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Stepwise deprotonation of a thiol-functionalized bis(1,2,4-triazolium) salt as a selective route to heterometallic NHC complexes

Heterometallic NHC complexes have been selectively prepared at room temperature directly from an azolium salt in a two-step procedure. In the unsymmetrically substituted bis(1,2,4-triazolium) ligand precursor, one of the m-xylylene-bridged triazolium units features an unprotected o-thiophenol substi...

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Bibliographische Detailangaben
Hauptverfasser: Seitz, Stefanie Christine (VerfasserIn) , Rominger, Frank (VerfasserIn) , Straub, Bernd Franz (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: April 4, 2013
In: Organometallics
Year: 2013, Jahrgang: 32, Heft: 8, Pages: 2427-2434
ISSN:1520-6041
DOI:10.1021/om400143u
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/om400143u
Volltext
Verfasserangaben:Stefanie C. Seitz, Frank Rominger, and Bernd F. Straub
Beschreibung
Zusammenfassung:Heterometallic NHC complexes have been selectively prepared at room temperature directly from an azolium salt in a two-step procedure. In the unsymmetrically substituted bis(1,2,4-triazolium) ligand precursor, one of the m-xylylene-bridged triazolium units features an unprotected o-thiophenol substituent. This renders possible a selective deprotonation and in situ monopalladation at the NHC-thiolato unit. The obtained palladium(II) complex possesses two pendant triazolium units as vacant binding sites. After a second deprotonation/metalation step, a heterodinuclear palladium(II) gold(I) complex and a heterotrinuclear palladium(II) dicopper(I) complex were obtained. In the latter, two metal centers are connected via a thiolato bridge.
Beschreibung:Gesehen am 17.08.2021
Beschreibung:Online Resource
ISSN:1520-6041
DOI:10.1021/om400143u

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