Carbazole-functionalized MOFs for efficient selective photocatalytic oxidation of thioethers to sulfoxides

Abstract

Photocatalytic aerobic oxidation provides a sustainable route for selective organic transformations. Here, two bicarbazole-based MOFs, Co–H₄L and Mn–H₄L, were synthesized using [9,9′-bicarbazole]-3,3′,6,6′-tetracarboxylic (H₄L) acid as the ligand. Co–H₄L exhibits efficient visible-light-driven oxidation of sulfides to sulfoxides under mild conditions via singlet oxygen generation, demonstrating its potential as a robust and sustainable photocatalyst.