Cu(dppf) complexes can be synthesized from Cu-exchanged solids and enable a quantification of the Cu-accessibility by 31P MAS NMR spectroscopy

Abstract

Herein, we apply three different copper-exchanged materials (Na–[Al]SBA-15, silica, Na–MCM-22) as hosts for a direct synthesis of quantifiable CuI(1,1′-bis(diphenylphosphino)ferrocene = dppf) complexes in cationic ion exchange position.