CeB2C2 crystallizes in the tetragonal P4/mbm space group. Ce(1) is bonded in a 16-coordinate geometry to eight equivalent B(1) and eight equivalent C(1) atoms. B(1) is bonded in a distorted trigonal planar geometry to four equivalent Ce(1) and three equivalent C(1) atoms. C(1) is bonded in a 3-coordinate geometry to four equivalent Ce(1) and three equivalent B(1) atoms.
CeB2C2 crystallizes in the tetragonal P4/mbm space group. Ce(1) is bonded in a 16-coordinate geometry to eight equivalent B(1) and eight equivalent C(1) atoms. All Ce(1)-B(1) bond lengths are 2.82 Å. All Ce(1)-C(1) bond lengths are 2.77 Å. B(1) is bonded in a distorted trigonal planar geometry to four equivalent Ce(1) and three equivalent C(1) atoms. There is one shorter (1.53 Å) and two longer (1.61 Å) B(1)-C(1) bond lengths. C(1) is bonded in a 3-coordinate geometry to four equivalent Ce(1) and three equivalent B(1) atoms.