Mono- Ir^III versus Heterobimetallic Ir^III-Au^I Complexes for Circularly Polarized Luminescence.

ABSTRACT: Fundamental rationalization of the structural-circularly polarized luminescence (CPL) activity relationship is a challenging task. Herein, a pair of enantiopure, heterobimetallic Ir^III─Au^I complexes IrAu-4 featuring chirality-at-metal is thoroughly investigated by means of spectroscopical and computational techniques, also including spin-orbital coupling (SOC) effects. Upon resolution of the racemic mixture of the starting chloro-bridged dimer via a chiral auxiliary ligand, the complexes Ir^III─Au^I are straightforwardly prepared in a stepwise procedure with retention of configuration in good yields. The IrAu-4 complexes display moderate orange phosphorescence arising from an admixed metal-to-ligand and ligand-to-ligand charge transfer (³

SUBMITTER: Ballerini L 

PROVIDER: S-EPMC12336758 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature