Materials Data on ErBi2C by Materials Project
ErCBi2 crystallizes in the tetragonal P4_2/mbc space group. The structure is three-dimensional. Er is bonded in a 2-coordinate geometry to two equivalent C and six Bi atoms. Both Er–C bond lengths are 2.79 Å. There are two shorter (3.05 Å) and four longer (3.50 Å) Er–Bi bond lengths. C is bonded in a 6-coordinate geometry to two equivalent Er and four equivalent Bi atoms. There are two shorter (2.47 Å) and two longer (2.83 Å) C–Bi bond lengths. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 6-coordinate geometry to four equivalent Er and two equivalent Bi atoms. Both Bi–Bi bond lengths are 2.81 Å. In the second Bi site, Bi is bonded in a 2-coordinate geometry to two equivalent Er and four equivalent C atoms.
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