Der erste verbrückte, bifunktionelle Cyclopentadienyl-Imidazolyliden- Ligand und Komplexe mit Titan und Zirconium
| dc.contributor.author | Müller, Jörn | |
| dc.contributor.author | Piotrowski, Ingo | |
| dc.contributor.author | Chrzanowski, Lars von | |
| dc.date.accessioned | 2018-10-10T07:34:05Z | |
| dc.date.available | 2018-10-10T07:34:05Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | Starting from imidazole, 1-[2-(cyclopenta-2,4-dienyl)ethyl]-3-methylimidazolium iodide (3) was obtained as a mixture of isomers by a simple three-step synthesis. The reaction of 3 with Ti(NEt2)4 or Zr(NEt2)4 by double deprotonation of the imidazolium salt led to the isomerically pure cationic complexes [{η5-C5H4-(CH2)2-NHC}M(NEt2)2]+I− (NHC = N-heterocyclic carbene) 4a (M = Ti) and 4b (M = Zr), respectively, in which a cyclopentadienyl and a methylimidazol-2-ylidene unit are linked by an ethylidene-1,2 bridge to form a novel chelating ligand system. In the case of the reaction of 3 with Zr(NEt2)4 the neutral compound [{η5-C5H4-(CH2)2-NHC}Zr(NEt2)I2] (5) is formed as an additional product. According to the X-ray structure analyses, the titanium atom of 4a is tetracoordinated while no coordinative interaction exists with the iodide anion; on the other hand, in 5 the zirconium centre is pentacoordinated. | en |
| dc.description.sponsorship | DFG, 272017, GRK 352: Synthetische, mechanistische und reaktionstechnische Aspekte von Metallkatalysatoren | en |
| dc.identifier.eissn | 1865-7117 | |
| dc.identifier.issn | 0932-0776 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/8304 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-7455 | |
| dc.language.iso | de | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ | |
| dc.subject.ddc | 540 Chemie und zugeordnete Wissenschaften | de |
| dc.subject.other | Titanium | en |
| dc.subject.other | Zirconium | en |
| dc.subject.other | Bridged Cyclopentadienyl N-Heterocyclic Carbene Ligands | en |
| dc.subject.other | crystal structures | en |
| dc.subject.other | agostic interaction | en |
| dc.title | Der erste verbrückte, bifunktionelle Cyclopentadienyl-Imidazolyliden- Ligand und Komplexe mit Titan und Zirconium | de |
| dc.title.translated | The First Bridged, Bifunctional Cyclopentadienyl-Imidazolylidene Ligand and Complexes with Titanium and Zirconium | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.doi | 10.1515/znb-2007-0322 | |
| dcterms.bibliographicCitation.issue | 3 | |
| dcterms.bibliographicCitation.journaltitle | Zeitschrift für Naturforschung B | de |
| dcterms.bibliographicCitation.originalpublishername | De Gruyter | en |
| dcterms.bibliographicCitation.originalpublisherplace | Berlin | en |
| dcterms.bibliographicCitation.pageend | 474 | |
| dcterms.bibliographicCitation.pagestart | 467 | |
| dcterms.bibliographicCitation.volume | 62 | |
| tub.accessrights.dnb | free | |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Chemie | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.institute | Inst. Chemie | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | de |
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