Crystal structure of EuCeCuS3

Resumo

The crystal structure of EuCeCuS₃, a complex sulfide synthesized for the first time, has been solved using X-ray powder diffraction data. Crystals are rhombic, space group Pnma, Ba₂MnS₃ structural type, a = 8.1023(1) Å, b = 4.0386(1) Å, c = 15.9022(2) Å, V = 520.36(1) ų, Z = 4, ρ_calcd = 5.767 g/cm³. The Eu,CeS₇ polyhedron incorporates the Eu and Ce atoms, which are randomly disordered over two crystallographic sites. The bond lengths d_Eu,Ce–S range from 2.885 to 3.044 Å.