Sr(NiB)2 crystallizes in the orthorhombic Pnnm space group. Sr(1) is bonded in a 5-coordinate geometry to three equivalent Ni(2) and two equivalent B(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to two equivalent B(1) and two equivalent B(2) atoms. In the second Ni site, Ni(2) is bonded in a 6-coordinate geometry to three equivalent Sr(1) and three equivalent B(2) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Ni(1), one B(1), and one B(2) atom. In the second B site, B(2) is bonded in a 6-coordinate geometry to two equivalent Ni(1), three equivalent Ni(2), and one B(1) atom.
Sr(NiB)2 crystallizes in the orthorhombic Pnnm space group. Sr(1) is bonded in a 5-coordinate geometry to three equivalent Ni(2) and two equivalent B(1) atoms. There is one shorter (2.68 Å) and two longer (2.89 Å) Sr(1)-Ni(2) bond lengths. There is one shorter (2.75 Å) and one longer (2.78 Å) Sr(1)-B(1) bond length. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to two equivalent B(1) and two equivalent B(2) atoms. Both Ni(1)-B(1) bond lengths are 2.07 Å. Both Ni(1)-B(2) bond lengths are 2.00 Å. In the second Ni site, Ni(2) is bonded in a 6-coordinate geometry to three equivalent Sr(1) and three equivalent B(2) atoms. There are two shorter (2.11 Å) and one longer (2.18 Å) Ni(2)-B(2) bond length. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Ni(1), one B(1), and one B(2) atom. The B(1)-B(1) bond length is 1.70 Å. The B(1)-B(2) bond length is 1.82 Å. In the second B site, B(2) is bonded in a 6-coordinate geometry to two equivalent Ni(1), three equivalent Ni(2), and one B(1) atom.