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Role of Excited States in Low-Energy Electron (LEE) Induced Strand Breaks in DNA Model Systems: Influence of Aqueous Environment

✍ Scribed by Anil Kumar; Michael D. Sevilla


Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
350 KB
Volume
10
Category
Article
ISSN
1439-4235

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✦ Synopsis


Abstract

Low‐energy electrons (LEEs) interact with a DNA model system to create a variety of excited states. In the gas phase, dissociative (σ*) states are accessible by LEEs with energy <4 eV (see picture) and cause facile strand breaks through a dissociative electron attachment mechanism. However, under solvation these dissociative (σ*) states are blue‐shifted and are less accessible to LEEs.magnified image