ErCoGe crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 9-coordinate geometry to four equivalent Co(1) and six equivalent Ge(1) atoms. Co(1) is bonded in a 8-coordinate geometry to four equivalent Er(1) and four equivalent Ge(1) atoms. Ge(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Co(1) atoms.
ErCoGe crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 9-coordinate geometry to four equivalent Co(1) and six equivalent Ge(1) atoms. There are a spread of Er(1)-Co(1) bond distances ranging from 2.82-2.93 Å. There are a spread of Er(1)-Ge(1) bond distances ranging from 2.92-3.13 Å. Co(1) is bonded in a 8-coordinate geometry to four equivalent Er(1) and four equivalent Ge(1) atoms. There are a spread of Co(1)-Ge(1) bond distances ranging from 2.43-2.54 Å. Ge(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Co(1) atoms.