Die strukturen des MgAl2S4 und Mg0.830In2.113S4

Abstract MgAl 2 S 4 crystallizes in the orthorhombic system, space group Pnma (No 62) with the lattice constants: a=1251.1 ± 0.6 pm, b =722.0 ± 0.4 pm, c=592.1 ± 0.4 pm The compound is isotypic to BeAl 2 O 4 . Mg 0.830 In 2.113 S 4 forms the spinel structure, space group Fd3m (No 227) with a=1071.9 ± 0.6 pm.