CeNiGe3 crystallizes in the orthorhombic Cmmm space group. Ce(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Ge(1), two equivalent Ge(3), and six equivalent Ge(2) atoms. Ni(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one Ge(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ni(1), one Ge(1), and four equivalent Ge(3) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Ce(1), one Ni(1), and two equivalent Ge(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ni(1), one Ge(3), and four equivalent Ge(1) atoms.
CeNiGe3 crystallizes in the orthorhombic Cmmm space group. Ce(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Ge(1), two equivalent Ge(3), and six equivalent Ge(2) atoms. All Ce(1)-Ni(1) bond lengths are 3.21 Å. Both Ce(1)-Ge(1) bond lengths are 3.19 Å. Both Ce(1)-Ge(3) bond lengths are 3.20 Å. There are four shorter (3.12 Å) and two longer (3.26 Å) Ce(1)-Ge(2) bond lengths. Ni(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one Ge(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. The Ni(1)-Ge(2) bond length is 2.33 Å. Both Ni(1)-Ge(1) bond lengths are 2.38 Å. Both Ni(1)-Ge(3) bond lengths are 2.37 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ni(1), one Ge(1), and four equivalent Ge(3) atoms. The Ge(1)-Ge(1) bond length is 2.50 Å. All Ge(1)-Ge(3) bond lengths are 2.94 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Ce(1), one Ni(1), and two equivalent Ge(2) atoms. Both Ge(2)-Ge(2) bond lengths are 2.54 Å. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ni(1), one Ge(3), and four equivalent Ge(1) atoms. The Ge(3)-Ge(3) bond length is 2.49 Å.