INFRARED SPECTRA OF HYDRATED CLUSTERS OF GUANINE NUCLEOSIDES OBSERVED BY IR-UV DOUBLE RESONANCE SPECTROSCOPY

Abstract

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., 2009, \textbf{113}, 3455.}, 2009, \textbf{11}, 10466.} It is also demonstrated that the dihydrated structures are strongly influenced by the presence or absence of the 2'-hydroxy group on the sugar.