Materials Data on YbB2C by Materials Project
YbB2C crystallizes in the tetragonal P4_2/mbc space group. The structure is three-dimensional. Yb3+ is bonded in a 4-coordinate geometry to four equivalent C3- atoms. There are two shorter (2.61 Å) and two longer (2.66 Å) Yb–C bond lengths. There are two inequivalent B sites. In the first B site, B is bonded in a distorted single-bond geometry to one C3- atom. The B–C bond length is 1.56 Å. In the second B site, B is bonded in a distorted water-like geometry to two equivalent C3- atoms. There is one shorter (1.60 Å) and one longer (1.61 Å) B–C bond length. C3- is bonded in a 3-coordinate geometry to four equivalent Yb3+ and three B atoms.
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