Materials Data on Er(SiIr)2 by Materials Project
Er(IrSi)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Er is bonded in a 8-coordinate geometry to eight equivalent Ir and eight equivalent Si atoms. All Er–Ir bond lengths are 3.21 Å. All Er–Si bond lengths are 3.12 Å. Ir is bonded to four equivalent Er and four equivalent Si atoms to form a mixture of distorted corner, edge, and face-sharing IrEr4Si4 tetrahedra. All Ir–Si bond lengths are 2.41 Å. Si is bonded in a 9-coordinate geometry to four equivalent Er, four equivalent Ir, and one Si atom. The Si–Si bond length is 2.40 Å.