| Abstract
| - In situ infrared visible sum frequency generation spectroscopy (SFG) is used to examine thestructure of water at the Ag−water interface in NaF and KF electrolyte solutions. Water is observed inenvironments associated with both the electrode surface and the diffuse double layer. Peaks are observedthat are correlated with low-order water, water interacting with electrolyte ions, specifically adsorbed waterto the electrode surface, and hydronium. Spectra obtained from a thiol-modified Ag surface enableddiscrimination between surface-bound water and that in the double layer. The water organization isdependent on applied potential, with the observed intensities for specifically adsorbed and ion solvatingwater diminishing near the pzc.
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