Ortho Green Fluorescence Protein Synthetic Chromophore; Excited-State Intramolecular Proton Transfer via a Seven-Membered-Ring Hydrogen-Bonding System
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, R.O.C.Journal of the American Chemical Society (Impact Factor: 12.11). 05/2007; 129(15):4534-5. DOI: 10.1021/ja070880i
A structural isomer of the core chromophore (p-HBDI) in green fluorescence protein, o-HBDI, is synthesized. o-HBDI possesses a seven-membered-ring hydrogen bond, from which the excited-state intramolecular proton transfer takes place, resulting in a remarkable tautomer emission of similar to 605 nm.
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