ErRhSi crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 9-coordinate geometry to six equivalent Rh(1) and five equivalent Si(1) atoms. Rh(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Rh(1) atoms.
ErRhSi crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 9-coordinate geometry to six equivalent Rh(1) and five equivalent Si(1) atoms. There are a spread of Er(1)-Rh(1) bond distances ranging from 2.94-3.29 Å. There are two shorter (2.94 Å) and three longer (2.97 Å) Er(1)-Si(1) bond lengths. Rh(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Si(1) atoms. There are a spread of Rh(1)-Si(1) bond distances ranging from 2.45-2.58 Å. Si(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Rh(1) atoms.