Materials Data on TbCu4Ag by Materials Project
TbCu4Ag crystallizes in the cubic F-43m space group. The structure is three-dimensional. Tb is bonded in a 12-coordinate geometry to four equivalent Ag and twelve equivalent Cu atoms. All Tb–Ag bond lengths are 3.10 Å. All Tb–Cu bond lengths are 2.97 Å. Ag is bonded in a 4-coordinate geometry to four equivalent Tb and twelve equivalent Cu atoms. All Ag–Cu bond lengths are 2.96 Å. Cu is bonded to three equivalent Tb, three equivalent Ag, and six equivalent Cu atoms to form a mixture of corner, edge, and face-sharing CuTb3Cu6Ag3 cuboctahedra. There are three shorter (2.50 Å) and three longer (2.55 Å) Cu–Cu bond lengths.
36 MATERIALS SCIENCE↗