Status: Bibliographieeintrag
Standort: ---
Exemplare:
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| Online-Ressource |
Verfasst von: | Kühnel, Erik [VerfasserIn]  |
| Rominger, Frank [VerfasserIn]  |
| Oeser, Thomas [VerfasserIn]  |
| Hofmann, Peter [VerfasserIn]  |
Titel: | Synthesis and structures of copper(I) complexes with phosphino-functionalized N-heterocyclic carbenes (NHCP) and Bis-N-heterocyclic carbenes (Bis-NHC) |
Verf.angabe: | Erik Kühnel, Igor V. Shishkov, Frank Rominger, Thomas Oeser, and Peter Hofmann |
E-Jahr: | 2012 |
Jahr: | 26 November 2012 |
Umfang: | 12 S. |
Fussnoten: | Gesehen am 27.11.2018 |
Titel Quelle: | Enthalten in: Organometallics |
Ort Quelle: | Washington, DC : ACS Publ., 1982 |
Jahr Quelle: | 2012 |
Band/Heft Quelle: | 31(2012), 22, Seite 8000-8011 |
ISSN Quelle: | 1520-6041 |
Abstract: | New copper(I) complexes bearing N-phosphino- and N-phosphinomethyl-functionalized NHC ligands (NHCP systems) were synthesized and fully characterized. Using halide-containing copper(I) precursors, strikingly different structural motifs were found, dependent on the substitution pattern of the NHCP moiety. An interesting tetranuclear μ4-bridged copper(I) cluster (4b) is formed when CuBr·SMe2 is reacted with the N-phosphino-substituted ligand 1a, whereas the dinuclear complex 4a is formed in an analogous reaction with 1b. Dinuclear metallacycles (2a,b) were isolated and characterized by X-ray diffraction when the halide-free copper(I) precursor [Cu(CH3CN)4]PF6 was reacted with NHCP ligands 1a,b using the N-phosphinomethyl-substituted NHCP ligands 5a,b, as well as employing the bis-NHC ligands BIM and BIM-BMe2 (10a,b), respectively. The observed copper(I)-copper(I) distances are directly correlated with the size of the metallacycle formed. An unexpected strong influence upon the metal-metal separation was found for the charged complexes in 10a,b. Using directly N-tBu-substituted NHCP ligands led to formation of an electronically less favorable trans-C,C coordination at the copper(I) centers (3 and 6a), which inhibited the formation of a dimeric species in the case of 3. |
DOI: | doi:10.1021/om300701u |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: http://dx.doi.org/10.1021/om300701u |
| Volltext: https://doi.org/10.1021/om300701u |
| DOI: https://doi.org/10.1021/om300701u |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1584499745 |
Verknüpfungen: | → Zeitschrift |
Synthesis and structures of copper(I) complexes with phosphino-functionalized N-heterocyclic carbenes (NHCP) and Bis-N-heterocyclic carbenes (Bis-NHC) / Kühnel, Erik [VerfasserIn]; 26 November 2012 (Online-Ressource)
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