Materials Data on LaTbC4 by Materials Project

TbLaC4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Tb3+ is bonded in a 10-coordinate geometry to ten C+1.50- atoms. There are a spread of Tb–C bond distances ranging from 2.47–2.75 Å. La3+ is bonded in a distorted q4 geometry to ten C+1.50- atoms. There are a spread of La–C bond distances ranging from 2.62–2.84 Å. There are two inequivalent C+1.50- sites. In the first C+1.50- site, C+1.50- is bonded in a 6-coordinate geometry to two equivalent Tb3+, three equivalent La3+, and one C+1.50- atom. The C–C bond length is 1.30 Å. In the second C+1.50- site, C+1.50- is bonded in a 2-coordinate geometry to three equivalent Tb3+, two equivalent La3+, and one C+1.50- atom.