Analyzing the Relation between Structure and Aggregation Induced Emission (AIE) Properties of Iridium(III) Complexes through Modification of Non-Chromophoric Ancillary Ligands

Galán, L. and Cordes, D. and Slawin, A. and Jacquemin, D. and Ogden, M. and Massi, M. and Zysman-Colman, E. 2019. Analyzing the Relation between Structure and Aggregation Induced Emission (AIE) Properties of Iridium(III) Complexes through Modification of Non-Chromophoric Ancillary Ligands. European Journal of Inorganic Chemistry. 2019 (2): pp. 152-163.

Source Title

European Journal of Inorganic Chemistry

DOI

10.1002/ejic.201801118

ISSN

1434-1948

School

School of Molecular and Life Sciences (MLS)

URI

http://hdl.handle.net/20.500.11937/72712

Collection

Curtin Research Publications

Abstract

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Unconventionally modified dibenzoylmethane (dbm) ligands have been synthesized and successfully utilized as ancillary ligands for neutral iridium(III) complexes of the formula [Ir(dFppy)2(LX)], where dFppyH is 2-(2,4-difluorophenyl)pyridine and LX is tribenzoylmethane (tbm) or 1-phenyl-3-(4-(pyridin-2-yl)phenyl)propane-1,3-dione (pydbm). The modification of the ligands aims to prevent or enhance possible intermolecular interactions between the dFppy and/or the LX moiety in comparison with the previously reported [Ir(dFppy)2(dbm)] complex. The aggregation induced emission (AIE) properties of these complexes are significantly modulated, as a consequence of the different p–p interactions revealed by X-ray crystallography.