GdCo2Ni2B crystallizes in the orthorhombic Cmm2 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 6-coordinate geometry to six equivalent Ni(1) atoms. In the second Gd site, Gd(2) is bonded in a 18-coordinate geometry to two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), four equivalent Ni(2), and six equivalent B(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. In the second Co site, Co(2) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. In the third Co site, Co(3) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to three equivalent Gd(1), one Co(1), one Co(3), two equivalent Co(2), and two equivalent Ni(2) atoms. In the second Ni site, Ni(2) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to three equivalent Gd(2), one Co(1), one Co(3), two equivalent Co(2), and two equivalent Ni(2) atoms.
GdCo2Ni2B crystallizes in the orthorhombic Cmm2 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 6-coordinate geometry to six equivalent Ni(1) atoms. There are four shorter (2.89 Å) and two longer (2.93 Å) Gd(1)-Ni(1) bond lengths. In the second Gd site, Gd(2) is bonded in a 18-coordinate geometry to two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), four equivalent Ni(2), and six equivalent B(1) atoms. Both Gd(2)-Co(1) bond lengths are 2.88 Å. Both Gd(2)-Co(3) bond lengths are 2.88 Å. All Gd(2)-Co(2) bond lengths are 2.89 Å. All Gd(2)-Ni(2) bond lengths are 2.90 Å. There are four shorter (2.90 Å) and two longer (2.92 Å) Gd(2)-B(1) bond lengths. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. Both Co(1)-Ni(1) bond lengths are 2.47 Å. Both Co(1)-B(1) bond lengths are 2.03 Å. In the second Co site, Co(2) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. Both Co(2)-Ni(1) bond lengths are 2.46 Å. Both Co(2)-B(1) bond lengths are 2.03 Å. In the third Co site, Co(3) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. Both Co(3)-Ni(1) bond lengths are 2.46 Å. Both Co(3)-B(1) bond lengths are 2.01 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to three equivalent Gd(1), one Co(1), one Co(3), two equivalent Co(2), and two equivalent Ni(2) atoms. Both Ni(1)-Ni(2) bond lengths are 2.48 Å. In the second Ni site, Ni(2) is bonded in a distorted L-shaped geometry to two equivalent Gd(2), two equivalent Ni(1), and two equivalent B(1) atoms. Both Ni(2)-B(1) bond lengths are 2.05 Å. B(1) is bonded in a 6-coordinate geometry to three equivalent Gd(2), one Co(1), one Co(3), two equivalent Co(2), and two equivalent Ni(2) atoms.