Tetra-kis[μ(2)-1,1,1,3,3,3-hexa-fluoro-2-(tri-fluoro-meth-yl)propan-2-olato]tetra-kis-(μ(3)-2-methyl-propan-2-olato)octa-copper(I).

The title compound, [Cu(8)(C(4)H(9)O)(4)(C(4)F(9)O)(4)], crystallizes in the monoclinic space group, P2(1)/n and contains a self-assembly of two C(16)H(18)Cu(4)F(18)O(4) units linked by bridging tert-butyl groups [Cu-O bonds of length 2.3779†(15) and 2.4248†(15)†à ], generating a centrosymmetric dimer. The asymmetrical unit, C(16)H(18)Cu(4)F(18)O(4), contains an almost square-planar arrangement of the four Cu atoms linked by bridging tert-butyl and perfluorinated tert-butyl groups with Cu-Cu distances ranging from 2.7108†(4) to 2.7612†(4)†à and Cu -Cu-Cu angle values close to 90° [ranging from 89.459†(10)° to 90.025†(11)°]. These dimers are further linked by weak C-H⋯F and F⋯F inter-actions. As is commonly encountered in perfluorinated tert-butyl groups, one of the CF(3) groups is disordered and was refined with two equivalent conformations with occupancies of 0.74†(3) and 0.26†(3).