Optical Features of BODIPY Dyes Controlled by Local Environmental Interactions

To control the optical features of BODIPY dyes through local environmental interactions, three derivatives with distinct meso-substituents are investigated in different solvation systems. The large Stokes shift and broad bandwidth in optical transitions of BODIPY with a meso-substituent of an acetyl group (Ac-BDP) are attributed to significant structural changes in the excited state for the enhancement of electronic conjugation, which further influence dynamics and quantum yields. In contrast, t