Issue 14, 2010
From the journal:

Physical Chemistry Chemical Physics

Photoelectron spectroscopy of homogeneous nucleic acid base dimer anions

Yeon Jae Ko,a   Haopeng Wang,a   Rui Cao,b   Dunja Radisic,a   Soren N. Eustis,a   Sarah T. Stokes,a   Svetlana Lyapustina,a   Shan Xi Tian*b  and  Kit H. Bowen*a  

* Corresponding authors

a Department of Chemistry, Johns Hopkins University, Baltimore, USA
E-mail: kbowen@jhu.edu

b Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei, China
E-mail: sxtian@ustc.edu.cn

Abstract

We report the photoelectron spectra of homogeneous dimer anions of the nucleobases: uracil, thymine, cytosine, adenine, and guanine, i.e., U2−, T2−, C2−, A2−, and G2− along with DFT calculations on U2− and T2−. Based on these calculations the photoelectron spectrum of T2− was assigned as being due to both a proton transferred and a non-proton transferred isomer, while the photoelectron spectrum of U2− was assigned in terms of a single dominant barrier-free proton transferred isomer. Photoelectron spectra were also measured with a different source and on a different type of photoelectron spectrometer for U2−, T2−, A2−, (1-MeT)2− and (1,3-Me2U)2−.

Graphical abstract: Photoelectron spectroscopy of homogeneous nucleic acid base dimer anions

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Article information

DOI
https://doi.org/10.1039/B924950H
Article type
Paper
Submitted
26 Nov 2009
Accepted
21 Jan 2010
First published
11 Feb 2010

Phys. Chem. Chem. Phys., 2010,12, 3535-3541

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Photoelectron spectroscopy of homogeneous nucleic acid base dimer anions

Y. J. Ko, H. Wang, R. Cao, D. Radisic, S. N. Eustis, S. T. Stokes, S. Lyapustina, S. X. Tian and K. H. Bowen, Phys. Chem. Chem. Phys., 2010, 12, 3535 DOI: 10.1039/B924950H

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