There is considerable interest in understanding the interaction of water with TiO2 and ZrO2. For example, photocatalyzed water splitting on TiO2 and ZrO2 surfaces has the potential to play a key role in solar-powered fuel cells. These considerations have motivated theoretical and experimental investigations of clusters of water with TiO2 and ZrO2. Electronic structure calculations by Dixon and coworkers on neutral TiO2H2O and ZrO2H2O clusters show that water splitting to form a dihydroxy species (i.e. TiO(OH)2) is highly exothermic and proceeds over a small barrier. By carrying out photoelectron spectroscopy of the anions TiO2ˉH2O and ZrO2ˉH2O, one can determine whether dissociative chemisorption occurs in the anions and if it does, explore the spectroscopy of the neutral di-hydroxy species. Previous conventional anion photoelectron spectra did indeed suggest that TiO2ˉH2O is a dihydroxide, but no vibrational structure was resolved. We thus decided to investigate both TiO2ˉH2O and ZrO2ˉH2O with cryo-SEVI combined with electronic structure calculations.