The crystal structure described by Ca2Ag2O5 crystallizes in the orthorhombic Pbam space group. Ca(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(2), and three equivalent O(3) atoms. Ag(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Ca(1) and two equivalent Ag(1) atoms to form OCa4Ag2 octahedra that share corners with four equivalent O(3)Ca3Ag2 trigonal bipyramids, edges with two equivalent O(1)Ca4Ag2 octahedra, and faces with four equivalent O(3)Ca3Ag2 trigonal bipyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent Ag(1) atoms. In the third O site, O(3) is bonded to three equivalent Ca(1) and two equivalent Ag(1) atoms to form OCa3Ag2 trigonal bipyramids that share corners with two equivalent O(1)Ca4Ag2 octahedra, corners with six equivalent O(3)Ca3Ag2 trigonal bipyramids,  an edgeedge with one O(3)Ca3Ag2 trigonal bipyramid, and faces with two equivalent O(1)Ca4Ag2 octahedra. The corner-sharing octahedral tilt angles are 54°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca2Ag2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.092
_cell_length_b   5.963
_cell_length_c   9.845
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   240.241
_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  0.500  0.656  0.861  1.0
  Ca  Ca1  1  0.500  0.344  0.139  1.0
  Ca  Ca2  1  0.500  0.156  0.639  1.0
  Ca  Ca3  1  0.500  0.844  0.361  1.0
  Ag  Ag4  1  0.000  0.691  0.600  1.0
  Ag  Ag5  1  0.000  0.309  0.400  1.0
  Ag  Ag6  1  0.000  0.809  0.100  1.0
  Ag  Ag7  1  0.000  0.191  0.900  1.0
  O  O8  1  0.000  0.000  0.500  1.0
  O  O9  1  0.000  0.628  0.320  1.0
  O  O10  1  0.000  0.128  0.180  1.0
  O  O11  1  0.000  0.872  0.820  1.0
  O  O12  1  0.500  0.759  0.114  1.0
  O  O13  1  0.500  0.241  0.886  1.0
  O  O14  1  0.000  0.372  0.680  1.0
  O  O15  1  0.500  0.741  0.614  1.0
  O  O16  1  0.000  0.500  0.000  1.0
  O  O17  1  0.500  0.259  0.386  1.0
[/CIF]
.
The crystal structure described by Ca2Ag2O5 crystallizes in the orthorhombic Pbam space group. Ca(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(2), and three equivalent O(3) atoms. Ag(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Ca(1) and two equivalent Ag(1) atoms to form OCa4Ag2 octahedra that share corners with four equivalent O(3)Ca3Ag2 trigonal bipyramids, edges with two equivalent O(1)Ca4Ag2 octahedra, and faces with four equivalent O(3)Ca3Ag2 trigonal bipyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent Ag(1) atoms. In the third O site, O(3) is bonded to three equivalent Ca(1) and two equivalent Ag(1) atoms to form OCa3Ag2 trigonal bipyramids that share corners with two equivalent O(1)Ca4Ag2 octahedra, corners with six equivalent O(3)Ca3Ag2 trigonal bipyramids,  an edgeedge with one O(3)Ca3Ag2 trigonal bipyramid, and faces with two equivalent O(1)Ca4Ag2 octahedra. The corner-sharing octahedral tilt angles are 54°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca2Ag2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.092
_cell_length_b   5.963
_cell_length_c   9.845
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   240.241
_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  0.500  0.656  0.861  1.0
  Ca  Ca1  1  0.500  0.344  0.139  1.0
  Ca  Ca2  1  0.500  0.156  0.639  1.0
  Ca  Ca3  1  0.500  0.844  0.361  1.0
  Ag  Ag4  1  0.000  0.691  0.600  1.0
  Ag  Ag5  1  0.000  0.309  0.400  1.0
  Ag  Ag6  1  0.000  0.809  0.100  1.0
  Ag  Ag7  1  0.000  0.191  0.900  1.0
  O  O8  1  0.000  0.000  0.500  1.0
  O  O9  1  0.000  0.628  0.320  1.0
  O  O10  1  0.000  0.128  0.180  1.0
  O  O11  1  0.000  0.872  0.820  1.0
  O  O12  1  0.500  0.759  0.114  1.0
  O  O13  1  0.500  0.241  0.886  1.0
  O  O14  1  0.000  0.372  0.680  1.0
  O  O15  1  0.500  0.741  0.614  1.0
  O  O16  1  0.000  0.500  0.000  1.0
  O  O17  1  0.500  0.259  0.386  1.0
[/CIF]
.