Materials Data on TbSi2IrRh by Materials Project

Abstract

TbIrRhSi2 crystallizes in the tetragonal I-4m2 space group. The structure is three-dimensional. Tb is bonded in a 8-coordinate geometry to four equivalent Ir, four equivalent Rh, and eight equivalent Si atoms. All Tb–Ir bond lengths are 3.23 Å. All Tb–Rh bond lengths are 3.23 Å. All Tb–Si bond lengths are 3.13 Å. Ir is bonded to four equivalent Tb and four equivalent Si atoms to form distorted IrTb4Si4 tetrahedra that share corners with four equivalent RhTb4Si4 tetrahedra, corners with eight equivalent IrTb4Si4 tetrahedra, edges with two equivalent RhTb4Si4 tetrahedra, edges with four equivalent IrTb4Si4 tetrahedra, and faces with four equivalent RhTb4Si4 tetrahedra. All Ir–Si bond lengths are 2.41 Å. Rh is bonded to four equivalent Tb and four equivalent Si atoms to form distorted RhTb4Si4 tetrahedra that share corners with four equivalent IrTb4Si4 tetrahedra, corners with eight equivalent RhTb4Si4 tetrahedra, edges with two equivalent IrTb4Si4 tetrahedra, edges with four equivalent RhTb4Si4 tetrahedra, and faces with four equivalent IrTb4Si4 tetrahedra. All Rh–Si bond lengths are 2.41 Å. Si is bonded in a 9-coordinate geometry to four equivalent Tb, two equivalent Ir, two equivalent Rh, and one Si atom. The Si–Si bond length is 2.43 Å.