title: [μ-Butane-1,4-diylbis(di-phenyl-phos-phane)-κ(2) P:P']bis-{[butane-1,4-diylbis(di-phenyl-phosphane)-κ(2) P,P']copper(I)} bis-(hexa-fluorido-phosphate) diethyl ether disolvate.
abstract: In the centrosymmetric dinuclear copper(I) complex cation of the title compound, [Cu2(C28H28P2)3](PF6)2·2C4H10O, the Cu(I) atom is bonded to three P atoms of two butane-1,4-diylbis(di-phenyl-phosphane) (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 inter-actions, forming a tape along [110]. The cation and the diethyl ether solvent mol-ecule are also linked by a C-H⋯O inter-action.
authors.affiliation: Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, Japan.
authors.forename: Michihiro
authors.initials: M
authors.lastname: Nishikawa
authors.affiliation: Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, Japan.
authors.forename: Asumi
authors.initials: A
authors.lastname: Akiyama
authors.affiliation: Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, Japan.
authors.forename: Taro
authors.initials: T
authors.lastname: Tsubomura