Materials Data on YbC2 by Materials Project
YbC2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Yb2+ is bonded in a distorted q4 geometry to ten equivalent C1- atoms. There are two shorter (2.58 Å) and eight longer (2.77 Å) Yb–C bond lengths. C1- is bonded in a 6-coordinate geometry to five equivalent Yb2+ and one C1- atom. The C–C bond length is 1.26 Å.
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