Investigating the elusive relationship between our interstellar medium and its assortment of complex organic molecules (COMs) allows us to explore possible precursors to the building blocks of life. A wealth of COMs including aldehydes, ketones, alcohols, and esters have been detected in a giant molecular cloud almost 26,000 light-years away from Earth named Sagittarius B2. This includes exotic COMs that must have been formed from non-equilibrium reactions. Spectroscopic studies by Kaiser and coworkers¹ investigated the formation and abundances of C₃H₂O isomers from carbon monoxide and acetylene in reaction conditions similar to those on interstellar ice grain surfaces found within Sagittarius. Following recent computational and experimental efforts², the excited state chemistry for the formation of C₃H₂O compounds is explored in more depth. In this contribution, we will simulate photoelectron spectra and provide molecular-level insight into the formation of these isomers on the basis of ground and excited state quantum mechanical calculations.