Materials Data on LaCoC2 by Materials Project
LaCoC2 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. La3+ is bonded in a 8-coordinate geometry to eight C+2.50- atoms. There are a spread of La–C bond distances ranging from 2.76–2.81 Å. Co2+ is bonded in a 4-coordinate geometry to four C+2.50- atoms. There is one shorter (1.95 Å) and three longer (2.02 Å) Co–C bond length. There are two inequivalent C+2.50- sites. In the first C+2.50- site, C+2.50- is bonded in a 7-coordinate geometry to four equivalent La3+, two equivalent Co2+, and one C+2.50- atom. The C–C bond length is 1.37 Å. In the second C+2.50- site, C+2.50- is bonded in a 7-coordinate geometry to four equivalent La3+, two equivalent Co2+, and one C+2.50- atom.
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