PrMo2Si2C crystallizes in the tetragonal P4/mmm space group. Pr(1) is bonded in a distorted linear geometry to eight equivalent Si(1) and two equivalent C(1) atoms. Mo(1) is bonded to four equivalent Si(1) and two equivalent C(1) atoms to form a mixture of distorted corner, edge, and face-sharing MoSi4C2 octahedra. The corner-sharing octahedra are not tilted. Si(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), four equivalent Mo(1), and one Si(1) atom. C(1) is bonded to two equivalent Pr(1) and four equivalent Mo(1) atoms to form corner-sharing CPr2Mo4 octahedra. The corner-sharing octahedra are not tilted.
PrMo2Si2C crystallizes in the tetragonal P4/mmm space group. Pr(1) is bonded in a distorted linear geometry to eight equivalent Si(1) and two equivalent C(1) atoms. All Pr(1)-Si(1) bond lengths are 3.23 Å. Both Pr(1)-C(1) bond lengths are 2.73 Å. Mo(1) is bonded to four equivalent Si(1) and two equivalent C(1) atoms to form a mixture of distorted corner, edge, and face-sharing MoSi4C2 octahedra. The corner-sharing octahedra are not tilted. All Mo(1)-Si(1) bond lengths are 2.60 Å. Both Mo(1)-C(1) bond lengths are 2.12 Å. Si(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), four equivalent Mo(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.43 Å. C(1) is bonded to two equivalent Pr(1) and four equivalent Mo(1) atoms to form corner-sharing CPr2Mo4 octahedra. The corner-sharing octahedra are not tilted.