Y2Ni12P7 crystallizes in the hexagonal P-6 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 18-coordinate geometry to three equivalent Ni(1), three equivalent Ni(2), six equivalent Ni(3), and six equivalent P(2) atoms. In the second Y site, Y(2) is bonded in a 15-coordinate geometry to three equivalent Ni(3), six equivalent Ni(1), and six equivalent P(1) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to one Y(1), two equivalent Y(2), two equivalent P(1), and two equivalent P(2) atoms. In the second Ni site, Ni(2) is bonded to one Y(1), one P(1), one P(3), and two equivalent P(2) atoms to form distorted NiYP4 tetrahedra that share corners with two equivalent Ni(3)Y3P4 tetrahedra, corners with six equivalent Ni(2)YP4 tetrahedra, edges with two equivalent Ni(3)Y3P4 tetrahedra, and faces with two equivalent Ni(3)Y3P4 tetrahedra. In the third Ni site, Ni(3) is bonded to one Y(2), two equivalent Y(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted NiY3P4 tetrahedra that share corners with two equivalent Ni(2)YP4 tetrahedra, corners with six equivalent Ni(3)Y3P4 tetrahedra, edges with two equivalent Ni(3)Y3P4 tetrahedra, edges with two equivalent Ni(2)YP4 tetrahedra, faces with two equivalent Ni(3)Y3P4 tetrahedra, and faces with two equivalent Ni(2)YP4 tetrahedra. In the fourth Ni site, Ni(4) is bonded in a 5-coordinate geometry to one P(2), two equivalent P(1), and two equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), one Ni(2), two equivalent Ni(1), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Y(1), one Ni(4), two equivalent Ni(1), two equivalent Ni(2), and two equivalent Ni(3) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to three equivalent Ni(2) and six equivalent Ni(4) atoms.
Y2Ni12P7 crystallizes in the hexagonal P-6 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 18-coordinate geometry to three equivalent Ni(1), three equivalent Ni(2), six equivalent Ni(3), and six equivalent P(2) atoms. All Y(1)-Ni(1) bond lengths are 3.19 Å. All Y(1)-Ni(2) bond lengths are 3.07 Å. All Y(1)-Ni(3) bond lengths are 3.01 Å. All Y(1)-P(2) bond lengths are 2.87 Å. In the second Y site, Y(2) is bonded in a 15-coordinate geometry to three equivalent Ni(3), six equivalent Ni(1), and six equivalent P(1) atoms. All Y(2)-Ni(3) bond lengths are 3.10 Å. All Y(2)-Ni(1) bond lengths are 2.95 Å. All Y(2)-P(1) bond lengths are 2.86 Å. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to one Y(1), two equivalent Y(2), two equivalent P(1), and two equivalent P(2) atoms. There is one shorter (2.24 Å) and one longer (2.26 Å) Ni(1)-P(1) bond length. Both Ni(1)-P(2) bond lengths are 2.32 Å. In the second Ni site, Ni(2) is bonded to one Y(1), one P(1), one P(3), and two equivalent P(2) atoms to form distorted NiYP4 tetrahedra that share corners with two equivalent Ni(3)Y3P4 tetrahedra, corners with six equivalent Ni(2)YP4 tetrahedra, edges with two equivalent Ni(3)Y3P4 tetrahedra, and faces with two equivalent Ni(3)Y3P4 tetrahedra. The Ni(2)-P(1) bond length is 2.21 Å. The Ni(2)-P(3) bond length is 2.14 Å. Both Ni(2)-P(2) bond lengths are 2.31 Å. In the third Ni site, Ni(3) is bonded to one Y(2), two equivalent Y(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted NiY3P4 tetrahedra that share corners with two equivalent Ni(2)YP4 tetrahedra, corners with six equivalent Ni(3)Y3P4 tetrahedra, edges with two equivalent Ni(3)Y3P4 tetrahedra, edges with two equivalent Ni(2)YP4 tetrahedra, faces with two equivalent Ni(3)Y3P4 tetrahedra, and faces with two equivalent Ni(2)YP4 tetrahedra. Both Ni(3)-P(1) bond lengths are 2.28 Å. There is one shorter (2.26 Å) and one longer (2.34 Å) Ni(3)-P(2) bond length. In the fourth Ni site, Ni(4) is bonded in a 5-coordinate geometry to one P(2), two equivalent P(1), and two equivalent P(3) atoms. The Ni(4)-P(2) bond length is 2.28 Å. Both Ni(4)-P(1) bond lengths are 2.54 Å. Both Ni(4)-P(3) bond lengths are 2.50 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), one Ni(2), two equivalent Ni(1), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Y(1), one Ni(4), two equivalent Ni(1), two equivalent Ni(2), and two equivalent Ni(3) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to three equivalent Ni(2) and six equivalent Ni(4) atoms.