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You Lu, Dr. Zhenggang Lan and Prof. Dr. Walter Thiel Hydrogen Bonding Regulates the Monomeric Nonradiative Decay of Adenine in DNA Strands Angewandte Chemie International Edition 50

Version of Record online: 9 JUN 2011 | DOI: 10.1002/anie.201008146

Thumbnail image of graphical abstract

Distinct fates: For adenine in (dA)10, the internal conversion to the ground state is dominated by an S0/S1 conical intersection with a strong out-of-plane deformation of the amino group (left). In (dA)10⋅(dT)10, this channel is suppressed by adenine–thymine hydrogen bonding (right). The excited-state lifetimes of adenine are computed to be ten times longer in DNA strands than in vacuo or in water.

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