Femtosecond dynamics of a hydrogen-bonded model base pair in the condensed phase: Double proton transfer in 7-azaindole

被引：132

作者：

Chachisvilis, M ^{[1
]}

Fiebig, T ^{[1
]}

Douhal, A ^{[1
]}

Zewail, AH ^{[1
]}

机构：

[1] CALTECH, Arthur Amos Noyes Lab Chem Phys, Pasadena, CA 91125 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1998年 / 102卷 / 04期

关键词：

D O I：

10.1021/jp980337b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Femtosecond, real-time dynamics of a hydrogen-bonded model base pair (7-azaindole dimer) in the condensed phase is presented and compared with gas-phase, molecular beam studies. Following the preparation of a wave packet (nonequilibrium state), we resolved the initial decay of the reactive pair and the rise of the tautomer in two solvents. Studies of the isotope effect, solvent viscosity, energy dependence, and polarization anisotropy are consistent with direct and indirect reaction pathways for the double proton transfer on a global potential energy surface.

引用

页码：669 / 673

页数：5

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