Untersuchungen zur Struktur von Thallium(I)-halogenomercuraten(II) |
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Authors: | K. Brodersen,G. Thiele,G. G rz |
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Affiliation: | K. Brodersen,G. Thiele,G. Görz |
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Abstract: | Investigations on the Structure of Thallium(I) Halide Mercurates(II) Tl4HgBr6 crystallizes tetragonal with a = 8.978, c = 8.812 Å and Z = 2 in the space group P4/mnc. Singlecrystal methods revealed isolated HgBr6-octahedra, compressed alonged the [001] axis, with thallium atoms between them. The results have been extended to clarify the structures of the isomorphous compounds (NH4)4HgBr6 (a = 9.011, c = 8.660 Å), Tl4HgJ6 (a = 9.529, c = 9.387 Å) and Tl4HgCl2Br4 (a = 8.896, c = 8.735 Å). It was impossible to obtain Tl4HgCl6; all attempts resulted in the formation of Tl10Hg3Cl16, which crystallizes tetragonal (a = 8.477, c = 23.699 Å). |
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