Comparison of the Hydrogen Bond Interaction Dynamics in the Guanine and Cytosine Crystals: Ab Initio Molecular Dynamics and Spectroscopic Study

In this work, we present the comparison study of guanine and cytosine crystals based on the hydrogen bond (HB) dynamics. The ab initio molecular dynamics gave us a base for detailed analysis. The analysis of the trajectories by power spectrum generation, as well as the fluctuation of the interaction energies, showed large differences between HB networks in the considered crystals. The charge flow is present in the guanine molecule which forms...