Materials Data on Ca3Ag8 by Materials Project
Ca3Ag8 crystallizes in the cubic Im-3m space group. The structure is three-dimensional. Ca is bonded in a 12-coordinate geometry to twelve Ag atoms. There are a spread of Ca–Ag bond distances ranging from 3.15–3.56 Å. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded in a 2-coordinate geometry to four equivalent Ca and eight Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.84–3.14 Å. In the second Ag site, Ag is bonded to six equivalent Ca and six equivalent Ag atoms to form a mixture of face and corner-sharing AgCa6Ag6 cuboctahedra.
36 MATERIALS SCIENCE↗