The structure described by CaAgO2 crystallizes in the orthorhombic Cmme space group. Ca(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner and edge-sharing CaO6 octahedra. The corner-sharing octahedral tilt angles range from 0-24°. Ag(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent Ag(1) atoms. In the second O site, O(2) is bonded to four equivalent Ca(1) and two equivalent Ag(1) atoms to form a mixture of corner and edge-sharing OCa4Ag2 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaAgO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.415
_cell_length_b   5.703
_cell_length_c   5.703
_cell_angle_alpha   105.947
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   106.804
_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
  Ca  Ca0  1  0.000  0.500  0.500  1.0
  Ca  Ca1  1  0.000  0.000  0.000  1.0
  Ag  Ag2  1  0.500  0.000  0.500  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.141  0.250  0.750  1.0
  O  O5  1  0.500  0.250  0.250  1.0
  O  O6  1  0.500  0.750  0.750  1.0
  O  O7  1  0.859  0.750  0.250  1.0
[/CIF]
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The structure described by CaAgO2 crystallizes in the orthorhombic Cmme space group. Ca(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner and edge-sharing CaO6 octahedra. The corner-sharing octahedral tilt angles range from 0-24°. Ag(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent Ag(1) atoms. In the second O site, O(2) is bonded to four equivalent Ca(1) and two equivalent Ag(1) atoms to form a mixture of corner and edge-sharing OCa4Ag2 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaAgO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.415
_cell_length_b   5.703
_cell_length_c   5.703
_cell_angle_alpha   105.947
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   106.804
_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
  Ca  Ca0  1  0.000  0.500  0.500  1.0
  Ca  Ca1  1  0.000  0.000  0.000  1.0
  Ag  Ag2  1  0.500  0.000  0.500  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.141  0.250  0.750  1.0
  O  O5  1  0.500  0.250  0.250  1.0
  O  O6  1  0.500  0.750  0.750  1.0
  O  O7  1  0.859  0.750  0.250  1.0
[/CIF]
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