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The dication of the title compound, [Cu 2 (C 28 H 28 P 2 ) 2 (C 16 H 16 N 2 ) 2 ](PF 6 ) 2 ·2CH 2 Cl 2 , has crystallographically imposed inversion symmetry. The copper(I) cation is coordinated in a distorted tetra-hedral geometry by two N atoms of a chelating 3,4,7,8-tetra-methyl-1,10-phenanthroline ligand and two P atoms of two bridging 1,4-bis-(di-phenyl-phosphan-yl)butane ligands, forming a 14-membered ring. An intra-molecular π-π inter-action stabilizes the conformation of the dication. In the crystal, dications are linked by π-π inter-actions involving adjacent phenanthroline rings, forming chains running parallel to [111]. Weak C-H⋯F hydrogen inter-actions are also observed.

acta crystallographica. section e, crystallographic communications

Crystal structure of bis[μ-1,4-bis(diphenylphosphanyl)butane-κ2P:P′]bis[(3,4,7,8-tetramethyl-1,10-phenanthroline-κ2N,N′)copper(I)] bis(hexafluoridophosphate) dichloromethane disolvate