Abstract: | Treatment of Cu(pcho)2(NCMe)]BF4] 1 (pcho = 2‐(diphenylphosphino)benzaldehyde) with aqueous H2O2 in THF solvent affords Cu2(dpb)2(THF)2(H2O)2] BF4]2 2 (dpb = 2‐(diphenylphosphinoxide)‐benzoate) after crystallization from diethyl ether. This reaction involves oxidation of Cu(I) to Cu(II) ion, phosphine to phosphinoxide, and benzaldehyde to benzoate species. The crystal structure of 2 consists of two copper(II) atoms bridged by two carboxylate moieties of the dpb ligands. The coordination about each copper(II) atom is a distorted trigonal bipyramid. |