3-Hydroxychromone
CAS number: 13400-26-5
3-Hydroxychromone (3HC) is a molecule known for its unique fluorescence properties due to a process called excited-state intramolecular proton transfer (ESIPT). This process results in two distinct fluorescence bands, making it useful as a molecular probe and sensor.
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ESIPT reaction in 3-hydroxychromone. BPT stands for back proton transfer, and N* and T* represent the normal and tautomeric emitting forms, respectively.
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