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DC Field | Value | Language |
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dc.citation.endPage | 2284 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 2278 | - |
dc.citation.title | ORGANOMETALLICS | - |
dc.citation.volume | 30 | - |
dc.contributor.author | Moerdyk, Jonathan P. | - |
dc.contributor.author | Bielawski, Christopher W. | - |
dc.date.accessioned | 2023-12-22T06:11:50Z | - |
dc.date.available | 2023-12-22T06:11:50Z | - |
dc.date.created | 2020-07-13 | - |
dc.date.issued | 2011-04 | - |
dc.description.abstract | A series of Ru-based olefin metathesis catalysts containing N,N'-diamidocarbenes (DACs) were synthesized and studied. X-ray crystallographic analysis revealed that the Ru-C-carbene distances (1.938(5)-1.984(4) angstrom) measured in the DAC-supported complexes were relatively short, particularly in comparison to the range of Ru-C-carbene sdistances typically observed in analogous N-heterocyclic carbene (NHC) supported complexes (1.96-2.03 angstrom). While the Tolman electronic parameters (TEP) of various DACs (2056-2057 cm(-1)) were calculated to be similar to that of PCy3 (2056 cm(-1)), the ring-closing metathesis (RCM) of diethyl diallylmalonate facilitated by DAC-supported Ru complexes proceeded at a relatively slow rate. However, unlike the phosphine-containing complexes, the DAC analogues catalyzed the RCM of diethyl dimethallylmalonate to its respective tetrasubstituted olefin. A series of electrochemical experiments revealed that the Ru complexes bearing a DAC ligand underwent oxidation at significantly higher potentials (Delta E-pa > 0.5 V) than analogous complexes containing phosphines and various N-heterocyclic carbenes (NHCs), including a tetrahydropyrimidinylidene, a saturated and strongly donating NHC analogue of the DAC. The relative catalytic activities observed were attributed to the steric properties of the aforementioned ligands. | - |
dc.identifier.bibliographicCitation | ORGANOMETALLICS, v.30, no.8, pp.2278 - 2284 | - |
dc.identifier.doi | 10.1021/om200061c | - |
dc.identifier.issn | 0276-7333 | - |
dc.identifier.scopusid | 2-s2.0-79954549802 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/33192 | - |
dc.identifier.url | https://pubs.acs.org/doi/abs/10.1021/om200061c | - |
dc.identifier.wosid | 000289501000026 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Olefin Metathesis Catalysts Containing N,N '-Diamidocarbenes | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear; Chemistry, Organic | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | N-HETEROCYCLIC CARBENE | - |
dc.subject.keywordPlus | TRANSITION-METAL-COMPLEXES | - |
dc.subject.keywordPlus | FACE DONOR PROPERTIES | - |
dc.subject.keywordPlus | RUTHENIUM COMPLEXES | - |
dc.subject.keywordPlus | LIGANDS | - |
dc.subject.keywordPlus | BEARING | - |
dc.subject.keywordPlus | NHC | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | ACTIVATION | - |
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