Phospholipids bearing tetrafluorophenylazido chromophores were synthesized with perfectly conserved amphiphilicity and photochemical activity. Interestingly however, those phospholipids harboring the amine-linked chromophores exhibited unusual (19)F NMR signals which depended on the protonation state of the lipid headgroup. These probes may serve as powerful tools for studying various pH-dependent events in biomembranes.
© 2011 American Chemical Society