The crystal structure described by MgNbAgO3 crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to two equivalent Ag(1) and four equivalent O(1) atoms to form MgAg2O4 octahedra that share corners with six equivalent Mg(1)Ag2O4 octahedra and edges with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedra are not tilted. Nb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NbO6 octahedra that share corners with six equivalent Nb(1)O6 octahedra and edges with four equivalent Mg(1)Ag2O4 octahedra. The corner-sharing octahedra are not tilted. Ag(1) is bonded in a linear geometry to two equivalent Mg(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a square co-planar geometry to two equivalent Mg(1) and two equivalent Nb(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Nb(1) atoms. is represented by the CIF file [CIF]
data_MgNbAgO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.159
_cell_length_b   4.682
_cell_length_c   4.159
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   80.989
_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
  Mg  Mg0  1  0.500  0.000  0.500  1.0
  Nb  Nb1  1  0.000  0.000  0.000  1.0
  Ag  Ag2  1  0.500  0.500  0.500  1.0
  O  O3  1  0.500  0.000  0.000  1.0
  O  O4  1  0.000  0.500  0.000  1.0
  O  O5  1  0.000  0.000  0.500  1.0
[/CIF]
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The crystal structure described by MgNbAgO3 crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to two equivalent Ag(1) and four equivalent O(1) atoms to form MgAg2O4 octahedra that share corners with six equivalent Mg(1)Ag2O4 octahedra and edges with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedra are not tilted. Nb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NbO6 octahedra that share corners with six equivalent Nb(1)O6 octahedra and edges with four equivalent Mg(1)Ag2O4 octahedra. The corner-sharing octahedra are not tilted. Ag(1) is bonded in a linear geometry to two equivalent Mg(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a square co-planar geometry to two equivalent Mg(1) and two equivalent Nb(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Nb(1) atoms. is represented by the CIF file [CIF]
data_MgNbAgO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.159
_cell_length_b   4.682
_cell_length_c   4.159
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   80.989
_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
  Mg  Mg0  1  0.500  0.000  0.500  1.0
  Nb  Nb1  1  0.000  0.000  0.000  1.0
  Ag  Ag2  1  0.500  0.500  0.500  1.0
  O  O3  1  0.500  0.000  0.000  1.0
  O  O4  1  0.000  0.500  0.000  1.0
  O  O5  1  0.000  0.000  0.500  1.0
[/CIF]
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