[μ-Butane-1,4-diylbis(diphenylphosphane)-κ2P:P′]bis{[butane-1,4-diylbis(diphenylphosphane)-κ2P,P′]copper(I)} bis(hexafluoridophosphate) diethyl ether disolvate

In the centrosymmetric dinuclear copper(I) complex cation of the title compound, [Cu2(C28H28P2)3](PF6)2·2C4H10O, the CuI atom is bonded to three P atoms of two butane-1,4-diylbis(diphenylphosphane) (dppb) ligands with a triangular coordination geometry. One of these P atoms belongs to a bridging dppb ligand [Cu—P = 2.2381 (5) Å] and two belong to a chelating dppb ligand [Cu—P = 2.2450 (6) and 2.2628 (5) Å]. The bridging dppb ligand lies on an inversion centre. In the crystal, the cation and the PF6− anion are linked by C—H...F interactions, forming a tape along [110]. The cation and the diethyl ether solvent molecule are also linked by a C—H...O interaction.