Na2Y3Te4(O4Cl)3 is Zircon-derived structured and crystallizes in the monoclinic C2/c space group. Na(1) is bonded in a 2-coordinate geometry to one O(1), one O(3), one O(6), one Cl(1), and three equivalent Cl(2) atoms. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the second Y site, Y(2) is bonded in a distorted body-centered cubic geometry to one O(1), one O(2), one O(3), one O(5), two equivalent O(4), and two equivalent O(6) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Y(1), one Y(2), and one Te(2) atom. In the second O site, O(6) is bonded to one Na(1), two equivalent Y(2), and one Te(2) atom to form a mixture of corner and edge-sharing ONaY2Te tetrahedra. In the third O site, O(1) is bonded to one Na(1), one Y(1), one Y(2), and one Te(1) atom to form a mixture of distorted corner and edge-sharing ONaY2Te tetrahedra. In the fourth O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Y(1), one Y(2), and one Te(1) atom. In the fifth O site, O(3) is bonded to one Na(1), one Y(1), one Y(2), and one Te(1) atom to form a mixture of corner and edge-sharing ONaY2Te tetrahedra. In the sixth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Y(2) and one Te(2) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a linear geometry to two equivalent Na(1) atoms. In the second Cl site, Cl(2) is bonded in a 3-coordinate geometry to three equivalent Na(1) atoms.
Na2Y3Te4(O4Cl)3 is Zircon-derived structured and crystallizes in the monoclinic C2/c space group. Na(1) is bonded in a 2-coordinate geometry to one O(1), one O(3), one O(6), one Cl(1), and three equivalent Cl(2) atoms. The Na(1)-O(1) bond length is 2.77 Å. The Na(1)-O(3) bond length is 2.30 Å. The Na(1)-O(6) bond length is 2.31 Å. The Na(1)-Cl(1) bond length is 3.04 Å. There are a spread of Na(1)-Cl(2) bond distances ranging from 3.03-3.30 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. Both Y(1)-O(1) bond lengths are 2.36 Å. Both Y(1)-O(2) bond lengths are 2.45 Å. Both Y(1)-O(3) bond lengths are 2.51 Å. Both Y(1)-O(5) bond lengths are 2.32 Å. In the second Y site, Y(2) is bonded in a distorted body-centered cubic geometry to one O(1), one O(2), one O(3), one O(5), two equivalent O(4), and two equivalent O(6) atoms. The Y(2)-O(1) bond length is 2.43 Å. The Y(2)-O(2) bond length is 2.32 Å. The Y(2)-O(3) bond length is 2.47 Å. The Y(2)-O(5) bond length is 2.39 Å. There is one shorter (2.33 Å) and one longer (2.44 Å) Y(2)-O(4) bond length. There is one shorter (2.47 Å) and one longer (2.49 Å) Y(2)-O(6) bond length. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. The Te(1)-O(1) bond length is 1.91 Å. The Te(1)-O(2) bond length is 1.92 Å. The Te(1)-O(3) bond length is 1.91 Å. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(4), one O(5), and one O(6) atom. The Te(2)-O(4) bond length is 1.90 Å. The Te(2)-O(5) bond length is 1.91 Å. The Te(2)-O(6) bond length is 1.92 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Y(1), one Y(2), and one Te(2) atom. In the second O site, O(6) is bonded to one Na(1), two equivalent Y(2), and one Te(2) atom to form a mixture of corner and edge-sharing ONaY2Te tetrahedra. In the third O site, O(1) is bonded to one Na(1), one Y(1), one Y(2), and one Te(1) atom to form a mixture of distorted corner and edge-sharing ONaY2Te tetrahedra. In the fourth O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Y(1), one Y(2), and one Te(1) atom. In the fifth O site, O(3) is bonded to one Na(1), one Y(1), one Y(2), and one Te(1) atom to form a mixture of corner and edge-sharing ONaY2Te tetrahedra. In the sixth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Y(2) and one Te(2) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a linear geometry to two equivalent Na(1) atoms. In the second Cl site, Cl(2) is bonded in a 3-coordinate geometry to three equivalent Na(1) atoms.