Multifaceted Molecular Design Enables Comprehensive Luminescence Modulation in Metalloligand‐Stabilized Gold Nanoclusters

ligand confers reversible protonation-induced luminescence switching, enabling chemosensing potential. Collectively, these findings demonstrate a comprehensive investigation of TADF behavior and luminescence modulation in atomically precise metal nanoclusters, systematically engineered through heteroatom doping of the inner core, ligand design and anion exchange at the coordination surface, and outer-sphere complexation and protonation.