The structure described by (Na2ZrSi6O15)2(O2)3 crystallizes in the orthorhombic Pma2 space group. The structure consists of two trioxidane molecules inside a Na2ZrSi6O15 framework. In the Na2ZrSi6O15 framework, there are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(7), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(8) atoms. Zr(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form ZrO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form SiO4 tetrahedra 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, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 31°. In the second Si site, Si(2) is bonded to one O(6), one O(7), one O(8), and one O(9) atom to form SiO4 tetrahedra 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, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. In the third Si site, Si(3) is bonded to one O(3), one O(4), one O(5), and one O(9) atom to form SiO4 tetrahedra 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, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 13°. There are nine inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent Si(2) atoms. In the third O site, O(8) is bonded in a 3-coordinate geometry to one Na(2), one Zr(1), and one Si(2) atom. In the fourth O site, O(9) is bonded in a bent 150 degrees geometry to one Si(2) and one Si(3) atom. In the fifth O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(1) and two equivalent Si(1) atoms. In the sixth O site, O(2) is bonded in a 3-coordinate geometry to one Na(2), one Zr(1), and one Si(1) atom. In the seventh O site, O(3) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(3) atom. In the eighth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent Si(3) atoms. In the ninth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one Zr(1), and one Si(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2Zr(SiO3)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.595
_cell_length_b   7.441
_cell_length_c   7.291
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   791.759
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  1  0.250  0.034  0.981  1.0
  Na  Na1  1  0.750  0.966  0.981  1.0
  Na  Na2  1  0.500  0.000  0.501  1.0
  Na  Na3  1  0.000  0.000  0.501  1.0
  Zr  Zr4  1  0.500  0.000  0.005  1.0
  Zr  Zr5  1  0.000  0.000  0.005  1.0
  Si  Si6  1  0.358  0.716  0.285  1.0
  Si  Si7  1  0.642  0.284  0.285  1.0
  Si  Si8  1  0.142  0.716  0.285  1.0
  Si  Si9  1  0.858  0.284  0.285  1.0
  Si  Si10  1  0.358  0.720  0.724  1.0
  Si  Si11  1  0.642  0.280  0.724  1.0
  Si  Si12  1  0.142  0.720  0.724  1.0
  Si  Si13  1  0.858  0.280  0.724  1.0
  Si  Si14  1  0.360  0.408  0.006  1.0
  Si  Si15  1  0.640  0.592  0.006  1.0
  Si  Si16  1  0.140  0.408  0.006  1.0
  Si  Si17  1  0.860  0.592  0.006  1.0
  O  O18  1  0.250  0.763  0.239  1.0
  O  O19  1  0.750  0.237  0.239  1.0
  O  O20  1  0.420  0.882  0.216  1.0
  O  O21  1  0.580  0.118  0.216  1.0
  O  O22  1  0.080  0.882  0.216  1.0
  O  O23  1  0.920  0.118  0.216  1.0
  O  O24  1  0.386  0.525  0.190  1.0
  O  O25  1  0.614  0.475  0.190  1.0
  O  O26  1  0.114  0.525  0.190  1.0
  O  O27  1  0.886  0.475  0.190  1.0
  O  O28  1  0.250  0.361  0.013  1.0
  O  O29  1  0.750  0.639  0.013  1.0
  O  O30  1  0.410  0.216  1.000  1.0
  O  O31  1  0.590  0.784  1.000  1.0
  O  O32  1  0.090  0.216  1.000  1.0
  O  O33  1  0.910  0.784  1.000  1.0
  O  O34  1  0.372  0.689  0.505  1.0
  O  O35  1  0.628  0.311  0.505  1.0
  O  O36  1  0.128  0.689  0.505  1.0
  O  O37  1  0.872  0.311  0.505  1.0
  O  O38  1  0.250  0.778  0.768  1.0
  O  O39  1  0.750  0.222  0.768  1.0
  O  O40  1  0.420  0.885  0.792  1.0
  O  O41  1  0.580  0.115  0.792  1.0
  O  O42  1  0.080  0.885  0.792  1.0
  O  O43  1  0.920  0.115  0.792  1.0
  O  O44  1  0.381  0.530  0.825  1.0
  O  O45  1  0.619  0.470  0.825  1.0
  O  O46  1  0.119  0.530  0.825  1.0
  O  O47  1  0.881  0.470  0.825  1.0
  O  O48  1  0.250  0.176  0.434  1.0
  O  O49  1  0.750  0.824  0.434  1.0
  O  O50  1  0.326  0.255  0.479  1.0
  O  O51  1  0.674  0.745  0.479  1.0
  O  O52  1  0.174  0.255  0.479  1.0
  O  O53  1  0.826  0.745  0.479  1.0
[/CIF]
.
The structure described by (Na2ZrSi6O15)2(O2)3 crystallizes in the orthorhombic Pma2 space group. The structure consists of two trioxidane molecules inside a Na2ZrSi6O15 framework. In the Na2ZrSi6O15 framework, there are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(7), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(8) atoms. Zr(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form ZrO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form SiO4 tetrahedra 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, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 31°. In the second Si site, Si(2) is bonded to one O(6), one O(7), one O(8), and one O(9) atom to form SiO4 tetrahedra 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, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. In the third Si site, Si(3) is bonded to one O(3), one O(4), one O(5), and one O(9) atom to form SiO4 tetrahedra 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, and  a cornercorner with one Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 13°. There are nine inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent Si(2) atoms. In the third O site, O(8) is bonded in a 3-coordinate geometry to one Na(2), one Zr(1), and one Si(2) atom. In the fourth O site, O(9) is bonded in a bent 150 degrees geometry to one Si(2) and one Si(3) atom. In the fifth O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(1) and two equivalent Si(1) atoms. In the sixth O site, O(2) is bonded in a 3-coordinate geometry to one Na(2), one Zr(1), and one Si(1) atom. In the seventh O site, O(3) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(3) atom. In the eighth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent Si(3) atoms. In the ninth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one Zr(1), and one Si(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2Zr(SiO3)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.595
_cell_length_b   7.441
_cell_length_c   7.291
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   791.759
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  1  0.250  0.034  0.981  1.0
  Na  Na1  1  0.750  0.966  0.981  1.0
  Na  Na2  1  0.500  0.000  0.501  1.0
  Na  Na3  1  0.000  0.000  0.501  1.0
  Zr  Zr4  1  0.500  0.000  0.005  1.0
  Zr  Zr5  1  0.000  0.000  0.005  1.0
  Si  Si6  1  0.358  0.716  0.285  1.0
  Si  Si7  1  0.642  0.284  0.285  1.0
  Si  Si8  1  0.142  0.716  0.285  1.0
  Si  Si9  1  0.858  0.284  0.285  1.0
  Si  Si10  1  0.358  0.720  0.724  1.0
  Si  Si11  1  0.642  0.280  0.724  1.0
  Si  Si12  1  0.142  0.720  0.724  1.0
  Si  Si13  1  0.858  0.280  0.724  1.0
  Si  Si14  1  0.360  0.408  0.006  1.0
  Si  Si15  1  0.640  0.592  0.006  1.0
  Si  Si16  1  0.140  0.408  0.006  1.0
  Si  Si17  1  0.860  0.592  0.006  1.0
  O  O18  1  0.250  0.763  0.239  1.0
  O  O19  1  0.750  0.237  0.239  1.0
  O  O20  1  0.420  0.882  0.216  1.0
  O  O21  1  0.580  0.118  0.216  1.0
  O  O22  1  0.080  0.882  0.216  1.0
  O  O23  1  0.920  0.118  0.216  1.0
  O  O24  1  0.386  0.525  0.190  1.0
  O  O25  1  0.614  0.475  0.190  1.0
  O  O26  1  0.114  0.525  0.190  1.0
  O  O27  1  0.886  0.475  0.190  1.0
  O  O28  1  0.250  0.361  0.013  1.0
  O  O29  1  0.750  0.639  0.013  1.0
  O  O30  1  0.410  0.216  1.000  1.0
  O  O31  1  0.590  0.784  1.000  1.0
  O  O32  1  0.090  0.216  1.000  1.0
  O  O33  1  0.910  0.784  1.000  1.0
  O  O34  1  0.372  0.689  0.505  1.0
  O  O35  1  0.628  0.311  0.505  1.0
  O  O36  1  0.128  0.689  0.505  1.0
  O  O37  1  0.872  0.311  0.505  1.0
  O  O38  1  0.250  0.778  0.768  1.0
  O  O39  1  0.750  0.222  0.768  1.0
  O  O40  1  0.420  0.885  0.792  1.0
  O  O41  1  0.580  0.115  0.792  1.0
  O  O42  1  0.080  0.885  0.792  1.0
  O  O43  1  0.920  0.115  0.792  1.0
  O  O44  1  0.381  0.530  0.825  1.0
  O  O45  1  0.619  0.470  0.825  1.0
  O  O46  1  0.119  0.530  0.825  1.0
  O  O47  1  0.881  0.470  0.825  1.0
  O  O48  1  0.250  0.176  0.434  1.0
  O  O49  1  0.750  0.824  0.434  1.0
  O  O50  1  0.326  0.255  0.479  1.0
  O  O51  1  0.674  0.745  0.479  1.0
  O  O52  1  0.174  0.255  0.479  1.0
  O  O53  1  0.826  0.745  0.479  1.0
[/CIF]
.