%0 Journal Article
%@ 1089-5639
%A Xiong, K
%A Asher, SA
%D 2011
%F pittir:17283
%J Journal of Physical Chemistry A
%N 34
%P 9345 - 9348
%T Lowest energy electronic transition in aqueous Cl <sup>-</sup> Salts: Cl <sup>-</sup> → (H <inf>2</inf>O) <inf>6</inf> charge transfer transition
%U http://d-scholarship-dev.library.pitt.edu/17283/
%V 115
%X We use UV resonance Raman spectroscopy to probe the lowest energy allowed electronic transitions of aqueous solutions containing Cl - salts. We show that the waters hydrating the Cl - are involved in charge transfer transitions that transfer electron density from Cl - to the water molecules. These charge transfer transitions cause significant change in the H-O-H bond angle in the excited state, which results in a strong enhancement of the preresonance Raman intensity of the water bending modes. Our work gives the first insight into the lowest allowed electronic transition of hydrated Cl -. © 2010 American Chemical Society.