Asymmetric double proton transfer of excited 1:1 7-azaindole/alcohol complexes with anomalously large and temperature-independent kinetic isotope effects

被引：82

作者：

Kwon, OH

Lee, YS

Park, HJ

Kim, Y

Jang, DJ

机构：

[1] Seoul Natl Univ, Sch Chem, Seoul 151742, South Korea

[2] Kyung Hee Univ, Dept Chem, Kyunggido 449701, Yongin, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 43期

关键词：

hydrogen bonds; kinetic isotope effects; N-heterocycles; proton transfer; time-resolved spectroscopy;

D O I：

10.1002/anie.200461102

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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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页码：5792 / 5796

页数：5

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