The crystal structure described by Na5MgSbO5 crystallizes in the monoclinic C2/m space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one Mg(1), one O(2), one O(3), and three equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one Mg(1), one O(1), one O(3), and three equivalent O(2) atoms. In the third Na site, Na(3) is bonded to two equivalent Mg(1), two equivalent O(1), and two equivalent O(2) atoms to form distorted NaMg2O4 octahedra that share corners with two equivalent Na(3)Mg2O4 octahedra and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedra are not tilted. Mg(1) is bonded to two equivalent Na(1), two equivalent Na(2), and two equivalent Na(3) atoms to form MgNa6 octahedra that share corners with two equivalent Mg(1)Na6 octahedra, corners with four equivalent O(1)Na5Sb octahedra, edges with two equivalent O(3)Na4Sb2 octahedra, and edges with four equivalent O(1)Na5Sb octahedra. The corner-sharing octahedral tilt angles range from 0-13°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and edges with two equivalent Na(3)Mg2O4 octahedra. The corner-sharing octahedra are not tilted. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), one Na(3), three equivalent Na(1), and one Sb(1) atom to form distorted ONa5Sb octahedra that share corners with two equivalent Mg(1)Na6 octahedra, corners with four equivalent O(1)Na5Sb octahedra, edges with two equivalent Mg(1)Na6 octahedra, edges with two equivalent O(1)Na5Sb octahedra, and edges with three equivalent O(3)Na4Sb2 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Na(1), one Na(3), three equivalent Na(2), and one Sb(1) atom. In the third O site, O(3) is bonded to two equivalent Na(1), two equivalent Na(2), and two equivalent Sb(1) atoms to form ONa4Sb2 octahedra that share corners with two equivalent O(3)Na4Sb2 octahedra, edges with two equivalent Mg(1)Na6 octahedra, and edges with six equivalent O(1)Na5Sb octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_Na5MgSbO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.830
_cell_length_b   6.031
_cell_length_c   6.702
_cell_angle_alpha   74.924
_cell_angle_beta   90.000
_cell_angle_gamma   66.395
_symmetry_Int_Tables_number   1
_cell_volume   171.508
_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  0.686  0.627  0.886  1.0
  Na  Na1  1  0.704  0.592  0.309  1.0
  Na  Na2  1  0.296  0.408  0.691  1.0
  Na  Na3  1  0.314  0.373  0.114  1.0
  Na  Na4  1  0.000  0.000  0.500  1.0
  Mg  Mg5  1  0.500  0.000  0.500  1.0
  Sb  Sb6  1  0.000  0.000  0.000  1.0
  O  O7  1  0.130  0.740  0.841  1.0
  O  O8  1  0.139  0.723  0.272  1.0
  O  O9  1  0.861  0.277  0.728  1.0
  O  O10  1  0.870  0.260  0.159  1.0
  O  O11  1  0.500  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Na5MgSbO5 crystallizes in the monoclinic C2/m space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one Mg(1), one O(2), one O(3), and three equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one Mg(1), one O(1), one O(3), and three equivalent O(2) atoms. In the third Na site, Na(3) is bonded to two equivalent Mg(1), two equivalent O(1), and two equivalent O(2) atoms to form distorted NaMg2O4 octahedra that share corners with two equivalent Na(3)Mg2O4 octahedra and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedra are not tilted. Mg(1) is bonded to two equivalent Na(1), two equivalent Na(2), and two equivalent Na(3) atoms to form MgNa6 octahedra that share corners with two equivalent Mg(1)Na6 octahedra, corners with four equivalent O(1)Na5Sb octahedra, edges with two equivalent O(3)Na4Sb2 octahedra, and edges with four equivalent O(1)Na5Sb octahedra. The corner-sharing octahedral tilt angles range from 0-13°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and edges with two equivalent Na(3)Mg2O4 octahedra. The corner-sharing octahedra are not tilted. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), one Na(3), three equivalent Na(1), and one Sb(1) atom to form distorted ONa5Sb octahedra that share corners with two equivalent Mg(1)Na6 octahedra, corners with four equivalent O(1)Na5Sb octahedra, edges with two equivalent Mg(1)Na6 octahedra, edges with two equivalent O(1)Na5Sb octahedra, and edges with three equivalent O(3)Na4Sb2 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Na(1), one Na(3), three equivalent Na(2), and one Sb(1) atom. In the third O site, O(3) is bonded to two equivalent Na(1), two equivalent Na(2), and two equivalent Sb(1) atoms to form ONa4Sb2 octahedra that share corners with two equivalent O(3)Na4Sb2 octahedra, edges with two equivalent Mg(1)Na6 octahedra, and edges with six equivalent O(1)Na5Sb octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_Na5MgSbO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.830
_cell_length_b   6.031
_cell_length_c   6.702
_cell_angle_alpha   74.924
_cell_angle_beta   90.000
_cell_angle_gamma   66.395
_symmetry_Int_Tables_number   1
_cell_volume   171.508
_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  0.686  0.627  0.886  1.0
  Na  Na1  1  0.704  0.592  0.309  1.0
  Na  Na2  1  0.296  0.408  0.691  1.0
  Na  Na3  1  0.314  0.373  0.114  1.0
  Na  Na4  1  0.000  0.000  0.500  1.0
  Mg  Mg5  1  0.500  0.000  0.500  1.0
  Sb  Sb6  1  0.000  0.000  0.000  1.0
  O  O7  1  0.130  0.740  0.841  1.0
  O  O8  1  0.139  0.723  0.272  1.0
  O  O9  1  0.861  0.277  0.728  1.0
  O  O10  1  0.870  0.260  0.159  1.0
  O  O11  1  0.500  0.000  0.000  1.0
[/CIF]
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