Proton-induced fluorescence switching in novel naphthalimide-dansylamide dyads.
[reaction: see text] Three novel bichromophoric dyads containing dansylamide and 1,8-naphthalimide linked by oligomethylene spacers of varying length were prepared. The fluorescent moiety can be reversibly selected by protonation/deprotonation of the dansyl residue via control of singlet-singlet energy transfer and photoinduced electron transfer, leading to a molecular optical switch with two spectrally distinguished "on" states.
Abad
Sergio
S
Instituto de Tecnología Química, Universidad Politécnica de Valencia, UPV-CSIC, Av. de los Naranjos s/n, E-46022 Valencia, Spain.
Kluciar
Marek
M
Miranda
Miguel A
MA
Pischel
Uwe
U