Huppertz, Hubert; Schnick, Wolfgang
Eu2Si5N8 and EuYbSi4N7. The First Nitridosilicates with a Divalent Rare Earth Metal.
In: Acta crystallographica, C, Vol. 53, No. 12: pp. 1751-1753
The crystal structures of dieuropium penta siliconoctanitride, Eu2Si5N8, and europium ytterbium tetrasiliconheptanitride, EuYbSi4N7, are based on three-dimensional networks of corner-sharing SiN4 tetrahedra. Eu2Si5N8 is isotypic with the previously reported Sr and Ba analogues; EuYbSi4N7 is isotypic with SrYbSi4N7 and BaYbSi4N7.