Li2EuSiO4, ein Europium(II)-dilithosilicat: Eu[(Li2Si)O4]

Li2EuSiO4, an Europium(II) Litho-Silicate: Eu[(Li2Si)O4] Single crystals of Li2EuSiO4 were first obtained by reaction of Eu2SiO4 with a melt of LiCl at 800 °C in a sealed tantalum tube. It crystallizes with the trigonal space group P3121, Z = 3, with a = 502.70(5), c = 1247.0(2) pm. The tetrahedra [LiO4] and [SiO4] are connected via common corners and thereby build up a three-dimensional network that leaves space for Eu2+ which is in an eightfold coordination. Li2SrSiO4 is isotypic with a = 502.59(4) and c = 1247.1(1) pm.