Acta Cryst. (2005). E61, m1525-m1527  [ doi:10.1107/S1600536805019562 ]

Diethanolaminium cyclo-octa-₂-fluoro-hexadeca-₂-trimethylacetato-³²O:O'-heptachromium(III)nickel(II) ethyl acetate 0.5-solvate

F. K. Larsen, C. A. Muryn, J. Overgaard, G. A. Timco and R. E. P. Winpenny

Abstract: 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.

Online 13 July 2005

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