Fluorescent recognition of Fe3+ ion with photoinduced electron transfer (PET) sensor

- We synthesized a fluorescence receptor (2) and report it as a photoinduced electron transfer (PET) cation sensor.
- The association constant (K) of receptor (2) with Fe3+ ions was calculated at 1.4 ± 0.2 × 104 M−1.
- The 1:1 stoichiometry of the host guest relationship was realized from the Job's plot.