YIr2Si2 crystallizes in the tetragonal I4/mmm space group. Y(1) is bonded in a 16-coordinate geometry to eight equivalent Ir(1) and eight equivalent Si(1) atoms. Ir(1) is bonded in a 9-coordinate geometry to four equivalent Y(1), one Ir(1), and four equivalent Si(1) atoms. Si(1) is bonded in a 4-coordinate geometry to four equivalent Y(1) and four equivalent Ir(1) atoms.
YIr2Si2 crystallizes in the tetragonal I4/mmm space group. Y(1) is bonded in a 16-coordinate geometry to eight equivalent Ir(1) and eight equivalent Si(1) atoms. All Y(1)-Ir(1) bond lengths are 3.24 Å. All Y(1)-Si(1) bond lengths are 3.25 Å. Ir(1) is bonded in a 9-coordinate geometry to four equivalent Y(1), one Ir(1), and four equivalent Si(1) atoms. The Ir(1)-Ir(1) bond length is 2.61 Å. All Ir(1)-Si(1) bond lengths are 2.40 Å. Si(1) is bonded in a 4-coordinate geometry to four equivalent Y(1) and four equivalent Ir(1) atoms.