S. Nonell et al., 1H-PHENALEN-1-ONE-2-SULFONIC ACID - AN EXTREMELY EFFICIENT SINGLET MOLECULAR-OXYGEN SENSITIZER FOR AQUEOUS-MEDIA, Afinidad, 50(448), 1993, pp. 445-450
We report on the synthesis of H-1-phenalen-1-one-2-sulfonic acid (PNS)
and its ability to generate singlet molecular oxygen in aqueous media
. Treatment of H-1-phenalen-1-one with sulfuric acid yields PNS as the
solely reaction product. This compound sensitizes the formation of si
nglet oxygen in D2O with a quantum yield of 1.03 +/- 0.10. Its non-flu
orescing character makes it an attractive candidate for singlet oxygen
studies in aqueous media.