LuPt2Si2 crystallizes in the tetragonal I4/mmm space group. Lu(1) is bonded in a 16-coordinate geometry to eight equivalent Pt(1) and eight equivalent Si(1) atoms. Pt(1) is bonded to four equivalent Lu(1) and four equivalent Si(1) atoms to form a mixture of distorted edge, corner, and face-sharing PtLu4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Lu(1), four equivalent Pt(1), and one Si(1) atom.
LuPt2Si2 crystallizes in the tetragonal I4/mmm space group. Lu(1) is bonded in a 16-coordinate geometry to eight equivalent Pt(1) and eight equivalent Si(1) atoms. All Lu(1)-Pt(1) bond lengths are 3.19 Å. All Lu(1)-Si(1) bond lengths are 3.15 Å. Pt(1) is bonded to four equivalent Lu(1) and four equivalent Si(1) atoms to form a mixture of distorted edge, corner, and face-sharing PtLu4Si4 tetrahedra. All Pt(1)-Si(1) bond lengths are 2.44 Å. Si(1) is bonded in a 9-coordinate geometry to four equivalent Lu(1), four equivalent Pt(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.28 Å.