Arresting intermediate states in a chemical reaction on a femtosecond time scale: proton transfer in model base pairs

被引：114

作者：

Folmer, DE ^{[1
]}

Poth, L ^{[1
]}

Wisniewski, ES ^{[1
]}

Castleman, AW ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 287卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(98)00138-9

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：

A new concept to study the dynamics of chemical reactions in real time is presented using the phenomenon of Coulomb explosion to arrest and directly interrogate the intermediates in a chemical reaction. This technique is employed to study the tautomerization reaction of the model DNA base pair 7-azaindole, providing direct mass spectral evidence of a stepwise versus a concerted mechanism for the proton transfer upon excitation into the S-1 state. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 7

页数：7

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