Dielectric spectra broadening as a signature for dipole-matrix interaction. III. Water in adenosine monophosphateadenosine-5′-triphosphate solutions

In this, the third part of our series on the dielectric spectrum symmetrical broadening of water, we consider the nucleotide aqueous solutions. Where in Parts I [E. Levy, J. Chem. Phys. 136, 114502 (2012)10.1063/1.3687914] and II [E. Levy, J. Chem. Phys. 136, 114503 (2012)10.1063/1.3691183], the dipole-dipole or ion-dipole interaction had a dominant feature, now the interplay between these two types of dipole-matrix interactions will be considered. We present the results of high frequency dielectric measurements of different concentrations of adenosine monophosphateadenosine-5′- triphosphate aqueous solutions. We observed the Cole-Cole broadening of the main relaxation peak of the solvent in the solutions. Moreover, depending on the nucleotide concentration, we observed both types of dipole-matrix interaction. The 3D trajectory approach (described in detail in Part I) is applied in order to highlight the differences between the two types of interaction.