Excited-State Dynamics of Isolated DNA Bases: A Case Study of Adenine

被引：75

作者：

Bisgaard, Christer Z. ^{[2
]}

Satzger, Helmut ^{[2
]}

Ullrich, Susanne ^{[1
]}

Stolow, Albert ^{[2
]}

机构：

[1] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA

[2] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada

来源：

CHEMPHYSCHEM | 2009年 / 10卷 / 01期

关键词：

biophysics; conical intersections; femtochemistry; photochemistry; time-resolved spectroscopy; RESOLVED PHOTOELECTRON-SPECTROSCOPY; ELECTRONIC RELAXATION DYNAMICS; ULTRAFAST INTERNAL-CONVERSION; AB-INITIO; ULTRAVIOLET PHOTOELECTRON; MOLECULAR-DYNAMICS; GAS-PHASE; PHOTOSTABILITY; 2-AMINOPURINE; DEACTIVATION;

D O I：

10.1002/cphc.200800516

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We present a summary of recent advances in the understanding of the UV photophysics of the isolated DNA base adenine, emphasizing a discussion of the mechanisms behind the ultrafast relaxation following excitation to the pi pi* bond. Drawing on our femtosecond time-resolved photoelectron spectroscopy experiments, we discuss differences in the ultrafast relaxation of adenine and 9-methyladenine and consider the relative merits of the various proposed mechanisms.

引用

页码：101 / 110

页数：10

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