Photoelectron spectroscopy of large (water)n (n=50-200)clusters at 4.7 eV

摘要

The hydrated electron e_(aq)~-has long been a species of considerable interest,studied extensively by both experimental and theoretical methods.Several recent papers have focused on the relation between e_(aq)~-and its cluster analog,(H_20)~(2-7),~ exploring,for example,the connection between the dynamics of the bulk hydrated electron and those of the excess electron in water clusters.A key question underlying this discussion is whether or not the excess electron is sol-vated internally in the cluster,roughly approximating the bulk situation,or if it is solvated on the surface of the cluster,an issue that arose after early experimental and theoretical studies of these species.