Formation of sulfido ciobium complexes through C-S bond activation

Abstract

, and Z = 8. Additional studies indicated that the complexes were formed as a result of the nucleophilic displacement of the niobium-chloride bond by the thiolate ligand followed by a C-S bond cleavage. The cleavage occurs with an excess of the thiolate compound equal to or greater than 2:1.

One-Pot Catalytic Cleavage of C═S Double Bonds by Pd Catalysts at Room Temperature

“…Catalytic activation of carbon sulfur bond is important due to its wide applications in chemical, − energy, and environmental industry. , Hydrodesulfurization (HDS), the conversion of organic sulfur compounds to hydrogen sulfide and hydrocarbons by catalytic technologies, is one of the most important steps in petroleum refining industry, since fossil fuel usually contain organic sulfur impurities. , Furthermore, conversion of hazardous sulfur compounds to harmless chemicals is critical for environmental protection. In general, industrial-scale sulfur removal is carried out through heterogeneous catalysis, , while the mechanisms are still under investigation. , Thus, many efforts have been dedicated to the carbon–sulfur bond activation with transition metal complexes to probe the mechanism for developing highly efficient industrial catalysts. , Different transition metals have been employed to mediate the C–S bond activation, including palladium, − platinum, , rhodium, − iridium, , copper, , nickel, , iron, , cobalt, , ruthenium, , tungsten, and niobium, , among others.…”

“…10,11 Thus, many efforts have been dedicated to the carbon−sulfur bond activation with transition metal complexes to probe the mechanism for developing highly efficient industrial catalysts. 12,13 Different transition metals have been employed to mediate the C−S bond activation, including palladium, 14−16 platinum, 17,18 rhodium, 19−22 iridium, 23,24 copper, 25,26 nickel, 27,28 iron, 18,29 cobalt, 30,31 ruthenium, 32,33 tungsten, 34 and niobium, 35,36 among others.…”

Syntheses, characterizations, and crystal structures of tri‐ and diorganotin (IV) derivatives with 2‐mercapto‐5‐methyl‐1,3,4‐thiadiazole

“…Much work has focused on the synthesis and characterization of novel thiolate complexes that involve heavier group elements of lower valencies [4,5]. The potential in C-S bond cleavages and in desulfurizations [6][7][8], and their use as precursors of ceramic materials [9] have also been reported. Recently, attention has been paid to the coordination chemistry of heterocyclic thiol/thione donors, which can give potential access to new complexes with unusual structures and reactivities [10].…”