Issue 5, 2015
From the journal:

Chemical Science

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

Adam F. Henwood,‡a   Mathieu Lesieur,‡b   Ashu K. Bansal,‡c   Vincent Lemaur,d   David Beljonne,d   David G. Thompson,e   Duncan Graham,e   Alexandra M. Z. Slawin,b   Ifor D. W. Samuel,*c   Catherine S. J. Cazin*b  and  Eli Zysman-Colman*a  

* Corresponding authors

a Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife, UK
E-mail: eli.zysman-colman@st-andrews.ac.uk
Web: http://www.zysman-colman.com
Fax: +44-(0)1334-463808
Tel: +44-(0)1334-463826

b EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife, UK
E-mail: cc111@st-andrews.ac.uk
Fax: +44-(0)1334-463808
Tel: +44-(0)1334-464808

c Organic Semiconductor Centre, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, UK
E-mail: idws@st-andrews.ac.uk

d Service de Chimie des Matériaux Nouveaux & Centre d'Innovation et de Recherche en Matériaux Polymères, Université de Mons – UMONS/Materia Nova, Place du Parc, 20, B-7000 MONS, Belgium

e WestCHEM Department of Pure and Applied Chemistry and Centre for Molecular Nanometrology, University of Strathclyde, 295 Cathedral Street, Glasgow, UK

Abstract

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 degassed toluene solution and in the 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%.

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

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DOI
https://doi.org/10.1039/C4SC03914A
Article type
Edge Article
Submitted
17 Dec 2014
Accepted
02 Apr 2015
First published
02 Apr 2015
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2015,6, 3248-3261

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

A. F. Henwood, M. Lesieur, A. K. Bansal, V. Lemaur, D. Beljonne, D. G. Thompson, D. Graham, A. M. Z. Slawin, I. D. W. Samuel, C. S. J. Cazin and E. Zysman-Colman, Chem. Sci., 2015, 6, 3248 DOI: 10.1039/C4SC03914A

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