d. Photocatalytic Tendency: The substantial breadth of the Pt spin range underscores its capacity to engage in redox reactions by alternating between disparate spin states, thereby enabling singleelectron transfer processes . This property is crucial for photocatalytic applications, such as hydrogen evolution. Under light excitation, platinum can efficiently capture photoexcited electrons and participate in the reduction of protons to hydrogen. The role of nitrogen in enhancing the electronic stability of the catalyst is also of significance.