The compound described by Na10Be4Si4O17 crystallizes in the cubic P-43m space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. In the third Na site, Na(3) is bonded in a rectangular see-saw-like geometry to four equivalent O(1) atoms. Be(1) is bonded to one O(3) and three equivalent O(1) atoms to form BeO4 tetrahedra that share corners with three equivalent Be(1)O4 tetrahedra and corners with three equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(2) and three equivalent O(1) atoms to form SiO4 tetrahedra that share corners with three equivalent Be(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(3) is bonded in a tetrahedral geometry to four equivalent Be(1) atoms. In the second O site, O(1) is bonded in a 2-coordinate geometry to one Na(1), one Na(3), two equivalent Na(2), one Be(1), and one Si(1) atom. In the third O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na10Be4Si4O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.350
_cell_length_b   7.350
_cell_length_c   7.350
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   397.074
_cell_formula_units_Z   1
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  0.341  0.659  0.341  1.0
  Na  Na1  1  0.659  0.659  0.659  1.0
  Na  Na2  1  0.000  0.000  0.500  1.0
  Na  Na3  1  0.659  0.341  0.341  1.0
  Na  Na4  1  0.500  0.500  0.000  1.0
  Na  Na5  1  0.341  0.341  0.659  1.0
  Na  Na6  1  0.000  0.500  0.500  1.0
  Na  Na7  1  0.000  0.500  0.000  1.0
  Na  Na8  1  0.500  0.000  0.500  1.0
  Na  Na9  1  0.500  0.000  0.000  1.0
  Be  Be10  1  0.867  0.867  0.867  1.0
  Be  Be11  1  0.133  0.867  0.133  1.0
  Be  Be12  1  0.867  0.133  0.133  1.0
  Be  Be13  1  0.133  0.133  0.867  1.0
  Si  Si14  1  0.780  0.780  0.220  1.0
  Si  Si15  1  0.220  0.220  0.220  1.0
  Si  Si16  1  0.780  0.220  0.780  1.0
  Si  Si17  1  0.220  0.780  0.780  1.0
  O  O18  1  0.260  1.000  0.260  1.0
  O  O19  1  0.346  0.654  0.654  1.0
  O  O20  1  1.000  0.740  0.740  1.0
  O  O21  1  0.740  1.000  0.740  1.0
  O  O22  1  0.000  0.260  0.740  1.0
  O  O23  1  1.000  0.260  0.260  1.0
  O  O24  1  0.260  0.260  1.000  1.0
  O  O25  1  0.654  0.654  0.346  1.0
  O  O26  1  0.740  0.260  0.000  1.0
  O  O27  1  0.740  0.740  1.000  1.0
  O  O28  1  0.260  0.000  0.740  1.0
  O  O29  1  0.654  0.346  0.654  1.0
  O  O30  1  0.346  0.346  0.346  1.0
  O  O31  1  0.000  0.740  0.260  1.0
  O  O32  1  0.740  0.000  0.260  1.0
  O  O33  1  0.260  0.740  0.000  1.0
  O  O34  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Na10Be4Si4O17 crystallizes in the cubic P-43m space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. In the third Na site, Na(3) is bonded in a rectangular see-saw-like geometry to four equivalent O(1) atoms. Be(1) is bonded to one O(3) and three equivalent O(1) atoms to form BeO4 tetrahedra that share corners with three equivalent Be(1)O4 tetrahedra and corners with three equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(2) and three equivalent O(1) atoms to form SiO4 tetrahedra that share corners with three equivalent Be(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(3) is bonded in a tetrahedral geometry to four equivalent Be(1) atoms. In the second O site, O(1) is bonded in a 2-coordinate geometry to one Na(1), one Na(3), two equivalent Na(2), one Be(1), and one Si(1) atom. In the third O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na10Be4Si4O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.350
_cell_length_b   7.350
_cell_length_c   7.350
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   397.074
_cell_formula_units_Z   1
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  0.341  0.659  0.341  1.0
  Na  Na1  1  0.659  0.659  0.659  1.0
  Na  Na2  1  0.000  0.000  0.500  1.0
  Na  Na3  1  0.659  0.341  0.341  1.0
  Na  Na4  1  0.500  0.500  0.000  1.0
  Na  Na5  1  0.341  0.341  0.659  1.0
  Na  Na6  1  0.000  0.500  0.500  1.0
  Na  Na7  1  0.000  0.500  0.000  1.0
  Na  Na8  1  0.500  0.000  0.500  1.0
  Na  Na9  1  0.500  0.000  0.000  1.0
  Be  Be10  1  0.867  0.867  0.867  1.0
  Be  Be11  1  0.133  0.867  0.133  1.0
  Be  Be12  1  0.867  0.133  0.133  1.0
  Be  Be13  1  0.133  0.133  0.867  1.0
  Si  Si14  1  0.780  0.780  0.220  1.0
  Si  Si15  1  0.220  0.220  0.220  1.0
  Si  Si16  1  0.780  0.220  0.780  1.0
  Si  Si17  1  0.220  0.780  0.780  1.0
  O  O18  1  0.260  1.000  0.260  1.0
  O  O19  1  0.346  0.654  0.654  1.0
  O  O20  1  1.000  0.740  0.740  1.0
  O  O21  1  0.740  1.000  0.740  1.0
  O  O22  1  0.000  0.260  0.740  1.0
  O  O23  1  1.000  0.260  0.260  1.0
  O  O24  1  0.260  0.260  1.000  1.0
  O  O25  1  0.654  0.654  0.346  1.0
  O  O26  1  0.740  0.260  0.000  1.0
  O  O27  1  0.740  0.740  1.000  1.0
  O  O28  1  0.260  0.000  0.740  1.0
  O  O29  1  0.654  0.346  0.654  1.0
  O  O30  1  0.346  0.346  0.346  1.0
  O  O31  1  0.000  0.740  0.260  1.0
  O  O32  1  0.740  0.000  0.260  1.0
  O  O33  1  0.260  0.740  0.000  1.0
  O  O34  1  0.000  0.000  0.000  1.0
[/CIF]
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