Outside Back Cover: Semiconductor Cluster with High Reduction Potential and Efficient Charge Transfer Enables Visible‐Light‐Driven Activation of Inert Organic Substrates

Perched in equilibrium upon the T4-CdCu cluster, a balancing bird symbolizes the optimal balance between kinetics and thermodynamics achieved by the semiconductor cluster catalyst under visible-light excitation. In their Research Article (e202509764), Tao Wu et al. demonstrate that this equilibrium enables highly efficient and selective activation of inert substrates—such as non-activated arenes and aryl halides—delivering unprecedented photocatalytic performance under mild reaction conditions.