The mid-IR absorption spectrum of gas-phase clusters of the nucleobases guanine 
and cytosine

Bakker, Joost M.; Compagnon, Isabelle; Meijer, Gerard; Helden, Gert von; Kabelac, Martin; Hobza, Pavel; de Vries, Mattanjah S.

doi:10.1039/b316158g

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The mid-IR absorption spectrum of gas-phase clusters of the nucleobases guanine and cytosine

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Meijer, Gerard
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Helden, Gert von
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Bakker, J. M., Compagnon, I., Meijer, G., Helden, G. v., Kabelac, M., Hobza, P., et al. (2004). The mid-IR absorption spectrum of gas-phase clusters of the nucleobases guanine and cytosine. Physical Chemistry Chemical Physics, 6(10), 2810-2815. doi:10.1039/b316158g.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0CB2-2

Abstract

The mid-infrared (IR) absorption spectrum of jet-cooled clusters of the nucleobases guanine and cytosine has been recorded in the 500–1800 cm–1 range by ion-dip spectroscopy. Some 30 clearly separated and sharp resonances are observed. The combination of the experimental data with new high-level ab initio calculations is consistent with a previous structural assignment and a tentative assignment is made to the K7-1E structure of guanine–cytosine. These data can serve as a test of the method in the mid-IR regime.