Tris[μ-1,2-bis(diphenylphosphino)ethane]-1:2κ2P:P′;1:3κ2P:P′;2:3κ2P:P′-di-μ-bromido-1:2κ4Br:Br-bromido-3κBr-tricopper(I) acetone hemisolvate

Wen-Juan Shi

doi:10.1107/s1600536808032789

Abstract

In the crystal structure of the title compound, [Cu3Br3(C26H24P2)3]·0.5CH3COCH3, two of the Cu centers are bridged by two bromide anions forming a Cu(μ-Br)2Cu core, which is further bridged by a 1,2-bis(diphenylphosphino)ethane (dppe) ligand. The third Cu center is terminally bound to another bromide ligand and is connected to the other two Cu atoms by bridging dppe ligands, forming a triangular cluster unit. The acetone solvent molecule exhibits twofold disorder about an inversion centre at (, 1, 0). The crystal structure is stabilized by intermolecular C—H⋯Br hydrogen bonds.

Highlights

In the crystal structure of the title compound, [Cu3Br3(C26H24P2)3]Á0.5CH3COCH3, two of the Cu centers are bridged by two bromide anions forming a Cu(-Br)2Cu core, which is further bridged by a 1,2-bis(diphenylphosphino)ethane ligand
The third Cu center is terminally bound to another bromide ligand and is connected to the other two Cu atoms by bridging dppe ligands, forming a triangular cluster unit
The crystal structure is stabilized by intermolecular C—HÁ Á ÁBr hydrogen bonds

Summary

Structure Reports Online

Key indicators: single-crystal X-ray study; T = 295 K; mean (C–C) = 0.010 A; disorder in solvent or counterion; R factor = 0.051; wR factor = 0.140; data-toparameter ratio = 18.7. In the crystal structure of the title compound, [Cu3Br3(C26H24P2)3]Á0.5CH3COCH3, two of the Cu centers are bridged by two bromide anions forming a Cu(-Br)2Cu core, which is further bridged by a 1,2-bis(diphenylphosphino)ethane (dppe) ligand. The third Cu center is terminally bound to another bromide ligand and is connected to the other two Cu atoms by bridging dppe ligands, forming a triangular cluster unit. The crystal structure is stabilized by intermolecular C—HÁ Á ÁBr hydrogen bonds. Crystal data [Cu3Br3(C26H24P2)3]Á0.5C3H6O Mr = 1654.56 Monoclinic, P21=a a = 18.6878 (10) Ab = 17.1080 (9) Ac = 25.2742 (13) A = 109.924 (1)

Bruker SMART APEX areadetector diffractometer

DÁ Á ÁA

Special details