Materials Data on Th2Fe2Si2C by Materials Project
Th2Fe2Si2C crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Th4+ is bonded in a 2-coordinate geometry to five equivalent Si4- and two equivalent C4- atoms. There are a spread of Th–Si bond distances ranging from 3.03–3.13 Å. Both Th–C bond lengths are 2.65 Å. Fe2+ is bonded in a distorted single-bond geometry to three equivalent Si4- and one C4- atom. All Fe–Si bond lengths are 2.33 Å. The Fe–C bond length is 1.81 Å. Si4- is bonded in a 8-coordinate geometry to five equivalent Th4+ and three equivalent Fe2+ atoms. C4- is bonded to four equivalent Th4+ and two equivalent Fe2+ atoms to form distorted edge-sharing CTh4Fe2 octahedra.
36 MATERIALS SCIENCE↗