SrNiZn(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(6) atom. Ni(1) is bonded in a distorted bent 150 degrees geometry to one O(4), one O(7), and one O(8) atom. Zn(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(7), and one O(8) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(7) atom. In the second P site, P(2) is bonded in a 1-coordinate geometry to one O(4), one O(5), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one P(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one Zn(1) and one P(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Ni(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one P(2) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Ni(1), one Zn(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Ni(1), one Zn(1), and one P(2) atom.
SrNiZn(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(6) atom. The Sr(1)-O(1) bond length is 1.75 Å. The Sr(1)-O(3) bond length is 2.08 Å. The Sr(1)-O(6) bond length is 2.15 Å. Ni(1) is bonded in a distorted bent 150 degrees geometry to one O(4), one O(7), and one O(8) atom. The Ni(1)-O(4) bond length is 1.34 Å. The Ni(1)-O(7) bond length is 1.38 Å. The Ni(1)-O(8) bond length is 2.23 Å. Zn(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(7), and one O(8) atom. The Zn(1)-O(2) bond length is 1.56 Å. The Zn(1)-O(4) bond length is 2.41 Å. The Zn(1)-O(7) bond length is 1.90 Å. The Zn(1)-O(8) bond length is 2.35 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(7) atom. The P(1)-O(1) bond length is 1.88 Å. The P(1)-O(2) bond length is 1.74 Å. The P(1)-O(3) bond length is 1.55 Å. The P(1)-O(7) bond length is 1.96 Å. In the second P site, P(2) is bonded in a 1-coordinate geometry to one O(4), one O(5), one O(6), and one O(8) atom. The P(2)-O(4) bond length is 1.59 Å. The P(2)-O(5) bond length is 1.06 Å. The P(2)-O(6) bond length is 2.24 Å. The P(2)-O(8) bond length is 2.04 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one P(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one Zn(1) and one P(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Ni(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one P(2) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Ni(1), one Zn(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Ni(1), one Zn(1), and one P(2) atom.