The structure described by MgAgBiO5 crystallizes in the monoclinic P2_1/c space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form distorted MgO6 octahedra that share corners with two equivalent Bi(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, and edges with three equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-26°. Ag(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), and two equivalent O(1) atoms. Bi(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form distorted BiO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra, and edges with three equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-26°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Ag(1), and one Bi(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Ag(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Ag(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a see-saw-like geometry to two equivalent Mg(1) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Ag(1), and one Bi(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAgBiO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.728
_cell_length_b   5.669
_cell_length_c   9.389
_cell_angle_alpha   58.006
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   484.305
_cell_formula_units_Z   4
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  0.061  0.591  0.826  1.0
  Mg  Mg1  1  0.939  0.409  0.174  1.0
  Mg  Mg2  1  0.561  0.409  0.674  1.0
  Mg  Mg3  1  0.439  0.591  0.326  1.0
  Ag  Ag4  1  0.377  0.186  0.032  1.0
  Ag  Ag5  1  0.623  0.814  0.968  1.0
  Ag  Ag6  1  0.877  0.814  0.468  1.0
  Ag  Ag7  1  0.123  0.186  0.532  1.0
  Bi  Bi8  1  0.899  0.085  0.839  1.0
  Bi  Bi9  1  0.101  0.915  0.161  1.0
  Bi  Bi10  1  0.601  0.085  0.339  1.0
  Bi  Bi11  1  0.399  0.915  0.661  1.0
  O  O12  1  0.960  0.971  0.668  1.0
  O  O13  1  0.972  0.488  0.667  1.0
  O  O14  1  0.794  0.169  0.293  1.0
  O  O15  1  0.455  0.769  0.494  1.0
  O  O16  1  0.695  0.709  0.531  1.0
  O  O17  1  0.805  0.709  0.031  1.0
  O  O18  1  0.528  0.488  0.167  1.0
  O  O19  1  0.472  0.512  0.833  1.0
  O  O20  1  0.545  0.231  0.506  1.0
  O  O21  1  0.460  0.029  0.832  1.0
  O  O22  1  0.305  0.291  0.469  1.0
  O  O23  1  0.040  0.029  0.332  1.0
  O  O24  1  0.540  0.971  0.168  1.0
  O  O25  1  0.195  0.291  0.969  1.0
  O  O26  1  0.955  0.231  0.006  1.0
  O  O27  1  0.045  0.769  0.994  1.0
  O  O28  1  0.206  0.831  0.707  1.0
  O  O29  1  0.028  0.512  0.333  1.0
  O  O30  1  0.294  0.831  0.207  1.0
  O  O31  1  0.706  0.169  0.793  1.0
[/CIF]
.
The structure described by MgAgBiO5 crystallizes in the monoclinic P2_1/c space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form distorted MgO6 octahedra that share corners with two equivalent Bi(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra, and edges with three equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-26°. Ag(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), and two equivalent O(1) atoms. Bi(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form distorted BiO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra, and edges with three equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-26°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Ag(1), and one Bi(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Ag(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Ag(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a see-saw-like geometry to two equivalent Mg(1) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Ag(1), and one Bi(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAgBiO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.728
_cell_length_b   5.669
_cell_length_c   9.389
_cell_angle_alpha   58.006
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   484.305
_cell_formula_units_Z   4
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  0.061  0.591  0.826  1.0
  Mg  Mg1  1  0.939  0.409  0.174  1.0
  Mg  Mg2  1  0.561  0.409  0.674  1.0
  Mg  Mg3  1  0.439  0.591  0.326  1.0
  Ag  Ag4  1  0.377  0.186  0.032  1.0
  Ag  Ag5  1  0.623  0.814  0.968  1.0
  Ag  Ag6  1  0.877  0.814  0.468  1.0
  Ag  Ag7  1  0.123  0.186  0.532  1.0
  Bi  Bi8  1  0.899  0.085  0.839  1.0
  Bi  Bi9  1  0.101  0.915  0.161  1.0
  Bi  Bi10  1  0.601  0.085  0.339  1.0
  Bi  Bi11  1  0.399  0.915  0.661  1.0
  O  O12  1  0.960  0.971  0.668  1.0
  O  O13  1  0.972  0.488  0.667  1.0
  O  O14  1  0.794  0.169  0.293  1.0
  O  O15  1  0.455  0.769  0.494  1.0
  O  O16  1  0.695  0.709  0.531  1.0
  O  O17  1  0.805  0.709  0.031  1.0
  O  O18  1  0.528  0.488  0.167  1.0
  O  O19  1  0.472  0.512  0.833  1.0
  O  O20  1  0.545  0.231  0.506  1.0
  O  O21  1  0.460  0.029  0.832  1.0
  O  O22  1  0.305  0.291  0.469  1.0
  O  O23  1  0.040  0.029  0.332  1.0
  O  O24  1  0.540  0.971  0.168  1.0
  O  O25  1  0.195  0.291  0.969  1.0
  O  O26  1  0.955  0.231  0.006  1.0
  O  O27  1  0.045  0.769  0.994  1.0
  O  O28  1  0.206  0.831  0.707  1.0
  O  O29  1  0.028  0.512  0.333  1.0
  O  O30  1  0.294  0.831  0.207  1.0
  O  O31  1  0.706  0.169  0.793  1.0
[/CIF]
.