Chiroptical properties, including Circular Dichroism (CD) and Circularly Polarized Luminescence (CPL), of two sets of Yb, Tm and Er complexes were measured. The lanthanides studied gave access to three discrete energy domains within the NIR region, ranging from 900 to 1600 nm. Exceptionally high discrimination between left and right circularly polarized light was observed in both absorption (gabs) and emission (glum for Yb complexes), with gabs values up to almost the theoretical maximum (±2).
The work is available at the following link: https://doi.org/10.1039/D1DT03843E
