Aggregation‐induced Phosphorescence Enhancement in IrIII Complexes. Issue 8 (20th July 2018)

• Record Type: Journal Article
• Authors: Mauro, Matteo; Cebrián, Cristina
• Is Part Of: Israel journal of chemistry. Volume 58:Issue 8(2018)
• Page Start: 901
• Page End: 914
• Publication Date: 2018-07-20
• Subjects: aggregation induced emission -- aggregation induced phosphorescence enhancement -- iridium complexes -- triplet emitters -- cyclometalating ligands; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/ijch.201800059
• Languages: English
• ISSNs: 0021-2148

Abstract

Abstract: Transition metal complexes that efficiently emit from an excited state with formally triplet character are an appealing class of compounds. However, they typically suffer from severe quenching, e. g. triplet‐triplet annihilation, in aggregated phase that often hampers their use in the solid‐state. Nonetheless, an intriguing effect, namely aggregation‐induced phosphorescence enhancement, has been sometimes observed, but clear elucidation of the mechanisms underlying this phenomenon is far from trivial. Nowadays, cyclometalated Ir III emitters play a leading role due to their outstanding features. Aiming at a rationalization of the AIPE effect, an overview of the different classes of Ir III emitters displaying enhancement of the emission upon aggregation will be herein provided along with their potential applications. Their photophysical properties will be discussed jointly with their X‐ray structural analysis. Ir III complexes represent the largest family of AIPE‐active compounds to date. Abstract :