Synthesis and Structure of [Et3NH][Fe(HL)2] [H3L = L ‐2‐(3,5‐Di‐tert‐butyl‐2‐hydroxybenzylamino)succinic Acid] and Its Catalytic Activity towards Efficient Photodegradation of Dyes in the Presence of H2O2

A new biogenic potentially tetradentate ligand, L‐2‐(3,5‐di‐tert‐butyl‐2‐hydroxybenzylamino)succinic acid, has been synthesized. Upon reaction with FeCl3 in the presence of triethylamine, it afforded the complex [Et3NH][Fe(HL)2] (1). The complex was structurally characterized and was used for homogeneous photocatalytic degradation of methylene blue (MB), malachite green (MG), crystal violet (CV) and rhodamine B (RhB) under visible‐light irradiation in aqueous solution in the presence of H2O2.