Photosensitizer-free singlet oxygen generation <i>via</i> a charge transfer transition involving molecular O <sub>2</sub> toward highly efficient oxidative coupling of arylamines to azoaromatics
Shivendra Singh, Tushar Kanti Mukherjee
Abstract
We report the generation of O 2 (a 1 Δ g ) via direct charge-transfer excitation of the solvent (S)–O 2 (X 3 Σ g − ) collision complex and utilize it for the catalyst-free oxidative coupling of arylamines to azoaromatics under ambient conditions.
Topics & Concepts
PhotosensitizerSinglet oxygenPhotochemistryChemistryCoupling (piping)Charge (physics)Oxidative coupling of methaneOxidative phosphorylationOxygenSinglet stateChemical physicsMaterials scienceExcited stateAtomic physicsPhysicsCatalysisOrganic chemistryQuantum mechanicsMetallurgyBiochemistryRadical Photochemical ReactionsAdvanced Nanomaterials in CatalysisAdvanced Photocatalysis Techniques