Density of State: The high density of states (DOS) surrounding the Fermi level (Figure and) indicates a substantial overlap of electronic states, thereby enhancing the model's electronic conductivity and charge carrier mobility. This observation indicates a high availability of accessible energy states for electrons and holes in close proximity to the Fermi level within the N-Pt-N phenalene derivative, thereby facilitating efficient charge transfer processes that are critical for photocatalysis . The presence of these peaks indicates strong electronic interactions and orbital contributions, particularly from the Pt center and the conjugated phenalene framework, which promote rapid electron excitation and transfer under light irradiation. The localized electronic density resulting from this phenomenon enhances the material's ability to sustain photogenerated charge carriers, thereby reducing the rate of recombination and enhancing the efficiency of photocatalytic processes, such as hydrogen evolution.