The compound described by Na3SbO4 is Caswellsilverite-like structured and crystallizes in the monoclinic P2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Na(2)O6 octahedra, corners with four equivalent Na(3)O6 octahedra, edges with two equivalent Na(1)O6 octahedra, edges with two equivalent Na(3)O6 octahedra, edges with four equivalent Na(2)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-21°. In the second Na site, Na(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, edges with two equivalent Na(2)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with four equivalent Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-21°. In the third Na site, Na(3) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted NaO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent Na(1)O6 octahedra, edges with two equivalent Na(1)O6 octahedra, edges with two equivalent Na(3)O6 octahedra, edges with four equivalent Na(2)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-18°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with two equivalent Na(3)O6 octahedra, corners with four equivalent Na(2)O6 octahedra, edges with two equivalent Na(2)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with four equivalent Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-14°. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one Sb(1) atom to form distorted ONa5Sb octahedra that share corners with two equivalent O(1)Na5Sb octahedra, corners with four equivalent O(2)Na4Sb2 octahedra, edges with six equivalent O(2)Na4Sb2 octahedra, and edges with six equivalent O(1)Na5Sb octahedra. The corner-sharing octahedral tilt angles range from 8-22°. In the second O site, O(2) is bonded to one Na(1), one Na(2), two equivalent Na(3), and two equivalent Sb(1) atoms to form distorted ONa4Sb2 octahedra that share corners with two equivalent O(2)Na4Sb2 octahedra, corners with four equivalent O(1)Na5Sb octahedra, edges with six equivalent O(2)Na4Sb2 octahedra, and edges with six equivalent O(1)Na5Sb octahedra. The corner-sharing octahedral tilt angles range from 8-13°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3SbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.416
_cell_length_b   5.754
_cell_length_c   6.546
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.462
_symmetry_Int_Tables_number   1
_cell_volume   192.338
_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  0.750  0.000  0.385  1.0
  Na  Na1  1  0.250  0.500  0.400  1.0
  Na  Na2  1  0.750  0.500  0.125  1.0
  Na  Na3  1  0.250  0.500  0.875  1.0
  Na  Na4  1  0.250  0.000  0.615  1.0
  Na  Na5  1  0.750  0.500  0.600  1.0
  Sb  Sb6  1  0.750  0.000  0.868  1.0
  Sb  Sb7  1  0.250  0.000  0.132  1.0
  O  O8  1  0.960  0.228  0.666  1.0
  O  O9  1  0.540  0.772  0.666  1.0
  O  O10  1  0.040  0.772  0.334  1.0
  O  O11  1  0.460  0.228  0.334  1.0
  O  O12  1  0.499  0.197  0.903  1.0
  O  O13  1  0.001  0.803  0.903  1.0
  O  O14  1  0.999  0.197  0.097  1.0
  O  O15  1  0.501  0.803  0.097  1.0
[/CIF]
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The compound described by Na3SbO4 is Caswellsilverite-like structured and crystallizes in the monoclinic P2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Na(2)O6 octahedra, corners with four equivalent Na(3)O6 octahedra, edges with two equivalent Na(1)O6 octahedra, edges with two equivalent Na(3)O6 octahedra, edges with four equivalent Na(2)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-21°. In the second Na site, Na(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, edges with two equivalent Na(2)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with four equivalent Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-21°. In the third Na site, Na(3) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted NaO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent Na(1)O6 octahedra, edges with two equivalent Na(1)O6 octahedra, edges with two equivalent Na(3)O6 octahedra, edges with four equivalent Na(2)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-18°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with two equivalent Na(3)O6 octahedra, corners with four equivalent Na(2)O6 octahedra, edges with two equivalent Na(2)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with four equivalent Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-14°. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one Sb(1) atom to form distorted ONa5Sb octahedra that share corners with two equivalent O(1)Na5Sb octahedra, corners with four equivalent O(2)Na4Sb2 octahedra, edges with six equivalent O(2)Na4Sb2 octahedra, and edges with six equivalent O(1)Na5Sb octahedra. The corner-sharing octahedral tilt angles range from 8-22°. In the second O site, O(2) is bonded to one Na(1), one Na(2), two equivalent Na(3), and two equivalent Sb(1) atoms to form distorted ONa4Sb2 octahedra that share corners with two equivalent O(2)Na4Sb2 octahedra, corners with four equivalent O(1)Na5Sb octahedra, edges with six equivalent O(2)Na4Sb2 octahedra, and edges with six equivalent O(1)Na5Sb octahedra. The corner-sharing octahedral tilt angles range from 8-13°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3SbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.416
_cell_length_b   5.754
_cell_length_c   6.546
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.462
_symmetry_Int_Tables_number   1
_cell_volume   192.338
_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  0.750  0.000  0.385  1.0
  Na  Na1  1  0.250  0.500  0.400  1.0
  Na  Na2  1  0.750  0.500  0.125  1.0
  Na  Na3  1  0.250  0.500  0.875  1.0
  Na  Na4  1  0.250  0.000  0.615  1.0
  Na  Na5  1  0.750  0.500  0.600  1.0
  Sb  Sb6  1  0.750  0.000  0.868  1.0
  Sb  Sb7  1  0.250  0.000  0.132  1.0
  O  O8  1  0.960  0.228  0.666  1.0
  O  O9  1  0.540  0.772  0.666  1.0
  O  O10  1  0.040  0.772  0.334  1.0
  O  O11  1  0.460  0.228  0.334  1.0
  O  O12  1  0.499  0.197  0.903  1.0
  O  O13  1  0.001  0.803  0.903  1.0
  O  O14  1  0.999  0.197  0.097  1.0
  O  O15  1  0.501  0.803  0.097  1.0
[/CIF]
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