A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 645-05-6, Name is Altretamine, molecular formula is C9H18N6. In an article, author is Lakhi, Jaspreet S.,once mentioned of 645-05-6, Quality Control of Altretamine.
Coinage metal metallacycles involving a fluorinated 3,5-diarylpyrazolate
Copper(I) and silver(I) pyrazolate complexes {[3,5-(3,5-(CF3)(2)Ph)(2)Pz]Cu}(3) and {[3,5-(3,5-(CF3)(2)Ph)(2)Pz]Ag}(3) have been synthesized using the fluorinated 3,5-(diaryl)pyrazole 3,5-(3,5-(CF3)(2)Ph)(2)PzH and copper(I) oxide and silver(I) oxide, respectively. The gold(I) analog was obtained from a reaction between Au(THT)Cl and [3,5-(3,5-(CF3)(2)Ph)(2)Pz]H/NaH. The X-ray crystal structures show that the coinage metal complexes {[3,5-(3,5-(CF3)(2)Ph)(2)Pz]M}(3) (M = Cu, Ag, Au) are trinuclear in the solid state. They feature distorted nine-membered M3N6 metallacyclic cores. The M-N distances follow Cu o Au o Ag, which is the trend expected from covalent radii of the corresponding coinage metal ions. The 3,5-(3,5-(CF3)(2)Ph)(2)PzH forms hydrogen bonded trimers in the solid state that are further organized by p-stacking between aryl rings. Solid samples of {[3,5-(3,5-(CF3)(2)Ph)(2)Pz]M}(3) display blue photoluminescence. The copper complex {[3,5-(3,5-(CF3)(2)Ph)(2)Pz]Cu}(3) is an excellent catalyst for mediating azide-alkyne cycloaddition chemistry.
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Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics