(Na2Zr(SiO3)6)2O2 crystallizes in the monoclinic C2 space group. The structure consists of two water atoms inside a Na2Zr(SiO3)6 framework. In the Na2Zr(SiO3)6 framework, Na(1) is bonded to one O(1), one O(10), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted NaO7 hexagonal pyramids that share  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  an edgeedge with one Zr(1)O6 octahedra,  an edgeedge with one Si(1)O4 tetrahedra,  an edgeedge with one Si(2)O4 tetrahedra, and  an edgeedge with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 74°. Zr(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form ZrO6 octahedra that share corners with two equivalent Na(1)O7 hexagonal pyramids, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, corners with two equivalent Si(3)O4 tetrahedra, and edges with two equivalent Na(1)O7 hexagonal pyramids. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(10), one O(4), one O(7), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(1)O7 hexagonal pyramid,  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and  an edgeedge with one Na(1)O7 hexagonal pyramid. The corner-sharing octahedral tilt angles are 32°. In the second Si site, Si(2) is bonded to one O(1), one O(10), one O(11), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(1)O7 hexagonal pyramid,  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  an edgeedge with one Na(1)O7 hexagonal pyramid. The corner-sharing octahedral tilt angles are 19°. In the third Si site, Si(3) is bonded to one O(3), one O(5), one O(6), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(1)O7 hexagonal pyramid,  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  an edgeedge with one Na(1)O7 hexagonal pyramid. The corner-sharing octahedral tilt angles are 29°. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Si(1), and one Si(2) atom. In the second O site, O(11) is bonded in a single-bond geometry to one Si(2) atom. In the third O site, O(1) is bonded in a 2-coordinate geometry to one Na(1), one Zr(1), and one Si(2) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one Zr(1), and one Si(3) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Zr(1), and one Si(1) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Si(3) atoms. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Na(1) and one Si(3) atom. In the eighth O site, O(7) is bonded in a linear geometry to two equivalent Si(1) atoms. In the ninth O site, O(8) is bonded in a distorted T-shaped geometry to one Na(1), one Si(2), and one Si(3) atom. In the tenth O site, O(9) is bonded in a bent 150 degrees geometry to one Na(1) and one Si(1) atom.
(Na2Zr(SiO3)6)2O2 crystallizes in the monoclinic C2 space group. The structure consists of two water atoms inside a Na2Zr(SiO3)6 framework. In the Na2Zr(SiO3)6 framework, Na(1) is bonded to one O(1), one O(10), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted NaO7 hexagonal pyramids that share  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  an edgeedge with one Zr(1)O6 octahedra,  an edgeedge with one Si(1)O4 tetrahedra,  an edgeedge with one Si(2)O4 tetrahedra, and  an edgeedge with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 74°. The Na(1)-O(1) bond length is 2.75 Å. The Na(1)-O(10) bond length is 2.55 Å. The Na(1)-O(3) bond length is 2.71 Å. The Na(1)-O(4) bond length is 2.65 Å. The Na(1)-O(6) bond length is 2.37 Å. The Na(1)-O(8) bond length is 2.58 Å. The Na(1)-O(9) bond length is 2.38 Å. Zr(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form ZrO6 octahedra that share corners with two equivalent Na(1)O7 hexagonal pyramids, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, corners with two equivalent Si(3)O4 tetrahedra, and edges with two equivalent Na(1)O7 hexagonal pyramids. Both Zr(1)-O(1) bond lengths are 2.08 Å. Both Zr(1)-O(3) bond lengths are 2.09 Å. Both Zr(1)-O(4) bond lengths are 2.14 Å. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(10), one O(4), one O(7), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(1)O7 hexagonal pyramid,  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and  an edgeedge with one Na(1)O7 hexagonal pyramid. The corner-sharing octahedral tilt angles are 32°. The Si(1)-O(10) bond length is 1.64 Å. The Si(1)-O(4) bond length is 1.62 Å. The Si(1)-O(7) bond length is 1.62 Å. The Si(1)-O(9) bond length is 1.63 Å. In the second Si site, Si(2) is bonded to one O(1), one O(10), one O(11), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(1)O7 hexagonal pyramid,  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  an edgeedge with one Na(1)O7 hexagonal pyramid. The corner-sharing octahedral tilt angles are 19°. The Si(2)-O(1) bond length is 1.61 Å. The Si(2)-O(10) bond length is 1.64 Å. The Si(2)-O(11) bond length is 1.65 Å. The Si(2)-O(8) bond length is 1.64 Å. In the third Si site, Si(3) is bonded to one O(3), one O(5), one O(6), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(1)O7 hexagonal pyramid,  a cornercorner with one Zr(1)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  an edgeedge with one Na(1)O7 hexagonal pyramid. The corner-sharing octahedral tilt angles are 29°. The Si(3)-O(3) bond length is 1.62 Å. The Si(3)-O(5) bond length is 1.63 Å. The Si(3)-O(6) bond length is 1.63 Å. The Si(3)-O(8) bond length is 1.64 Å. There are ten inequivalent O sites. In the first O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Si(1), and one Si(2) atom. In the second O site, O(11) is bonded in a single-bond geometry to one Si(2) atom. In the third O site, O(1) is bonded in a 2-coordinate geometry to one Na(1), one Zr(1), and one Si(2) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one Zr(1), and one Si(3) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Zr(1), and one Si(1) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Si(3) atoms. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Na(1) and one Si(3) atom. In the eighth O site, O(7) is bonded in a linear geometry to two equivalent Si(1) atoms. In the ninth O site, O(8) is bonded in a distorted T-shaped geometry to one Na(1), one Si(2), and one Si(3) atom. In the tenth O site, O(9) is bonded in a bent 150 degrees geometry to one Na(1) and one Si(1) atom.