NdOsGa4 crystallizes in the orthorhombic Pmma space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 16-coordinate geometry to four equivalent Os(1), two equivalent Ga(4), two equivalent Ga(6), four equivalent Ga(1), and four equivalent Ga(5) atoms. In the second Nd site, Nd(2) is bonded in a 10-coordinate geometry to one Ga(2), one Ga(4), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(6), and four equivalent Ga(1) atoms. There are two inequivalent Os sites. In the first Os site, Os(2) is bonded in a 8-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. In the second Os site, Os(1) is bonded in a 8-coordinate geometry to two equivalent Nd(1), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(4), and two equivalent Ga(5) atoms. There are six inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Nd(1), two equivalent Nd(2), one Os(1), one Os(2), one Ga(2), one Ga(3), one Ga(4), and one Ga(6) atom. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to two equivalent Nd(2), two equivalent Os(2), two equivalent Ga(4), and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to two equivalent Nd(2), one Os(2), two equivalent Os(1), one Ga(3), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Nd(1), one Nd(2), two equivalent Os(1), one Ga(2), one Ga(4), two equivalent Ga(1), and two equivalent Ga(3) atoms. In the fifth Ga site, Ga(5) is bonded in a 5-coordinate geometry to two equivalent Nd(1), two equivalent Nd(2), two equivalent Os(1), and one Ga(6) atom. In the sixth Ga site, Ga(6) is bonded to two equivalent Nd(1), four equivalent Nd(2), two equivalent Ga(5), and four equivalent Ga(1) atoms to form face-sharing GaNd6Ga6 cuboctahedra.
NdOsGa4 crystallizes in the orthorhombic Pmma space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 16-coordinate geometry to four equivalent Os(1), two equivalent Ga(4), two equivalent Ga(6), four equivalent Ga(1), and four equivalent Ga(5) atoms. All Nd(1)-Os(1) bond lengths are 3.49 Å. Both Nd(1)-Ga(4) bond lengths are 3.17 Å. Both Nd(1)-Ga(6) bond lengths are 3.44 Å. All Nd(1)-Ga(1) bond lengths are 3.05 Å. There are two shorter (3.03 Å) and two longer (3.24 Å) Nd(1)-Ga(5) bond lengths. In the second Nd site, Nd(2) is bonded in a 10-coordinate geometry to one Ga(2), one Ga(4), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(6), and four equivalent Ga(1) atoms. The Nd(2)-Ga(2) bond length is 3.12 Å. The Nd(2)-Ga(4) bond length is 3.07 Å. Both Nd(2)-Ga(3) bond lengths are 3.15 Å. Both Nd(2)-Ga(5) bond lengths are 3.05 Å. Both Nd(2)-Ga(6) bond lengths are 3.49 Å. There are two shorter (3.10 Å) and two longer (3.15 Å) Nd(2)-Ga(1) bond lengths. There are two inequivalent Os sites. In the first Os site, Os(2) is bonded in a 8-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. Both Os(2)-Ga(2) bond lengths are 2.62 Å. Both Os(2)-Ga(3) bond lengths are 2.66 Å. All Os(2)-Ga(1) bond lengths are 2.58 Å. In the second Os site, Os(1) is bonded in a 8-coordinate geometry to two equivalent Nd(1), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(4), and two equivalent Ga(5) atoms. Both Os(1)-Ga(1) bond lengths are 2.56 Å. Both Os(1)-Ga(3) bond lengths are 2.64 Å. Both Os(1)-Ga(4) bond lengths are 2.61 Å. Both Os(1)-Ga(5) bond lengths are 2.56 Å. There are six inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Nd(1), two equivalent Nd(2), one Os(1), one Os(2), one Ga(2), one Ga(3), one Ga(4), and one Ga(6) atom. The Ga(1)-Ga(2) bond length is 2.70 Å. The Ga(1)-Ga(3) bond length is 2.74 Å. The Ga(1)-Ga(4) bond length is 2.77 Å. The Ga(1)-Ga(6) bond length is 2.78 Å. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to two equivalent Nd(2), two equivalent Os(2), two equivalent Ga(4), and four equivalent Ga(1) atoms. Both Ga(2)-Ga(4) bond lengths are 2.80 Å. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to two equivalent Nd(2), one Os(2), two equivalent Os(1), one Ga(3), two equivalent Ga(1), and two equivalent Ga(4) atoms. The Ga(3)-Ga(3) bond length is 2.73 Å. Both Ga(3)-Ga(4) bond lengths are 2.78 Å. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Nd(1), one Nd(2), two equivalent Os(1), one Ga(2), one Ga(4), two equivalent Ga(1), and two equivalent Ga(3) atoms. The Ga(4)-Ga(4) bond length is 2.73 Å. In the fifth Ga site, Ga(5) is bonded in a 5-coordinate geometry to two equivalent Nd(1), two equivalent Nd(2), two equivalent Os(1), and one Ga(6) atom. The Ga(5)-Ga(6) bond length is 2.74 Å. In the sixth Ga site, Ga(6) is bonded to two equivalent Nd(1), four equivalent Nd(2), two equivalent Ga(5), and four equivalent Ga(1) atoms to form face-sharing GaNd6Ga6 cuboctahedra.