We present a study of excited-state OH- release from a set of organic photobases. In specific, acridine and xanthene derivatives were investigated using ultrafast pump-probe spectroscopy.We find that the solvent plays a key role in the photochemistry of these derivatives: while no bond scission is observed in aprotic solvents (i.e. acetonitrile), the protic solvents (MeOH or water) facilitate the heterolysis of C-O bond and OH- release from the singlet excited states of model compounds. The results of this work are discussed and compared to the similar studies of excited-state proton transfer from photoacids.

Kinetics of excited-state OH<sup>-</sup> release from model photobases

248th National Meeting (2014)

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Kinetics of excited-state OH- release from model photobases

Kinetics of excited-state OH^- release from model photobases