Materials Data on TbCoSi2 by Materials Project
TbCoSi2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Tb4+ is bonded in a 10-coordinate geometry to ten Si4- atoms. There are a spread of Tb–Si bond distances ranging from 3.03–3.16 Å. Co4+ is bonded in a 5-coordinate geometry to five Si4- atoms. There are a spread of Co–Si bond distances ranging from 2.22–2.32 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 12-coordinate geometry to four equivalent Tb4+ and four equivalent Co4+ atoms. In the second Si4- site, Si4- is bonded in a 9-coordinate geometry to six equivalent Tb4+, one Co4+, and two equivalent Si4- atoms. Both Si–Si bond lengths are 2.43 Å.
36 MATERIALS SCIENCE↗