SrCa2I6 is beta Vanadium nitride-derived structured and crystallizes in the trigonal P-31m space group. Sr(1) is bonded to six equivalent I(1) atoms to form SrI6 octahedra that share corners with twelve equivalent Ca(1)I6 octahedra. The corner-sharing octahedral tilt angles are 50°. Ca(1) is bonded to six equivalent I(1) atoms to form CaI6 octahedra that share corners with six equivalent Sr(1)I6 octahedra and edges with three equivalent Ca(1)I6 octahedra. The corner-sharing octahedral tilt angles are 50°. I(1) is bonded in a distorted trigonal planar geometry to one Sr(1) and two equivalent Ca(1) atoms.
SrCa2I6 is beta Vanadium nitride-derived structured and crystallizes in the trigonal P-31m space group. Sr(1) is bonded to six equivalent I(1) atoms to form SrI6 octahedra that share corners with twelve equivalent Ca(1)I6 octahedra. The corner-sharing octahedral tilt angles are 50°. All Sr(1)-I(1) bond lengths are 3.34 Å. Ca(1) is bonded to six equivalent I(1) atoms to form CaI6 octahedra that share corners with six equivalent Sr(1)I6 octahedra and edges with three equivalent Ca(1)I6 octahedra. The corner-sharing octahedral tilt angles are 50°. All Ca(1)-I(1) bond lengths are 3.16 Å. I(1) is bonded in a distorted trigonal planar geometry to one Sr(1) and two equivalent Ca(1) atoms.