Impacts of extending the π-conjugation of the 2,2′-biquinoline ligand on the photophysics and reverse saturable absorption of heteroleptic cationic iridium(<scp>iii</scp>) complexes
Taotao Lu, Cuifen Lu, Peng Cui, Svetlana Kilina, Wenfang Sun
Abstract
Extending the π-conjugation of the 2,2′-biquinoline ligand in Ir( iii ) complexes via 7-benzothiazolylfluoren-2-yl substitution increased the triplet excited-state lifetime, leading to broad excited-state absorption at 480–800 nm and strong RSA at 532 nm.
Topics & Concepts
Cationic polymerizationIridiumExcited stateLigand (biochemistry)Absorption (acoustics)PhotochemistryMaterials scienceChemistryPolymer chemistryReceptorOrganic chemistryCatalysisAtomic physicsComposite materialPhysicsBiochemistryOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsPhotochemistry and Electron Transfer Studies