Palladium(0) NHC complexes: a new avenue to highly efficient phosphorescence

We report the first examples of highly luminescent di-coordinated Pd(0) complexes. Five complexes of the form [Pd(L)(L')] were synthesized, where L = IPr, SIPr or IPr* NHC ligands and L' = PCy , or IPr and SIPr NHC ligands. The photophysical properties of these complexes were determined in...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2015-05, Vol.6 (5), p.3248-3261
Main Authors: Henwood, Adam F, Lesieur, Mathieu, Bansal, Ashu K, Lemaur, Vincent, Beljonne, David, Thompson, David G, Graham, Duncan, Slawin, Alexandra M Z, Samuel, Ifor D W, Cazin, Catherine S J, Zysman-Colman, Eli
Format: Article
Language:English
Subjects:
Ligands
Organic light-emitting diodes
Phosphorescence
Quantum efficiency
Solid state
Toluene
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Summary:We report the first examples of highly luminescent di-coordinated Pd(0) complexes. Five complexes of the form [Pd(L)(L')] were synthesized, where L = IPr, SIPr or IPr* NHC ligands and L' = PCy , or IPr and SIPr NHC ligands. The photophysical properties of these complexes were determined in degassed toluene solution and in the solid state and contrasted to the poorly luminescent reference complex [Pd(IPr)(PPh )]. Organic light-emitting diodes were successfully fabricated but attained external quantum efficiencies of between 0.3 and 0.7%.
ISSN:2041-6520
2041-6539
DOI:10.1039/c4sc03914a