Ni2Ge is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to six equivalent Ni(2) and five equivalent Ge(1) atoms. In the second Ni site, Ni(2) is bonded in a 13-coordinate geometry to two equivalent Ni(2), six equivalent Ni(1), and five equivalent Ge(1) atoms. Ge(1) is bonded in a 10-coordinate geometry to five equivalent Ni(1) and five equivalent Ni(2) atoms.
Ni2Ge is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to six equivalent Ni(2) and five equivalent Ge(1) atoms. There are a spread of Ni(1)-Ni(2) bond distances ranging from 2.61-2.76 Å. There are a spread of Ni(1)-Ge(1) bond distances ranging from 2.34-2.79 Å. In the second Ni site, Ni(2) is bonded in a 13-coordinate geometry to two equivalent Ni(2), six equivalent Ni(1), and five equivalent Ge(1) atoms. Both Ni(2)-Ni(2) bond lengths are 2.62 Å. There are a spread of Ni(2)-Ge(1) bond distances ranging from 2.40-2.60 Å. Ge(1) is bonded in a 10-coordinate geometry to five equivalent Ni(1) and five equivalent Ni(2) atoms.