Excited-State Proton Transfer of 1-Naphthol in Micelles
نویسندگان
چکیده
منابع مشابه
Theoretical study on the size dependence of excited state proton transfer in 1-naphthol-ammonia clusters.
The geometries and energetics of the ground and lower-lying singlet excited states S0, La, and Lb of 1-naphthol (NpOH)-(NH3)n (n = 0-5) clusters have been computed using density functional theory (DFT) and time-dependent density functional theory (TD-DFT) methods. Cluster size dependence of the excited state proton transfer (ESPT) reaction was investigated by the vertical transitions from the g...
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Hydrogen bonding interactions between biological chromophores and their surrounding protein and solvent environment significantly affect the photochemical pathways of the chromophore and its biological function. A common first step in the dynamics of these systems is excited state proton transfer between the noncovalently bound molecules, which stabilizes the system against dissociation and pri...
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The absorption of a photon by a hydroxy-aromatic photoacid triggers a cascade of events contributing to the overall phenomenon of intermolecular excited-state proton transfer. The fundamental steps involved were studied over the last 20 years using a combination of theoretical and experimental techniques. They are surveyed in this sequel in sequential order, from fast to slow. The excitation tr...
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Visible light excitation of the ligand-bridged assembly [(bpy)(2)Ru(a)(II)(L)Ru(b)(II)(bpy)(OH(2))(4+)] (bpy is 2,2'-bipyridine; L is the bridging ligand, 4-phen-tpy) results in emission from the lowest energy, bridge-based metal-to-ligand charge transfer excited state (L(-•))Ru(b)(III)-OH(2) with an excited-state lifetime of 13 ± 1 ns. Near-diffusion-controlled quenching of the emission occurs...
متن کاملExcited state proton transfer of some substituted naphthols in liposomes
Fluorescence probes based on excited state proton transfer (ESPT) have been recently developed for microheterogeneous media. The ESPT behaviour of a series of substituted naphthols (4-chl oro-1-naphthol, 5-amino-1-naphthol , 4-methoxy1-naphthol, 7-methoxy-2-naphthol , 3-amino-2-naphthol, 6-bromo-2naphthol and 1-bromo-2-naphthol) is investigated in liposomes, using steady state and time resolved...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry A
سال: 1998
ISSN: 1089-5639,1520-5215
DOI: 10.1021/jp982483n