LuTiSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Lu(1) is bonded in a 5-coordinate geometry to five equivalent Si(1) atoms. Ti(1) is bonded to four equivalent Si(1) atoms to form a mixture of distorted corner and edge-sharing TiSi4 cuboctahedra. Si(1) is bonded in a 9-coordinate geometry to five equivalent Lu(1) and four equivalent Ti(1) atoms.
LuTiSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Lu(1) is bonded in a 5-coordinate geometry to five equivalent Si(1) atoms. There are four shorter (2.90 Å) and one longer (3.02 Å) Lu(1)-Si(1) bond length. Ti(1) is bonded to four equivalent Si(1) atoms to form a mixture of distorted corner and edge-sharing TiSi4 cuboctahedra. All Ti(1)-Si(1) bond lengths are 2.70 Å. Si(1) is bonded in a 9-coordinate geometry to five equivalent Lu(1) and four equivalent Ti(1) atoms.