Synthesis of a highly stable Mo–Fe bimetallic metal–organic framework and its catalytic activity for the selective oxidation of sulfides under mild conditions

Abstract

A novel Mo–Fe bimetallic metal–organic framework [Fe₂(4,4′-bipy)Mo₂O₈]·2H₂O (1) was synthesized and characterized by X-ray single crystal diffraction, infrared spectroscopy (IR), thermogravimetric analysis (TGA), ultraviolet-visible spectroscopy (UV-vis), and its magnetic properties were studied. The compound demonstrates insolubility in most solvents and exhibits significant chemical stability across a wide pH range. Typically, exceptional selectivity and efficient conversion of sulfides to sulfoxides using 1 with H₂O₂ have been verified under ambient conditions.