Solid-state emissive BODIPY dyes with bulky substituents as spacers

Org Lett. 2009 May 21;11(10):2105-7. doi: 10.1021/ol9005568.


Bright fluorescence of the BODIPY dyes, just like most other fluorophores, is quenched in the solid state due to reabsorption and self-quenching. However, introduction of bulky tert-butyl substituents on the meso-phenyl groups result in more spaced packing in the solid state, resulting in highly luminescent powders and films.