To comprehensively assess the performance of SpaiNN, we investigated two distinct categories of organic model compounds. These molecules share a common characteristic: They show a torsional movement of groups around a C-C bond, specifically a double bond in their ground state, upon absorption of light. This phenomenon arises from the ππ * nature of the reached excited state: When a ππ * state is populated by light, the bond order of the molecules changes to one, converting the double bond to a single σ-bond. Consequently, atoms or groups of atoms can freely rotate around this bond in the electronic excited state, a freedom not available in the ground state. The quintessential example of such a photochemical reaction is the cis/trans-isomerization.