title: Fluorescence photoactivation by ligand exchange around the boron center of a BODIPY chromophore.
abstract: Chelation of the boron center of the borondipyrromethene (BODIPY) platform by a catecholate ligand results in effective fluorescence suppression. Electron transfer from the chelating unit to the adjacent chromophore upon excitation is responsible for fluorescence quenching. Under the influence of a photoacid generator, the catecholate chelator can be exchanged with a pair of methoxide ligands. This photoinduced transformation prevents electron transfer and efficiently activates the fluorescence of the BODIPY chromophore.
authors.affiliation: Laboratory for Molecular Photonics, Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146-0431, United States.
authors.forename: Sherif
authors.initials: S
authors.lastname: Shaban Ragab
authors.forename: Subramani
authors.initials: S
authors.lastname: Swaminathan
authors.forename: Erhan
authors.initials: E
authors.lastname: Deniz
authors.forename: Burjor
authors.initials: B
authors.lastname: Captain
authors.forename: Françisco M
authors.initials: FM
authors.lastname: Raymo