PrCo2B2C crystallizes in the tetragonal I4/mmm space group. Pr(1) is bonded in a square co-planar geometry to four equivalent C(1) atoms. Co(1) is bonded to four equivalent B(1) atoms to form distorted CoB4 tetrahedra that share corners with four equivalent C(1)Pr4B2 octahedra, corners with four equivalent Co(1)B4 tetrahedra, and edges with four equivalent Co(1)B4 tetrahedra. The corner-sharing octahedral tilt angles are 61°. B(1) is bonded in a distorted single-bond geometry to four equivalent Co(1) and one C(1) atom. C(1) is bonded to four equivalent Pr(1) and two equivalent B(1) atoms to form distorted CPr4B2 octahedra that share corners with four equivalent C(1)Pr4B2 octahedra, corners with eight equivalent Co(1)B4 tetrahedra, and edges with four equivalent C(1)Pr4B2 octahedra. The corner-sharing octahedra are not tilted.
PrCo2B2C crystallizes in the tetragonal I4/mmm space group. Pr(1) is bonded in a square co-planar geometry to four equivalent C(1) atoms. All Pr(1)-C(1) bond lengths are 2.61 Å. Co(1) is bonded to four equivalent B(1) atoms to form distorted CoB4 tetrahedra that share corners with four equivalent C(1)Pr4B2 octahedra, corners with four equivalent Co(1)B4 tetrahedra, and edges with four equivalent Co(1)B4 tetrahedra. The corner-sharing octahedral tilt angles are 61°. All Co(1)-B(1) bond lengths are 2.10 Å. B(1) is bonded in a distorted single-bond geometry to four equivalent Co(1) and one C(1) atom. The B(1)-C(1) bond length is 1.51 Å. C(1) is bonded to four equivalent Pr(1) and two equivalent B(1) atoms to form distorted CPr4B2 octahedra that share corners with four equivalent C(1)Pr4B2 octahedra, corners with eight equivalent Co(1)B4 tetrahedra, and edges with four equivalent C(1)Pr4B2 octahedra. The corner-sharing octahedra are not tilted.