YbNi2B2C crystallizes in the tetragonal I4/mmm space group. Yb(1) is bonded in a square co-planar geometry to four equivalent C(1) atoms. Ni(1) is bonded to four equivalent B(1) atoms to form distorted NiB4 tetrahedra that share corners with four equivalent C(1)Yb4B2 octahedra, corners with four equivalent Ni(1)B4 tetrahedra, and edges with four equivalent Ni(1)B4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. B(1) is bonded in a distorted single-bond geometry to four equivalent Ni(1) and one C(1) atom. C(1) is bonded to four equivalent Yb(1) and two equivalent B(1) atoms to form distorted CYb4B2 octahedra that share corners with four equivalent C(1)Yb4B2 octahedra, corners with eight equivalent Ni(1)B4 tetrahedra, and edges with four equivalent C(1)Yb4B2 octahedra. The corner-sharing octahedra are not tilted.
YbNi2B2C crystallizes in the tetragonal I4/mmm space group. Yb(1) is bonded in a square co-planar geometry to four equivalent C(1) atoms. All Yb(1)-C(1) bond lengths are 2.54 Å. Ni(1) is bonded to four equivalent B(1) atoms to form distorted NiB4 tetrahedra that share corners with four equivalent C(1)Yb4B2 octahedra, corners with four equivalent Ni(1)B4 tetrahedra, and edges with four equivalent Ni(1)B4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. All Ni(1)-B(1) bond lengths are 2.07 Å. B(1) is bonded in a distorted single-bond geometry to four equivalent Ni(1) and one C(1) atom. The B(1)-C(1) bond length is 1.46 Å. C(1) is bonded to four equivalent Yb(1) and two equivalent B(1) atoms to form distorted CYb4B2 octahedra that share corners with four equivalent C(1)Yb4B2 octahedra, corners with eight equivalent Ni(1)B4 tetrahedra, and edges with four equivalent C(1)Yb4B2 octahedra. The corner-sharing octahedra are not tilted.