Ru (dpp) 3 (PF6) 2

Ru (dpp) 3 (PF6) 2 is a complex containing the metal ruthenium (Ru) and acts as a chemiluminescent oxygen probe. The compound [Ru (dpp) 3]2+ emits light via metal-to-ligand charge transfer (MLCT), where charge transfers from Ru to the ligand, resulting in fluorescence. This fluorescence is effectively quenched by molecular oxygen, making Ru (dpp) 3 (PF6) 2 widely utilized in biosensors, environmental monitoring, and materials science. Additionally, the ability of Ru2+ in Ru (dpp) 3 (PF6) 2 to oxidize to Ru3+ is instrumental in the design and development of solid-state electroluminescent cells.