This ‘Hot’ paper describes the development of a novel click chemistry approach for the modular construction of tuneable multichromophoric light emitters. To make these iridium complexes, one, two or three triazole–pyridine units were effectively built into the heteroaromatic macromolecule using versatile acetylene- and azide-functionalised precursors.
The approach described by the team from the Netherlands is of interest for the design and construction of various light-emitting materials by covalent linking of different chromophores, including versatile tuning of the material properties, using ‘click’ chemistry. One example of such an application was demonstrated; two iridium centres showing ‘yellow’ emission and one fluorene unit showing ‘blue’ emission were combined via the covalent linkage to provide a white-light emitter.
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Triazole–pyridine ligands: a novel approach to chromophoric iridium arrays
Michal Juríček, Marco Felici, Pablo Contreras-Carballada, Ján Lauko, Sandra Rodríguez Bou, Paul H. J. Kouwer, Albert M. Brouwer and Alan E. Rowan
J. Mater. Chem., 2011, Advance Article
DOI: 10.1039/C0JM03117H, Paper
