Ni4GaGe3 crystallizes in the orthorhombic Pmc2_1 space group. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to two equivalent Ni(2), two equivalent Ga(1), two equivalent Ge(1), and two equivalent Ge(3) atoms. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to two equivalent Ni(1), two equivalent Ni(4), two equivalent Ga(1), one Ge(3), two equivalent Ge(1), and two equivalent Ge(2) atoms. In the third Ni site, Ni(3) is bonded in a 6-coordinate geometry to two equivalent Ga(1) and four equivalent Ge(3) atoms. In the fourth Ni site, Ni(4) is bonded in a 10-coordinate geometry to two equivalent Ni(2), two equivalent Ni(4), two equivalent Ge(1), and four equivalent Ge(2) atoms. Ga(1) is bonded in a 8-coordinate geometry to two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(3), and two equivalent Ge(1) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(4), and two equivalent Ga(1) atoms. In the second Ge site, Ge(2) is bonded in a 6-coordinate geometry to two equivalent Ni(2) and four equivalent Ni(4) atoms. In the third Ge site, Ge(3) is bonded in a 6-coordinate geometry to one Ni(2), two equivalent Ni(1), and four equivalent Ni(3) atoms.
Ni4GaGe3 crystallizes in the orthorhombic Pmc2_1 space group. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to two equivalent Ni(2), two equivalent Ga(1), two equivalent Ge(1), and two equivalent Ge(3) atoms. Both Ni(1)-Ni(2) bond lengths are 2.59 Å. There is one shorter (2.49 Å) and one longer (2.50 Å) Ni(1)-Ga(1) bond length. Both Ni(1)-Ge(1) bond lengths are 2.52 Å. Both Ni(1)-Ge(3) bond lengths are 2.45 Å. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to two equivalent Ni(1), two equivalent Ni(4), two equivalent Ga(1), one Ge(3), two equivalent Ge(1), and two equivalent Ge(2) atoms. There is one shorter (2.56 Å) and one longer (2.70 Å) Ni(2)-Ni(4) bond length. Both Ni(2)-Ga(1) bond lengths are 2.56 Å. The Ni(2)-Ge(3) bond length is 2.89 Å. There is one shorter (2.46 Å) and one longer (2.51 Å) Ni(2)-Ge(1) bond length. Both Ni(2)-Ge(2) bond lengths are 2.42 Å. In the third Ni site, Ni(3) is bonded in a 6-coordinate geometry to two equivalent Ga(1) and four equivalent Ge(3) atoms. There is one shorter (2.46 Å) and one longer (2.48 Å) Ni(3)-Ga(1) bond length. There are two shorter (2.40 Å) and two longer (2.45 Å) Ni(3)-Ge(3) bond lengths. In the fourth Ni site, Ni(4) is bonded in a 10-coordinate geometry to two equivalent Ni(2), two equivalent Ni(4), two equivalent Ge(1), and four equivalent Ge(2) atoms. Both Ni(4)-Ni(4) bond lengths are 2.49 Å. There is one shorter (2.46 Å) and one longer (2.51 Å) Ni(4)-Ge(1) bond length. There are two shorter (2.41 Å) and two longer (2.45 Å) Ni(4)-Ge(2) bond lengths. Ga(1) is bonded in a 8-coordinate geometry to two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(3), and two equivalent Ge(1) atoms. Both Ga(1)-Ge(1) bond lengths are 2.79 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(4), and two equivalent Ga(1) atoms. In the second Ge site, Ge(2) is bonded in a 6-coordinate geometry to two equivalent Ni(2) and four equivalent Ni(4) atoms. In the third Ge site, Ge(3) is bonded in a 6-coordinate geometry to one Ni(2), two equivalent Ni(1), and four equivalent Ni(3) atoms.