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Coinage metal metallacycles involving a fluorinated 3,5-diarylpyrazolate
- Source :
- New Journal of Chemistry. 44:14814-14822
- Publication Year :
- 2020
- Publisher :
- Royal Society of Chemistry (RSC), 2020.
-
Abstract
- Copper(I) and silver(I) pyrazolate complexes {[3,5-(3,5-(CF3)2Ph)2Pz]Cu}3 and {[3,5-(3,5-(CF3)2Ph)2Pz]Ag}3 have been synthesized using the fluorinated 3,5-(diaryl)pyrazole 3,5-(3,5-(CF3)2Ph)2PzH 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)2Ph)2Pz]H/NaH. The X-ray crystal structures show that the coinage metal complexes {[3,5-(3,5-(CF3)2Ph)2Pz]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 < Au < Ag, which is the trend expected from covalent radii of the corresponding coinage metal ions. The 3,5-(3,5-(CF3)2Ph)2PzH forms hydrogen bonded trimers in the solid state that are further organized by π-stacking between aryl rings. Solid samples of {[3,5-(3,5-(CF3)2Ph)2Pz]M}3 display blue photoluminescence. The copper complex {[3,5-(3,5-(CF3)2Ph)2Pz]Cu}3 is an excellent catalyst for mediating azide–alkyne cycloaddition chemistry.
Details
- ISSN :
- 13699261 and 11440546
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- New Journal of Chemistry
- Accession number :
- edsair.doi...........d3a8486f0b865502062472842a4c8337