Abstract
A new complex compound, bis[(18-crown-6)oxonium]tetrabromomanganese(II), 2[(H3O)+(18-crown-6)]·[MnBr4]2–, was prepared and studied by X-ray diffraction to reveal its unusual cubic crystal structure, space group Fd\( \bar 3 \), a 20.424 Å, and Z 8. In this crystal structure, the complex cation [(H3O)+(18-crown-6)] the point symmetry \( \bar 3 \) position and the anion [MnBr4]2− with the point symmetry 23. The complex cation [(H3O)+(18-crown-6)] has a guest-host structure, and, unlike metal complexes by hydrogen bonds between H3O+ hydrogens and 18-crown-6 oxygens, rather than by coordination bonds. The pyramidal cation H3O+ in this crystal structure is statistically disordered, and the tetrahedral anion [MnBr4]2− is reorientationally disordered.
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Original Russian Text © A.N. Chekhlov, 2008, published in Zhurnal Obshchei Khimii, 2008, vol. 78, No. 10, pp. 1622–1626.
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Chekhlov, A.N. Synthesis and crystal structure of bis[(18-crown-6)oxonium]tetrabromomanganese(II). Russ J Gen Chem 78, 1862–1865 (2008). https://doi.org/10.1134/S1070363208100058
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DOI: https://doi.org/10.1134/S1070363208100058