Asymmetric double proton transfer of excited 1 : 1 7-azaindole/alcohol complexes with anomalously large and temperature-independent kinetic isotope effects
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- Asymmetric double proton transfer of excited 1 : 1 7-azaindole/alcohol complexes with anomalously large and temperature-independent kinetic isotope effects
- Kwon, Oh Hoon; Lee, YS; Park, HJ; Kim, Y; Jang, DJ
- Hydrogen bonds; Kinetic isotope effects; N-heterocycles; Proton transfer; Time-resolved spectroscopy
- Issue Date
- WILEY-V C H VERLAG GMBH
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.43, no.43, pp.5792 - 5796
- Bridging alcohols, tunneling protons: The intrinsic proton-transfer dynamics of cyclic H-bonded 1:1 7-azaindole/alcohol complexes in n-alkanes has been investigated at the lowest-lying excited singlet state with variation of alcohol, solvent, isotope, and temperature by using static and time-resolved spectroscopy. The proton transfer occurs asymmetrically, and the rate is governed by tunneling although it is assisted by heavy-atom motions.
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