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In the crystal structure of the title compound, [Cu(2)Br(2)(dppe)(3)]·2CH(3)COCH(3) [dppe is 1,2-bis-(diphenyl-phosphino)-ethane, C(26)H(24)P(2)], the two Cu centers are bridged by a dppe ligand and each metal center carries one chelating dppe unit, with the fourth coordination site available for the Br(-) anion. The mol-ecule is centrosymmetric, with the center of symmetry located between the methyl-ene C atoms of the bridging dppe ligand. The crystal structure is stabilized by intra-molecular C-H⋯Br hydrogen bonds and inter-molecular π-π inter-actions, with a centroid-to-centroid distance of 3.2055 (1) Å.

acta crystallographica. section e

μ-1,2-Bis(diphenylphosphino)ethane-κ2P:P′-bis{[1,2-bis(diphenylphosphino)ethane-κ2P,P′]bromidocopper(I)} acetone disolvate