Schichtanionen in den Kristallstrukturen der isotypen Verbindungen Sr2[Ga2S5], Ba2[In2S5] und Ba2[In2Se5] |
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Authors: | Brigitte Eisenmann Achim Hofmann |
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Abstract: | Layer-Anions in the Crystal Structures of the Isotypic Compounds Sr2[Ga2S5], Ba2[In2S3], and Ba2[In2Se5] The compounds Sr2[Ga2S5], Ba2[In2S5], and Ba2[In2Se5] have been prepared from stoichiometric mixtures of the elements at temperatures between 1150°C and 1250°C. They are isotypic (space group Pbca, Z = 8) with the lattice constants see ?Inhaltsübersicht”?. In the anionic part of the structure GaS4-(InS4-/InSe4)-tetrahedra share three common vertices to form layers with rings built by four and eight tetrahedra. The cations are placed between the sheets and have the coordination number seven. |
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