Ca2WCo crystallizes in the cubic F-43m space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to four equivalent W(1) atoms to form distorted CaW4 tetrahedra that share corners with twelve equivalent Ca(2)Co4W6 tetrahedra, corners with twelve equivalent Ca(1)W4 tetrahedra, and faces with four equivalent Ca(2)Co4W6 tetrahedra. In the second Ca site, Ca(2) is bonded to six equivalent W(1) and four equivalent Co(1) atoms to form distorted CaCo4W6 tetrahedra that share corners with six equivalent Ca(2)Co4W6 tetrahedra, corners with twelve equivalent Ca(1)W4 tetrahedra, faces with four equivalent Ca(1)W4 tetrahedra, and faces with twelve equivalent Ca(2)Co4W6 tetrahedra. W(1) is bonded in a distorted body-centered cubic geometry to four equivalent Ca(1), six equivalent Ca(2), and four equivalent Co(1) atoms. Co(1) is bonded in a distorted body-centered cubic geometry to four equivalent Ca(2) and four equivalent W(1) atoms.
Ca2WCo crystallizes in the cubic F-43m space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to four equivalent W(1) atoms to form distorted CaW4 tetrahedra that share corners with twelve equivalent Ca(2)Co4W6 tetrahedra, corners with twelve equivalent Ca(1)W4 tetrahedra, and faces with four equivalent Ca(2)Co4W6 tetrahedra. All Ca(1)-W(1) bond lengths are 2.95 Å. In the second Ca site, Ca(2) is bonded to six equivalent W(1) and four equivalent Co(1) atoms to form distorted CaCo4W6 tetrahedra that share corners with six equivalent Ca(2)Co4W6 tetrahedra, corners with twelve equivalent Ca(1)W4 tetrahedra, faces with four equivalent Ca(1)W4 tetrahedra, and faces with twelve equivalent Ca(2)Co4W6 tetrahedra. All Ca(2)-W(1) bond lengths are 3.40 Å. All Ca(2)-Co(1) bond lengths are 2.95 Å. W(1) is bonded in a distorted body-centered cubic geometry to four equivalent Ca(1), six equivalent Ca(2), and four equivalent Co(1) atoms. All W(1)-Co(1) bond lengths are 2.95 Å. Co(1) is bonded in a distorted body-centered cubic geometry to four equivalent Ca(2) and four equivalent W(1) atoms.