ThCr2Si2 crystallizes in the tetragonal I4/mmm space group. Th(1) is bonded in a 16-coordinate geometry to eight equivalent Cr(1) and eight equivalent Si(1) atoms. Cr(1) is bonded to four equivalent Th(1) and four equivalent Si(1) atoms to form a mixture of edge, face, and corner-sharing CrTh4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Th(1), four equivalent Cr(1), and one Si(1) atom.
ThCr2Si2 crystallizes in the tetragonal I4/mmm space group. Th(1) is bonded in a 16-coordinate geometry to eight equivalent Cr(1) and eight equivalent Si(1) atoms. All Th(1)-Cr(1) bond lengths are 3.32 Å. All Th(1)-Si(1) bond lengths are 3.11 Å. Cr(1) is bonded to four equivalent Th(1) and four equivalent Si(1) atoms to form a mixture of edge, face, and corner-sharing CrTh4Si4 tetrahedra. All Cr(1)-Si(1) bond lengths are 2.42 Å. Si(1) is bonded in a 9-coordinate geometry to four equivalent Th(1), four equivalent Cr(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.58 Å.