Efficient nanostructure design: cyanuric chloride-based high energy metal organic framework (EMOF) for di-aryl sulfides synthesis under solvent-free conditions

Abstract

Metal organic frameworks are a class of organic-inorganic materials comprised of interconnected metal clusters linked by organic ligands. Specifically, the article focuses on the investigation of an energetic organometallic ligand, and its application as catalyst. The synthesis process involved the sequential preparation of the ligand (H3TATT) followed by the introduction of the corresponding metal, resulting in the formation of an efficient and highly recyclable heterogeneous energetic metal–organic framework (EMOF) as catalyst. Subsequently, an array of analytical techniques including FT-IR, BET, FESEM, XRD, EDX-EDS, DLS, ICP, and TEM were employed to characterize the synthesized EMOF. Based on the interpretations of the conducted analyses, the synthesized compound demonstrated favorable properties and benefits, making it highly recommended for practical applications. The EMOF demonstrated remarkable catalytic performance in the S-arylation reaction, eliminating the need for hazardous solvents and costly metal catalysts. Owing to the distinctive structure of the EMOF in question, the reaction of aryl halides with S8/thiourea under solvent-free conditions led to impressive yields (98 %) and drastically shortened reaction times (15–45 min), offering a marked enhancement over prior research. The EMOF catalyst demonstrated outstanding chemical stability and recyclability, as it was readily separated by simple filtration and reused for a minimum of six consecutive runs without any significant reduction in its catalytic performance.