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- Kwon, Oh Hoon
- Ultrafast Laser Spectroscopy and Nano-microscopy Lab.
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Excited-state triple proton transfer of 7-hydroxyquinoline along a hydrogen-bonded alcohol chain: vibrationally assisted proton tunneling
- Author(s)
- Kwon, Oh Hoon, Lee, YS, Yoo, BK, Jang, DJ
- Issued Date
- 2006
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.45, no.3, pp.415 - 419
- Abstract
- Proton relay in cyclic 7-hydroxyquinoline-(alcohol)2 complexes (see picture) has been explored in nonpolar solvents. The asymmetric triple proton transfer has an unusually large, temperature-independent, and viscosity-dependent kinetic isotope effect. Heavy-atom motions (wavy arrow) of solvent and bridging molecules allow proton tunneling by assisting the complex to reach the optimal precursor configuration. (Chemical Equation Presented)
- Publisher
- WILEY-V C H VERLAG GMBH
- ISSN
- 1433-7851
- Keyword (Author)
- hydrogen bonds, isotope effects, N heterocycles, proton transfer, time-resolved spectroscopy
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