Dy2Ni12P7 crystallizes in the hexagonal P-6 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 18-coordinate geometry to three equivalent Ni(2), three equivalent Ni(4), six equivalent Ni(1), and six equivalent P(1) atoms. In the second Dy site, Dy(2) is bonded in a 15-coordinate geometry to three equivalent Ni(1), six equivalent Ni(2), and six equivalent P(3) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Dy(2), two equivalent Dy(1), two equivalent P(1), and two equivalent P(3) atoms to form distorted NiDy3P4 tetrahedra that share corners with two equivalent Ni(4)DyP4 tetrahedra, corners with six equivalent Ni(1)Dy3P4 tetrahedra, edges with two equivalent Ni(1)Dy3P4 tetrahedra, edges with two equivalent Ni(4)DyP4 tetrahedra, faces with two equivalent Ni(1)Dy3P4 tetrahedra, and faces with two equivalent Ni(4)DyP4 tetrahedra. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to one Dy(1), two equivalent Dy(2), two equivalent P(1), and two equivalent P(3) atoms. In the third Ni site, Ni(3) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. In the fourth Ni site, Ni(4) is bonded to one Dy(1), one P(2), one P(3), and two equivalent P(1) atoms to form distorted NiDyP4 tetrahedra that share corners with two equivalent Ni(1)Dy3P4 tetrahedra, corners with six equivalent Ni(4)DyP4 tetrahedra, edges with two equivalent Ni(1)Dy3P4 tetrahedra, and faces with two equivalent Ni(1)Dy3P4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Dy(1), one Ni(3), two equivalent Ni(1), two equivalent Ni(2), and two equivalent Ni(4) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Ni(4) and six equivalent Ni(3) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Dy(2), one Ni(4), two equivalent Ni(1), two equivalent Ni(2), and two equivalent Ni(3) atoms.
Dy2Ni12P7 crystallizes in the hexagonal P-6 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 18-coordinate geometry to three equivalent Ni(2), three equivalent Ni(4), six equivalent Ni(1), and six equivalent P(1) atoms. All Dy(1)-Ni(2) bond lengths are 3.19 Å. All Dy(1)-Ni(4) bond lengths are 3.05 Å. All Dy(1)-Ni(1) bond lengths are 2.99 Å. All Dy(1)-P(1) bond lengths are 2.87 Å. In the second Dy site, Dy(2) is bonded in a 15-coordinate geometry to three equivalent Ni(1), six equivalent Ni(2), and six equivalent P(3) atoms. All Dy(2)-Ni(1) bond lengths are 3.09 Å. All Dy(2)-Ni(2) bond lengths are 2.93 Å. All Dy(2)-P(3) bond lengths are 2.85 Å. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Dy(2), two equivalent Dy(1), two equivalent P(1), and two equivalent P(3) atoms to form distorted NiDy3P4 tetrahedra that share corners with two equivalent Ni(4)DyP4 tetrahedra, corners with six equivalent Ni(1)Dy3P4 tetrahedra, edges with two equivalent Ni(1)Dy3P4 tetrahedra, edges with two equivalent Ni(4)DyP4 tetrahedra, faces with two equivalent Ni(1)Dy3P4 tetrahedra, and faces with two equivalent Ni(4)DyP4 tetrahedra. There is one shorter (2.24 Å) and one longer (2.33 Å) Ni(1)-P(1) bond length. Both Ni(1)-P(3) bond lengths are 2.27 Å. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to one Dy(1), two equivalent Dy(2), two equivalent P(1), and two equivalent P(3) atoms. Both Ni(2)-P(1) bond lengths are 2.31 Å. There is one shorter (2.23 Å) and one longer (2.24 Å) Ni(2)-P(3) bond length. In the third Ni site, Ni(3) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. The Ni(3)-P(1) bond length is 2.27 Å. Both Ni(3)-P(2) bond lengths are 2.47 Å. Both Ni(3)-P(3) bond lengths are 2.56 Å. In the fourth Ni site, Ni(4) is bonded to one Dy(1), one P(2), one P(3), and two equivalent P(1) atoms to form distorted NiDyP4 tetrahedra that share corners with two equivalent Ni(1)Dy3P4 tetrahedra, corners with six equivalent Ni(4)DyP4 tetrahedra, edges with two equivalent Ni(1)Dy3P4 tetrahedra, and faces with two equivalent Ni(1)Dy3P4 tetrahedra. The Ni(4)-P(2) bond length is 2.13 Å. The Ni(4)-P(3) bond length is 2.20 Å. Both Ni(4)-P(1) bond lengths are 2.30 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Dy(1), one Ni(3), two equivalent Ni(1), two equivalent Ni(2), and two equivalent Ni(4) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Ni(4) and six equivalent Ni(3) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Dy(2), one Ni(4), two equivalent Ni(1), two equivalent Ni(2), and two equivalent Ni(3) atoms.