ErMnSi crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 11-coordinate geometry to six equivalent Mn(1) and five equivalent Si(1) atoms. Mn(1) is bonded in a 4-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 Mn(1) atoms.
ErMnSi crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 11-coordinate geometry to six equivalent Mn(1) and five equivalent Si(1) atoms. There are a spread of Er(1)-Mn(1) bond distances ranging from 2.96-3.29 Å. There are a spread of Er(1)-Si(1) bond distances ranging from 2.90-2.95 Å. Mn(1) is bonded in a 4-coordinate geometry to six equivalent Er(1) and four equivalent Si(1) atoms. There are a spread of Mn(1)-Si(1) bond distances ranging from 2.46-2.69 Å. Si(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Mn(1) atoms.