Synthesis, Characterization, and Redox Reactions at the Solid–Liquid Interface of Submicron‐Size Ru(edta) Complex
Marta Chrzanowska, Yogeswara Rao Pateda, Barbara Kubiak, Weronika Walędziak, Olga Impert, Erik Rakovský, Viliam Vretenár, Anna Katafias, Debabrata Chatterjee, Rudi van EldikABSTRACT
A submicron‐sized colloidal ruthenium coordination compound was synthesized from a supersaturated solution of K[Ru III (Hedta)Cl] complex (edta 4− = ethylenediaminetetraacetate) using the antisolvent method. Electron microscopy (SEM/STEM) and spectroscopic (UV–vis and IR) studies revealed that the resulting submicron particles of K[Ru III (edta)(H 2 O)], denoted as K[Ru III (edta)(H 2 O)] SP , undergo ligand substitution with thiourea (TU) to form K[Ru III (edta)(TU)] SP , as well as redox reaction with hydrogen peroxide (H 2 O 2 ) yielding K[Ru V (edta)(O)] SP at the solid–liquid interface of a multiphase system. Furthermore, K[Ru III (edta)(H 2 O)] SP exhibited catalytic activity toward oxidative degradation of methylene blue (MB) in the presence of H 2 O 2 . The present study demonstrates that the characteristic coordination and redox reactivity of the Ru(edta) system are retained upon conversion to submicron particles, providing a model platform for investigating transition metal complex chemistry at solid‐liquid interfaces.