Y(CoS2)2 crystallizes in the orthorhombic Imma space group. Y(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form YS6 octahedra that share corners with six equivalent Co(2)S6 octahedra, edges with two equivalent Y(1)S6 octahedra, edges with two equivalent Co(2)S6 octahedra, and edges with four equivalent Co(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 8-17°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form CoS6 octahedra that share edges with two equivalent Co(1)S6 octahedra, edges with four equivalent Y(1)S6 octahedra, and edges with four equivalent Co(2)S6 octahedra. In the second Co site, Co(2) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form distorted CoS6 octahedra that share corners with six equivalent Y(1)S6 octahedra, edges with two equivalent Y(1)S6 octahedra, edges with two equivalent Co(2)S6 octahedra, and edges with four equivalent Co(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 8-17°. There are two inequivalent S sites. In the first S site, S(1) is bonded in a rectangular see-saw-like geometry to one Y(1), one Co(2), and two equivalent Co(1) atoms. In the second S site, S(2) is bonded to two equivalent Y(1), one Co(1), and two equivalent Co(2) atoms to form a mixture of corner and edge-sharing SY2Co3 square pyramids.
Y(CoS2)2 crystallizes in the orthorhombic Imma space group. Y(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form YS6 octahedra that share corners with six equivalent Co(2)S6 octahedra, edges with two equivalent Y(1)S6 octahedra, edges with two equivalent Co(2)S6 octahedra, and edges with four equivalent Co(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 8-17°. Both Y(1)-S(1) bond lengths are 2.68 Å. All Y(1)-S(2) bond lengths are 2.70 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form CoS6 octahedra that share edges with two equivalent Co(1)S6 octahedra, edges with four equivalent Y(1)S6 octahedra, and edges with four equivalent Co(2)S6 octahedra. Both Co(1)-S(2) bond lengths are 2.35 Å. All Co(1)-S(1) bond lengths are 2.32 Å. In the second Co site, Co(2) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form distorted CoS6 octahedra that share corners with six equivalent Y(1)S6 octahedra, edges with two equivalent Y(1)S6 octahedra, edges with two equivalent Co(2)S6 octahedra, and edges with four equivalent Co(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 8-17°. Both Co(2)-S(1) bond lengths are 2.24 Å. All Co(2)-S(2) bond lengths are 2.43 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a rectangular see-saw-like geometry to one Y(1), one Co(2), and two equivalent Co(1) atoms. In the second S site, S(2) is bonded to two equivalent Y(1), one Co(1), and two equivalent Co(2) atoms to form a mixture of corner and edge-sharing SY2Co3 square pyramids.