| Abstract: | CsCu5S3 – A New Compound existing in two Modifications CsCu5S3 has been obtained in form of two modifications in a flux of cesium thiocyanate. Single crystal investigations revealed a tetragonal modification closely related to the structure of TlCu5Se3. The orthorhombic crystallizing modification can be described as a layer structure. The copper atoms in both atomic arrangements form arrays (fragment frame structures) of the fcc copper structure. At 582 °C the orthorhombic modification transforms easily into the tetragonal one, while the reverse reaction occurs very slowly. |
