Enantiopure [6]-Azairidahelicene by Dynamic Kinetic Resolution of a Configurationally Labile [4]-Helicene Pazos, Ariadna Moreno Cruz, Carlos Cuerva Carvajal, Juan Manuel Rivilla, Ivan P. Cossío, Fernando Freixa, Zoraida Circularly Polarized Luminescence Chiral-at-metal Complexes Helical Structures A pair of enantiopure [6]-azairidahelicenes incorporating chirality at the metal center and on the helicenic ligand were synthesized by dynamic kinetic resolution (dkr) of a configurationally labile [4]-helicenic ligand (4-(2-pyridyl)-benzo[g]phenanthrene, L1H) using bis-cyclometalated chiral-at-metal only iridium(III) precursors as chiral inductors. The origin of the observed dkr is attributed to the different conformation and stability of diastereomeric reaction intermediates formed during the cyclometalation process. The isolated enantiomers exhibited circularly polarized phosphorescence (CPP), with |gphos| values of 1.8×10−3. 2025-01-08T12:07:55Z 2025-01-08T12:07:55Z 2024-04-24 journal article Pazos, A. et. al. Angew. Chem. 2024, 136, e202406663. [https://doi.org/10.1002/anie.202406663] https://hdl.handle.net/10481/98703 10.1002/anie.202406663 eng http://creativecommons.org/licenses/by-nc/4.0/ open access Atribución-NoComercial 4.0 Internacional Wiley Online Library