronic changes of the N-heterocyclic carbene (NHC)ligand donor capability. The investigation of the ROMP poly-mer 8, DFT calculations and measurements of the initiationkinetics prove that the reduced activity is solely due to re-duced rates of propagation. © Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009. | |
dc.publisher | Wiley - V C H Verlag GmbH | |
dc.title | Ru-based olefin metathesis catalysts bearing ph-responsive n-heterocyclic carbene (NHC) ligands: Activity control via degree of protonation | |
dc.type | Journal Article | |
dcterms.source.number | 13 SPEC. ISS. | |
dcterms.source.startPage | 1717 | |
dcterms.source.endPage | 1722 | |
dcterms.source.issn | 1434-1948 | |
dcterms.source.title | European Journal of Inorganic Chemistry | |
curtin.department | Nanochemistry Research Institute | |
curtin.accessStatus | Fulltext not available |
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