Ce3SbAs2 is Caswellsilverite-like structured and crystallizes in the orthorhombic Immm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to two equivalent Sb(1) and four equivalent As(1) atoms to form a mixture of corner and edge-sharing CeSb2As4 octahedra. The corner-sharing octahedra are not tilted. In the second Ce site, Ce(2) is bonded to two equivalent Sb(1) and four equivalent As(1) atoms to form a mixture of corner and edge-sharing CeSb2As4 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Sb(1) is bonded to two equivalent Ce(1) and four equivalent Ce(2) atoms to form SbCe6 octahedra that share corners with two equivalent Sb(1)Ce6 octahedra, corners with four equivalent As(1)Ce6 octahedra, edges with two equivalent Sb(1)Ce6 octahedra, and edges with ten equivalent As(1)Ce6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. As(1) is bonded to two equivalent Ce(1) and four equivalent Ce(2) atoms to form AsCe6 octahedra that share corners with two equivalent Sb(1)Ce6 octahedra, corners with four equivalent As(1)Ce6 octahedra, edges with five equivalent Sb(1)Ce6 octahedra, and edges with seven equivalent As(1)Ce6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°.
Ce3SbAs2 is Caswellsilverite-like structured and crystallizes in the orthorhombic Immm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to two equivalent Sb(1) and four equivalent As(1) atoms to form a mixture of corner and edge-sharing CeSb2As4 octahedra. The corner-sharing octahedra are not tilted. Both Ce(1)-Sb(1) bond lengths are 3.06 Å. All Ce(1)-As(1) bond lengths are 3.01 Å. In the second Ce site, Ce(2) is bonded to two equivalent Sb(1) and four equivalent As(1) atoms to form a mixture of corner and edge-sharing CeSb2As4 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Both Ce(2)-Sb(1) bond lengths are 3.15 Å. There are two shorter (2.99 Å) and two longer (3.07 Å) Ce(2)-As(1) bond lengths. Sb(1) is bonded to two equivalent Ce(1) and four equivalent Ce(2) atoms to form SbCe6 octahedra that share corners with two equivalent Sb(1)Ce6 octahedra, corners with four equivalent As(1)Ce6 octahedra, edges with two equivalent Sb(1)Ce6 octahedra, and edges with ten equivalent As(1)Ce6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. As(1) is bonded to two equivalent Ce(1) and four equivalent Ce(2) atoms to form AsCe6 octahedra that share corners with two equivalent Sb(1)Ce6 octahedra, corners with four equivalent As(1)Ce6 octahedra, edges with five equivalent Sb(1)Ce6 octahedra, and edges with seven equivalent As(1)Ce6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°.