Solvation dynamics of electron-metal cation contact pairs in LiCl aqueous solutions
Denis Dobrovolskii1, Mehran Mostafavi1, Sergey A Denisov1
1Institute de Chimie Physique UMR 8000, CNRS/Université Paris-Saclay, Bâtiment 349, Orsay, 91405, France. sergey.denisov@universite-paris-saclay.fr.
Abstract:
In this study, the dynamics of the solvation of (Li+-electron) pairs were investigated in LiCl water solutions at concentrations ranging from 2 to 14.6 M. The dynamics of contact pair solvation were observed experimentally for the first time using picosecond electron radiolysis. We observed a clear concentration-dependent increase in electron solvation time - from 10.6 ps at a LiCl concentration of 3.5 M to 17.3 ps at 14.6 M. We provide a mechanistic description of how metal cations influence this solvation.
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