SrCa3O4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. Sr(1) is bonded to six equivalent O(1) atoms to form SrO6 octahedra that share corners with six equivalent Sr(1)O6 octahedra and edges with twelve equivalent Ca(1)O6 octahedra. The corner-sharing octahedra are not tilted. Ca(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CaO6 octahedra that share corners with six equivalent Ca(1)O6 octahedra, edges with four equivalent Sr(1)O6 octahedra, and edges with eight equivalent Ca(1)O6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1) and four equivalent Ca(1) atoms to form OSr2Ca4 octahedra that share corners with six equivalent O(1)Sr2Ca4 octahedra, edges with four equivalent O(2)Ca6 octahedra, and edges with eight equivalent O(1)Sr2Ca4 octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded to six equivalent Ca(1) atoms to form OCa6 octahedra that share corners with six equivalent O(2)Ca6 octahedra and edges with twelve equivalent O(1)Sr2Ca4 octahedra. The corner-sharing octahedra are not tilted.
SrCa3O4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. Sr(1) is bonded to six equivalent O(1) atoms to form SrO6 octahedra that share corners with six equivalent Sr(1)O6 octahedra and edges with twelve equivalent Ca(1)O6 octahedra. The corner-sharing octahedra are not tilted. All Sr(1)-O(1) bond lengths are 2.47 Å. Ca(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CaO6 octahedra that share corners with six equivalent Ca(1)O6 octahedra, edges with four equivalent Sr(1)O6 octahedra, and edges with eight equivalent Ca(1)O6 octahedra. The corner-sharing octahedra are not tilted. Both Ca(1)-O(2) bond lengths are 2.47 Å. All Ca(1)-O(1) bond lengths are 2.47 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1) and four equivalent Ca(1) atoms to form OSr2Ca4 octahedra that share corners with six equivalent O(1)Sr2Ca4 octahedra, edges with four equivalent O(2)Ca6 octahedra, and edges with eight equivalent O(1)Sr2Ca4 octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded to six equivalent Ca(1) atoms to form OCa6 octahedra that share corners with six equivalent O(2)Ca6 octahedra and edges with twelve equivalent O(1)Sr2Ca4 octahedra. The corner-sharing octahedra are not tilted.