Gd2NiB10 crystallizes in the orthorhombic Pbam space group. Gd(1) is bonded in a 22-coordinate geometry to two equivalent Ni(1), four equivalent B(1), four equivalent B(2), four equivalent B(3), and eight equivalent B(4) atoms. Ni(1) is bonded in a 8-coordinate geometry to four equivalent Gd(1), two equivalent B(1), two equivalent B(3), and four equivalent B(4) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one Ni(1), one B(1), one B(2), and two equivalent B(4) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one B(1), two equivalent B(3), and two equivalent B(4) atoms. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one Ni(1), two equivalent B(2), and two equivalent B(4) atoms. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one Ni(1), one B(1), one B(2), one B(3), and one B(4) atom.
Gd2NiB10 crystallizes in the orthorhombic Pbam space group. Gd(1) is bonded in a 22-coordinate geometry to two equivalent Ni(1), four equivalent B(1), four equivalent B(2), four equivalent B(3), and eight equivalent B(4) atoms. Both Gd(1)-Ni(1) bond lengths are 3.12 Å. There are two shorter (2.89 Å) and two longer (2.91 Å) Gd(1)-B(1) bond lengths. There are two shorter (2.89 Å) and two longer (2.91 Å) Gd(1)-B(2) bond lengths. There are two shorter (2.87 Å) and two longer (2.98 Å) Gd(1)-B(3) bond lengths. There are a spread of Gd(1)-B(4) bond distances ranging from 2.84-2.99 Å. Ni(1) is bonded in a 8-coordinate geometry to four equivalent Gd(1), two equivalent B(1), two equivalent B(3), and four equivalent B(4) atoms. Both Ni(1)-B(1) bond lengths are 2.13 Å. Both Ni(1)-B(3) bond lengths are 2.07 Å. All Ni(1)-B(4) bond lengths are 2.10 Å. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one Ni(1), one B(1), one B(2), and two equivalent B(4) atoms. The B(1)-B(1) bond length is 1.68 Å. The B(1)-B(2) bond length is 1.76 Å. Both B(1)-B(4) bond lengths are 1.78 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one B(1), two equivalent B(3), and two equivalent B(4) atoms. There is one shorter (1.66 Å) and one longer (1.74 Å) B(2)-B(3) bond length. Both B(2)-B(4) bond lengths are 1.74 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one Ni(1), two equivalent B(2), and two equivalent B(4) atoms. Both B(3)-B(4) bond lengths are 1.76 Å. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Gd(1), one Ni(1), one B(1), one B(2), one B(3), and one B(4) atom. The B(4)-B(4) bond length is 1.65 Å.