Infrared Spectra of Hydrated Clusters of Guanine Nucleosides Observed by Ir-Uv Double Resonance Spectroscopy

Biology – Quantitative Biology – Biomolecules

Scientific paper

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Mini-Symposium: Biomolecules And Cluster Ions

Scientific paper

Mono- and dihydrated clusters of guanosine and 2'-deoxyguanosine are produced by laser-desorption supersonic-jet cooling and their structures are identified by IR-UV double resonance spectroscopy combined with theoretical calculation. The results show that specific hydration structures around the sugar group exist in both nucleosides. It is also demonstrated that the dihydrated structures are strongly influenced by the presence or absence of the 2'-hydroxy group on the sugar.
H. Saigusa, S. Urashima, and H. Asami, J. Phys. Chem. A, 2009, 113, 3455.
H. Asami, S. Urashima, and H. Saigusa, Phys. Chem. Chem. Phys., 2009, 11, 10466.

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