Microhydration of Guanine base pairs |
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| Authors: | Abo-Riziq Ali Crews Bridgit Grace Louis de Vries Mattanjah S |
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| Institution: | Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA. |
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| Abstract: | We report spectroscopy of clusters of guanine base pairs with one and two water molecules. We recorded the vibronic spectra of the mass-selected GG(H2O) and GG(H2O)2 clusters using resonant two photon ionization (R2PI) and we used IR-UV double resonance spectroscopy to obtain ground state IR spectra of these clusters. We found that a single water molecule stabilizes one of two structures we had previously found for guanine dimers. Addition of a second water molecule causes no further structural change. |
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