Na3Zn3P3O16 crystallizes in the trigonal R3c space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. Zn(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form ZnO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with four equivalent Zn(1)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(1), one Zn(1), and one P(1) atom. In the second O site, O(5) is bonded in a distorted trigonal planar geometry to one Na(1), one Zn(1), and one P(1) atom. In the third O site, O(6) is bonded in a trigonal planar geometry to one Na(1), one Zn(1), and one P(1) atom. In the fourth O site, O(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent O(2) atoms. In the fifth O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one O(1) atom. In the sixth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom.
Na3Zn3P3O16 crystallizes in the trigonal R3c space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. The Na(1)-O(1) bond length is 2.47 Å. The Na(1)-O(4) bond length is 2.35 Å. The Na(1)-O(5) bond length is 2.35 Å. The Na(1)-O(6) bond length is 2.32 Å. There is one shorter (2.49 Å) and one longer (2.50 Å) Na(1)-O(2) bond length. Zn(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form ZnO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. The Zn(1)-O(3) bond length is 1.93 Å. The Zn(1)-O(4) bond length is 1.98 Å. The Zn(1)-O(5) bond length is 1.97 Å. The Zn(1)-O(6) bond length is 1.95 Å. P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with four equivalent Zn(1)O4 tetrahedra. The P(1)-O(3) bond length is 1.54 Å. The P(1)-O(4) bond length is 1.56 Å. The P(1)-O(5) bond length is 1.56 Å. The P(1)-O(6) bond length is 1.56 Å. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(1), one Zn(1), and one P(1) atom. In the second O site, O(5) is bonded in a distorted trigonal planar geometry to one Na(1), one Zn(1), and one P(1) atom. In the third O site, O(6) is bonded in a trigonal planar geometry to one Na(1), one Zn(1), and one P(1) atom. In the fourth O site, O(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent O(2) atoms. All O(1)-O(2) bond lengths are 1.83 Å. In the fifth O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one O(1) atom. In the sixth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom.