Diethano­laminium cyclo-octa-μ₂-fluoro-hexa­deca-μ₂-trimethyl­acetato-κ³²O:O′-hepta­chromium(III)nickel(II) eth­yl acetate 0.5-solvate

The title compound, [N(C₂H₄OH)₂H₂][Cr₇NiF₈(C₅H₉O₂)₁₆]·0.5C₄H₈O₂, is a heterometallic wheel templated by a protonated amino alcohol. It consists of an octa­gon of metal centres, with each edge of the octa­gon bridged by a single F⁻ anion and two carboxyl­ate groups. Each metal atom is octa­hedrally coordinated. The protonated amine mol­ecule protrudes through the cavity of the ring, while a solvent eth­yl acetate mol­ecule fills up the vacant space between the ring anions. It appears that the one equivalent of Ni atoms is unevenly distributed among the eight metal sites.