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Kwon, Oh Hoon
Ultrafast Laser Spectroscopy and Nano-microscopy (ULSaN Lab)
Research Interests
  • Femtochemistry/biology, 4D electron microscopy, structural dynamics, materials phenomena

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Photo-induced proton-transfer cycle of 2-naphthol in faujasite zeolitic nanocavities

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Title
Photo-induced proton-transfer cycle of 2-naphthol in faujasite zeolitic nanocavities
Author
Lee, Young-ShinYu, HyunungKwon, Oh HoonJang, Du-Jeon
Issue Date
2008
Publisher
ROYAL SOC CHEMISTRY
Citation
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.10, no.1, pp.153 - 158
Abstract
The excited-state deprotonation and ground-state reprotonation of a 2-naphthol molecule encapsulated in the zeolitic nanocavity of NaX have been studied by measuring static and time-resolved spectra of fluorescence and reflectance. The excited molecule undergoes enol dissociation within 300 ps to form an isolated ion pair, which undergoes geminate recombination in 1200 ps or separation to produce the anionic species of 2-naphtholate on the time scale of 2500 ps. Ground-state reprotonation, controlled by the diffusion rate of a proton, is then followed in 0.8 ms with an activation energy of 13 kJ mol -1.
URI
https://scholarworks.unist.ac.kr/handle/201301/8707
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=37249007374
DOI
10.1039/b712928a
ISSN
1463-9076
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CHM_Journal Papers
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