Analyzing the Relation between Structure and Aggregation Induced Emission (AIE) Properties of Iridium(III) Complexes through Modification of Non‐Chromophoric Ancillary Ligands. Issue 2 (13th November 2018)

• Record Type: Journal Article
• Authors: Galán, Laura Abad; Cordes, David B.; Slawin, Alexandra M. Z.; Jacquemin, Denis; Ogden, Mark I.; Massi, Massimiliano; Zysman‐Colman, Eli
• Is Part Of: European journal of inorganic chemistry. Issue 2(2019)
• Page Start: 152
• Page End: 163
• Publication Date: 2018-11-13
• Subjects: Iridium -- Luminescence -- Ligand effects -- Photophysics; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201801118
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : 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 π–π interactions revealed by X‐ray crystallography. Abstract : The structural and photophysical properties of neutral iridium(III) complexes using modified β‐diketonates as ancillary ligands have been investigated, resulting in significantly modulated aggregation induced emission properties.