Materials Data on LaFeSi2Rh by Materials Project

Abstract

LaFeRhSi2 crystallizes in the tetragonal I-4m2 space group. The structure is three-dimensional. La3+ is bonded in a distorted body-centered cubic geometry to eight equivalent Si4- atoms. All La–Si bond lengths are 3.21 Å. Fe2+ is bonded to four equivalent Si4- atoms to form FeSi4 tetrahedra that share corners with four equivalent FeSi4 tetrahedra and edges with four equivalent RhSi4 tetrahedra. All Fe–Si bond lengths are 2.37 Å. Rh3+ is bonded to four equivalent Si4- atoms to form RhSi4 tetrahedra that share corners with four equivalent RhSi4 tetrahedra and edges with four equivalent FeSi4 tetrahedra. All Rh–Si bond lengths are 2.37 Å. Si4- is bonded in a 2-coordinate geometry to four equivalent La3+, two equivalent Fe2+, two equivalent Rh3+, and one Si4- atom. The Si–Si bond length is 2.73 Å.