Materials Data on LaRhC2 by Materials Project
LaRhC2 crystallizes in the tetragonal P4_1 space group. The structure is three-dimensional. La3+ is bonded in a 8-coordinate geometry to eight C3- atoms. There are a spread of La–C bond distances ranging from 2.84–2.94 Å. Rh3+ is bonded in a 4-coordinate geometry to four C3- atoms. There are a spread of Rh–C bond distances ranging from 2.07–2.17 Å. There are two inequivalent C3- sites. In the first C3- site, C3- is bonded in a 7-coordinate geometry to four equivalent La3+, two equivalent Rh3+, and one C3- atom. The C–C bond length is 1.36 Å. In the second C3- site, C3- is bonded in a 7-coordinate geometry to four equivalent La3+, two equivalent Rh3+, and one C3- atom.
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