Materials Data on KAg2 by Materials Project
KAg2 is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. K is bonded in a 12-coordinate geometry to twelve Ag atoms. There are a spread of K–Ag bond distances ranging from 3.47–3.58 Å. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded to six equivalent K and six equivalent Ag atoms to form a mixture of edge, face, and corner-sharing AgK6Ag6 cuboctahedra. All Ag–Ag bond lengths are 3.03 Å. In the second Ag site, Ag is bonded to six equivalent K and six Ag atoms to form a mixture of edge, face, and corner-sharing AgK6Ag6 cuboctahedra. There are two shorter (2.93 Å) and two longer (2.98 Å) Ag–Ag bond lengths.
36 MATERIALS SCIENCE↗