Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, category: copper-catalyst, Name is Cuprous thiocyanate, belongs to copper-catalyst compound, is a common compound. category: copper-catalystIn an article, authors is Ahuja, Ritu, once mentioned the new application about category: copper-catalyst.
Chelating and bridging bis(diphenylphosphino)aniline complexes of copper(I)
The ligand bis(diphenylphosphino)aniline (dppan) has been shown to be a versatile ligand sporting different coordination modes and geometries as dictated by copper(I) and the counter ion. The molecular structures of its Cu(I) complexes were characterized by X-ray crystallography. The ligand was found in a chelating mode and monomeric complexes were formed when the ligand to copper ratio was 2:1 and the anion was non-coordinating. However, with thiocyanate as the counter anion, the ligand was found to adopt two different modes, with one ligand chelating and the other acting as a monodentate ligand. With CuX (X = Cl, Br), dppan formed a tetrameric complex when the ligand and metal were reacted in the ratio of 1:1. But reactions containing ligand and metal in the ratios of 1:2 or 2:1, resulted in the formation of a mixture of species in solution. Crystallization however, led to the isolation of the tetrameric complex. Variable temperature 31P{1H} NMR spectra of the isolated tetramers did not show the presence of chelated structures in solution. Tetra-alkylammonium salts were added to solutions of various complexes of dppan and studied by 31P{1H} NMR to probe the effect of anions on the stability of complexes in solution. The Cu-dppan complexes were robust and did not interconvert with other structures in solution unlike the bis(diphenylphosphino)isopropylamine complexes.
Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. A catalyst, does not appear in the overall stoichiometry of the reaction it catalyzes. you can also check out more blogs about Recommanded Product: 2-Oxo-2,3-dihydrobenzo[d]oxazole-6-carboxylic acid!, category: copper-catalyst
Reference：
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”