Palladium(0) NHC complexes : a new avenue to highly efficient phosphorescence
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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’ = PCy3, or IPr and SIPr NHC ligands. The photophysical properties of these complexes were determined in toluene solution and in solid state and contrasted to the poorly luminescent reference complex [Pd(IPr)(PPh3)]. Organic light-emitting diodes were successfully fabricated but attained external quantum efficiencies of between 0.3 and 0.7%.
Henwood , A F , Lesieur , M , Bansal , A K , Lemaur , V , Beljonne , D , Thompson , D G , Graham , D , Slawin , A M Z , Samuel , I D W , Cazin , C S J & Zysman-Colman , E 2015 , ' Palladium(0) NHC complexes : a new avenue to highly efficient phosphorescence ' Chemical Science , vol 6 , pp. 3248-3261 . DOI: 10.1039/C4SC03914A
Copyright The Authors 2015. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Palladium(0) NHC complexes: a new avenue to highly efficient phosphorescence Henwood, A. F., Lesieur, M., Bansal, A. K., Lemaur, V., Beljonne, D., Thompson, D. G., Graham, D., Slawin, A. M. Z., Samuel, I. D. W., Cazin, C. S. J. & Zysman-Colman, E. 2015 In : Chemical Science. 6, p. 3248-3261 – Reproduced by permission of The Royal Society of Chemistry
The authors are grateful to the Royal Society (University Research Fellowship to CSJC and Wolfson Research Merit Award for IDWS) and to EPSRC (grant: EP1J01771X) for financial support. EZ-C thanks the University of St Andrews for funding.
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