Air-stable helical bis(cyclopentadienylphosphazene) complexes of divalent ytterbium

Air-stable helical bis(cyclopentadienylphosphazene) complexes of divalent ytterbium

Two homoleptic Yb II constrained geometry complexes [Yb{η 5,η 1-R 2P(C 5Me 4)NAd} 2] [R = Me (3), Ph (4); Ad = 1-adamantyl] derived from P-amino(cyclopentadienylidene)phosphoranes (CpPN) R 2P(C 5Me 4)NHAd [R = Me (1), Ph (2)] were found to be remarkably stable towards dioxygen, as shown by NMR spect...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Mendeleev communications 2010-07, Vol.20 (4), p.197-199
Hauptverfasser: Petrov, Alex R., Rufanov, Konstantin A., Hangaly, Noa K., Elfferding, Michael, Harms, Klaus, Sundermeyer, Jörg
Format: Artikel
Sprache:eng
Schlagworte:
Crystal structure
Electronics
Helical
Ligands
NMR spectroscopy
Stabilization
Ytterbium
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Two homoleptic Yb II constrained geometry complexes [Yb{η 5,η 1-R 2P(C 5Me 4)NAd} 2] [R = Me (3), Ph (4); Ad = 1-adamantyl] derived from P-amino(cyclopentadienylidene)phosphoranes (CpPN) R 2P(C 5Me 4)NHAd [R = Me (1), Ph (2)] were found to be remarkably stable towards dioxygen, as shown by NMR spectroscopy and further confirmed by the crystal structure analysis of 4 and discussed in terms of efficient steric shielding and electronic stabilization of the Yb II metal centre by this CpPN ligand type.
ISSN:0959-9436
DOI:10.1016/j.mencom.2010.06.004