<sup>17</sup>O NMR of single-charged cations of chlorides in water and methanol
The temperature and concentration dependencies of solutions spectra of alkaline metals chlorides in water and methanol have been studied by <sup>1</sup>H and <sup>17</sup>O NMR method. The effect of cations dissolved in water and methanol on the of proton exchange rates has been determined. The data about the most probable amount of water molecules connected with cations have been obtained. The activation energies of proton exchange for water and methanol solutions of alkaline metal salts have been calculated.