Characterization of Dehydrated HONO through Velocity Mapped Ion Imaging
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While the gaseous form of HONO has been well studied, species in equilibrium with HONO have not been. In previous years of researching HONO, it was discovered that dehydrating HONO gas formed an unknown gaseous species, which we believed to be N2O3. N2O3 is a molecule with curious bonding properties and chemical dynamics that have not been fully researched. This experiment investigated the photodissociation of dehydrated HONO with a 355 nm dissociation beam and 125 nm vacuum ultraviolet (VUV) ionization beam to measure what was believed to be N2O3 according to calculated bond dissociation energies. In performing this experiment, the identity of NO and NO2 species were confirmed, matching the assumption that photodissociation of dehydrated HONO yields NO and NO2 ions, and thus proving that dehydrated HONO equilibrates strongly towards N2O3. Moving forward, we intend to continue researching the specific bonding properties of N2O3 and determine the reason for its surprising blue color when in condensed form.