Chloridotris[μ(2)-2-(dimethyl­amino)­ethano­lato]-μ(3)-hydroxido-tri-μ(2)-trifluoro­acetato-tetra­copper(II) tetra­hydro­furan solvate

The title compound, [Cu(4)(C(2)F(3)O(2))(3)(C(4)H(10)NO)(3)Cl(OH)]·C(4)H(8)O or [Cu(4)(TFA)(3)(dmae)(3)Cl(OH)]·THF (dmae is dimeth­yl­amino­ethano­late, TFA is trifluoro­acetate and THF is tetra­hydro­furan), has an approximate mol­ecular threefold symmetry with three equivalent {Cu(dmae)(TFA)} units bridging between a Cu—Cl and a hydroxide unit, with the latter two lying on the mol­ecular threefold axis. However, in the solid state, the tetranuclear complex has C(i) symmetry. The Cu atom bonded to the Cl atom has a distorted tetra­hedral geometry. The other three Cu atoms have distorted square-pyramidal geometries with an NO(4) coordination environment. The bonds within the CuNO(3) base of the pyramid range from 1.953 (2) to 2.033 (3) Å, while the apical Cu—O bonds are significantly longer, ranging from 2.286 (2) to 2.377 (2) Å. The square-pyramidal geometries are augmented by weak inter­actions towards a sixth O atom, forming a highly distorted octa­hedral coordination environment [long Cu—O distances = 2.712 (2)–2.824 (2) Å]. The hydroxide group is hydrogen bonded to the tetra­hydro­furan solvent mol­ecule. One of the –CF(3) groups shows minor disorder over two positions, with a refined occupancy ratio of 0.894 (4):0.106 (5).