Materials Data on Zr4Co7Ge6 by Materials Project
Zr4Co7Ge6 crystallizes in the cubic Im-3m space group. The structure is three-dimensional. Zr is bonded to six equivalent Co and six equivalent Ge atoms to form ZrCo6Ge6 cuboctahedra that share corners with twelve equivalent ZrCo6Ge6 cuboctahedra, faces with six equivalent ZrCo6Ge6 cuboctahedra, and faces with two equivalent CoGe6 octahedra. All Zr–Co bond lengths are 2.79 Å. All Zr–Ge bond lengths are 2.85 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded to six equivalent Ge atoms to form CoGe6 octahedra that share faces with eight equivalent ZrCo6Ge6 cuboctahedra. All Co–Ge bond lengths are 2.52 Å. In the second Co site, Co is bonded in a 12-coordinate geometry to four equivalent Zr and four equivalent Ge atoms. All Co–Ge bond lengths are 2.44 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Zr and five Co atoms.