Materials Data on CeAl4Si2Rh by Materials Project

Abstract

CeRhAl4Si2 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Ce is bonded in a 8-coordinate geometry to eight equivalent Al and eight equivalent Si atoms. All Ce–Al bond lengths are 3.36 Å. All Ce–Si bond lengths are 3.21 Å. Rh is bonded in a body-centered cubic geometry to eight equivalent Al atoms. All Rh–Al bond lengths are 2.52 Å. Al is bonded to two equivalent Ce, two equivalent Rh, and two equivalent Si atoms to form a mixture of distorted face, edge, and corner-sharing AlCe2Si2Rh2 tetrahedra. Both Al–Si bond lengths are 2.58 Å. Si is bonded in a 9-coordinate geometry to four equivalent Ce, four equivalent Al, and one Si atom. The Si–Si bond length is 2.28 Å.