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  • 學位論文

合成鄰位綠色螢光蛋白質的發色團及其衍生物:激發態分子內質子轉移經由七員環氫鍵系統

Ortho-Hydroxy Analogues of Green Fluorescence Protein Chromophore:Excited-State Intramolecular Proton Transfer via a Seven-Membered-Ring Hydrogen-Bonding System

指導教授 : 周必泰

摘要


我們成功的合成出綠色螢光蛋白質(Green Fluorescent Protein,GFP)中心發色團(chromophore) 4-(4-hydroxybenzylidene)-1,2-dimethyl-1H-imidazol-5(4H)-one (p-HBDI)的結構異構物4-(2-hydroxybenzylidene)-1,2-dimethyl-1H-imidazol-5(4H)-one (o-HBDI)。o-HBDI擁有七員環氫鍵系統,以致激發態分子內質子轉移(Excited-State Intramolecular Proton Transfer,ESIPT),放射605 nm的螢光。

並列摘要


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 ~ 605 nm..

參考文獻


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