Synthesis and Copper(i) Complexation of 3,6-Di(2-pyridyl)pyridazine and 2,2′-Bipyridine Ligands Functionalized with a Dangling Iridium(iii) Complex

Veronica Marin; Richard Hoogenboom; Brian Moore; Elisabeth Holder; Ulrich S. Schubert

doi:10.1071/CH07015

RESEARCH ARTICLE

Synthesis and Copper(i) Complexation of 3,6-Di(2-pyridyl)pyridazine and 2,2′-Bipyridine Ligands Functionalized with a Dangling Iridium(iii) Complex

Veronica Marin ^A ^B , Richard Hoogenboom ^A ^B , Brian Moore ^A , Elisabeth Holder ^A ^B ^C and Ulrich S. Schubert ^A ^B ^D

+ Author Affiliations

- Author Affiliations

^A Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5600 MB Eindhoven, The Netherlands.

^B Dutch Polymer Institute, John F. Kennedylaan 2, 5612 AB Eindhoven, The Netherlands.

^C Current address: Functional Polymers Group and Institute for Polymer Technology, University of Wuppertal, Gaußstrasse 20, D-42097 Wuppertal, Germany.

^D Corresponding author. Email: u.s.schubert@tue.nl

Australian Journal of Chemistry 60(4) 229-235 https://doi.org/10.1071/CH07015
Submitted: 20 January 2007 Accepted: 2 March 2007 Published: 26 April 2007

Abstract

The combination of multiple metal complexes into single heterometallic architectures is of interest to study energy and electron transfer processes. In this contribution, the synthesis and characterization of iridium(iii) complexes with pendant dipyridyl–pyridazine and bipyridine moieties are reported. The successful coupling of an amino-functional mixed ligand Ir^III complex was performed by a carbamate linkage using carbonyl-diimidazole-activated ligands. Characterization by ¹H NMR spectroscopy, MALDI-TOFMS, and elemental analysis proved the purity of the synthesized complexes. Further, the complexation of these ligands with copper(i) ions and the effect of complexation on the phosphorescence of the Ir^III complex are discussed, whereby model complexation studies were performed to further understand the observed quenching behaviour.

Acknowledgments

This work forms part of the Dutch Polymer Institute (DPI) research program (project numbers 324 and 543). The authors acknowledge the Dutch Council for Scientific Research (NWO) for financial support.

References

Synthesis and Copper(i) Complexation of 3,6-Di(2-pyridyl)pyridazine and 2,2′-Bipyridine Ligands Functionalized with a Dangling Iridium(iii) Complex

Abstract

Acknowledgments

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