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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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Excited-state double proton transfer of 7-azaindole in water nanopools

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Title
Excited-state double proton transfer of 7-azaindole in water nanopools
Author
Kwon, Oh HoonJang, DJ
Issue Date
2005-11
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY B, v.109, no.43, pp.20479 - 20484
Abstract
The excited-state proton-transfer dynamics of 7-azaindole occurring in the water nanopools of reverse micelles has been investigated by measuring time-resolved fluorescence spectra and kinetics, as well as static absorption and emission spectra, with varying water content and isotope. 7-Azaindole molecules are found to exist in the bound-water regions of reverse micelles. The rate constant and the kinetic isotope effect of proton transfer are smaller than those in bulk water although both increase with the size of the water nanopool. The retardation of proton transfer in the bound regions is attributed to the increased free energy of prerequisite solvation to form a cyclically H-bonded 1:1 7-azaindole/water complex.
URI
https://scholarworks.unist.ac.kr/handle/201301/8777
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=27744500371
DOI
10.1021/jp053187v
ISSN
1520-6106
Appears in Collections:
CHM_Journal Papers
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