A porous metal–organic framework (Pd-MOF) as an efficient and recyclable catalyst for the C–O cross-coupling reactions

This report outlines the development of a novel and efficient metal-organic framework (MOF) synthesized through a hydrothermal reaction using palladium acetate salt and trimesic acid as the organic ligand. A series of detailed analyses, including FT-IR, XRD, EDS, TEM, XPS, BET, ICP, and SEM, were performed to characterize the resulting MOF. These analyses confirmed the successful integration of Pd within the metal-organic framework structure. Nitrogen adsorption-desorption analysis assessed the porosity of the Pd-T-MOF metal-organic framework. The specific surface area was measured at 206.3 m²/g based on isotherms. Using the BJH method, the total pore volume was calculated as 0.4 cm³/g, with an average pore diameter of 2.8 nm. The catalyst demonstrated exceptional catalytic performance and stability in facilitating the C-O cross-coupling reaction. The proposed protocol offers several advantages, such as catalyst reusability, mild reaction conditions, high product yields ranging from 58 to 98%, and short reaction times between 30 and 120 min. Furthermore, the adaptable nanocatalyst (Pd-T-MOF) can be easily separated from the reaction mixture via centrifugation and reused across four successive cycles with only a slight decrease in efficiency.