SiGe2N4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ge(1) is bonded to six equivalent N(1) atoms to form GeN6 octahedra that share corners with six equivalent Si(1)N4 tetrahedra and edges with six equivalent Ge(1)N6 octahedra. Si(1) is bonded to four equivalent N(1) atoms to form SiN4 tetrahedra that share corners with twelve equivalent Ge(1)N6 octahedra. The corner-sharing octahedral tilt angles are 56°. N(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ge(1) and one Si(1) atom.
SiGe2N4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ge(1) is bonded to six equivalent N(1) atoms to form GeN6 octahedra that share corners with six equivalent Si(1)N4 tetrahedra and edges with six equivalent Ge(1)N6 octahedra. All Ge(1)-N(1) bond lengths are 2.01 Å. Si(1) is bonded to four equivalent N(1) atoms to form SiN4 tetrahedra that share corners with twelve equivalent Ge(1)N6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Si(1)-N(1) bond lengths are 1.81 Å. N(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ge(1) and one Si(1) atom.