- Axially-Chiral Boramidine for Detailed (Chir)Optical Studies
Saleh, N.; Sucre-Rosales, E.; Zinna, F.; Besnard, C.; Vauthey, E.; Lacour, J.
Chem. Sci., sous presse
The inclusion of boron atoms into chiral π-conjugated systems is an effective strategy to unlock unique chiroptical properties. Herein, the preparation and characterization of a configurationally stable axially-chiral boramidine are reported showcasing absorption in the UV domain, deep-blue fluorescence (Φ up to 94%), and ca. |10-3| gabs and glum values. Detailed photophysical studies and quantum-chemical calculations clearly elucidate the deactivation pathways of the emissive state to triplet excited states, involving increased spin-orbit coupling between the lowest singlet excited state and an upper triplet state.
DOI : 10.1039/D4SC00870G
