The material structure described by Ca(AgO2)2 is Spinel-like structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(13), one O(3), and two equivalent O(1) atoms to form CaO4 tetrahedra that share  a cornercorner with one Ca(6)O6 octahedra, corners with two equivalent Ca(3)O6 octahedra, corners with two equivalent Ag(6)O6 octahedra, corners with three equivalent Ag(3)O6 octahedra, and corners with four equivalent Ag(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-63°. In the second Ca site, Ca(2) is bonded to one O(5), one O(9), two equivalent O(4), and two equivalent O(7) atoms to form CaO6 octahedra that share corners with three equivalent Ag(2)O4 tetrahedra, corners with three equivalent Ag(7)O4 tetrahedra,  an edgeedge with one Ca(3)O6 octahedra,  an edgeedge with one Ca(5)O6 octahedra, edges with two equivalent Ag(1)O6 octahedra, and edges with two equivalent Ag(4)O6 octahedra. In the third Ca site, Ca(3) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(7) atoms to form CaO6 octahedra that share  a cornercorner with one Ag(2)O4 tetrahedra,  a cornercorner with one Ag(9)O4 tetrahedra, corners with two equivalent Ca(1)O4 tetrahedra, corners with two equivalent Ag(7)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, and edges with four equivalent Ag(1)O6 octahedra. In the fourth Ca site, Ca(4) is bonded to one O(11), one O(15), two equivalent O(10), and two equivalent O(12) atoms to form CaO6 octahedra that share corners with three equivalent Ag(5)O4 tetrahedra, corners with three equivalent Ag(8)O4 tetrahedra,  an edgeedge with one Ca(5)O6 octahedra,  an edgeedge with one Ca(6)O6 octahedra, edges with two equivalent Ag(4)O6 octahedra, and edges with two equivalent Ag(6)O6 octahedra. In the fifth Ca site, Ca(5) is bonded to one O(14), one O(6), two equivalent O(12), and two equivalent O(4) atoms to form CaO6 octahedra that share  a cornercorner with one Ag(5)O4 tetrahedra,  a cornercorner with one Ag(7)O4 tetrahedra, corners with two equivalent Ag(2)O4 tetrahedra, corners with two equivalent Ag(8)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ca(4)O6 octahedra, and edges with four equivalent Ag(4)O6 octahedra. In the sixth Ca site, Ca(6) is bonded to one O(13), one O(18), two equivalent O(10), and two equivalent O(17) atoms to form CaO6 octahedra that share  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Ag(8)O4 tetrahedra, corners with two equivalent Ag(5)O4 tetrahedra, corners with two equivalent Ag(9)O4 tetrahedra,  an edgeedge with one Ca(4)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, and edges with four equivalent Ag(6)O6 octahedra. There are nine inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form AgO6 octahedra that share  a cornercorner with one Ag(2)O4 tetrahedra,  a cornercorner with one Ag(9)O4 tetrahedra, corners with two equivalent Ca(1)O4 tetrahedra, corners with two equivalent Ag(7)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, edges with two equivalent Ca(3)O6 octahedra, and edges with two equivalent Ag(1)O6 octahedra. In the second Ag site, Ag(2) is bonded to one O(2), one O(9), and two equivalent O(4) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(3)O6 octahedra, corners with two equivalent Ca(5)O6 octahedra, corners with two equivalent Ag(1)O6 octahedra, corners with three equivalent Ca(2)O6 octahedra, and corners with four equivalent Ag(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. In the third Ag site, Ag(3) is bonded to one O(16), one O(3), two equivalent O(1), and two equivalent O(17) atoms to form AgO6 octahedra that share corners with three equivalent Ca(1)O4 tetrahedra, corners with three equivalent Ag(9)O4 tetrahedra,  an edgeedge with one Ca(3)O6 octahedra,  an edgeedge with one Ca(6)O6 octahedra, edges with two equivalent Ag(1)O6 octahedra, and edges with two equivalent Ag(6)O6 octahedra. In the fourth Ag site, Ag(4) is bonded to one O(11), one O(12), one O(14), one O(4), one O(6), and one O(9) atom to form AgO6 octahedra that share  a cornercorner with one Ag(5)O4 tetrahedra,  a cornercorner with one Ag(7)O4 tetrahedra, corners with two equivalent Ag(2)O4 tetrahedra, corners with two equivalent Ag(8)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ca(4)O6 octahedra, edges with two equivalent Ca(5)O6 octahedra, and edges with two equivalent Ag(4)O6 octahedra. In the fifth Ag site, Ag(5) is bonded to one O(15), one O(6), and two equivalent O(10) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(5)O6 octahedra, corners with two equivalent Ca(6)O6 octahedra, corners with two equivalent Ag(4)O6 octahedra, corners with three equivalent Ca(4)O6 octahedra, and corners with four equivalent Ag(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-64°. In the sixth Ag site, Ag(6) is bonded to one O(10), one O(13), one O(15), one O(16), one O(17), and one O(18) atom to form AgO6 octahedra that share  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Ag(8)O4 tetrahedra, corners with two equivalent Ag(5)O4 tetrahedra, corners with two equivalent Ag(9)O4 tetrahedra,  an edgeedge with one Ca(4)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, edges with two equivalent Ca(6)O6 octahedra, and edges with two equivalent Ag(6)O6 octahedra. In the seventh Ag site, Ag(7) is bonded to one O(14), one O(5), and two equivalent O(7) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(5)O6 octahedra, corners with two equivalent Ca(3)O6 octahedra, corners with two equivalent Ag(4)O6 octahedra, corners with three equivalent Ca(2)O6 octahedra, and corners with four equivalent Ag(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-65°. In the eighth Ag site, Ag(8) is bonded to one O(11), one O(18), and two equivalent O(12) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(6)O6 octahedra, corners with two equivalent Ca(5)O6 octahedra, corners with two equivalent Ag(6)O6 octahedra, corners with three equivalent Ca(4)O6 octahedra, and corners with four equivalent Ag(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. In the ninth Ag site, Ag(9) is bonded to one O(16), one O(8), and two equivalent O(17) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(3)O6 octahedra, corners with two equivalent Ca(6)O6 octahedra, corners with two equivalent Ag(1)O6 octahedra, corners with three equivalent Ag(3)O6 octahedra, and corners with four equivalent Ag(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-68°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded to one Ca(1), one Ca(3), one Ag(1), and one Ag(3) atom to form distorted OCa2Ag2 tetrahedra that share  a cornercorner with one O(1)Ca2Ag2 tetrahedra,  a cornercorner with one O(13)Ca2Ag2 tetrahedra,  a cornercorner with one O(3)CaAg3 trigonal pyramid, corners with two equivalent O(17)CaAg3 trigonal pyramids, corners with two equivalent O(8)CaAg3 trigonal pyramids,  an edgeedge with one O(1)Ca2Ag2 tetrahedra, and  an edgeedge with one O(3)CaAg3 trigonal pyramid. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Ca(3), one Ag(2), and two equivalent Ag(1) atoms. In the third O site, O(3) is bonded to one Ca(1), one Ag(3), and two equivalent Ag(1) atoms to form distorted OCaAg3 trigonal pyramids that share  a cornercorner with one O(13)Ca2Ag2 tetrahedra, corners with two equivalent O(1)Ca2Ag2 tetrahedra, corners with two equivalent O(17)CaAg3 trigonal pyramids, corners with two equivalent O(8)CaAg3 trigonal pyramids, and edges with two equivalent O(1)Ca2Ag2 tetrahedra. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ca(5), one Ag(2), and one Ag(4) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ag(7), and two equivalent Ag(1) atoms. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Ca(5), one Ag(5), and two equivalent Ag(4) atoms. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ca(3), one Ag(1), and one Ag(7) atom. In the eighth O site, O(8) is bonded to one Ca(3), one Ag(9), and two equivalent Ag(1) atoms to form OCaAg3 trigonal pyramids that share corners with four equivalent O(1)Ca2Ag2 tetrahedra, corners with two equivalent O(17)CaAg3 trigonal pyramids, and corners with two equivalent O(3)CaAg3 trigonal pyramids. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ag(2), and two equivalent Ag(4) atoms. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ca(6), one Ag(5), and one Ag(6) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ag(8), and two equivalent Ag(4) atoms. In the twelfth O site, O(12) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ca(5), one Ag(4), and one Ag(8) atom. In the thirteenth O site, O(13) is bonded to one Ca(1), one Ca(6), and two equivalent Ag(6) atoms to form distorted OCa2Ag2 tetrahedra that share corners with two equivalent O(1)Ca2Ag2 tetrahedra,  a cornercorner with one O(3)CaAg3 trigonal pyramid, corners with three equivalent O(18)CaAg3 trigonal pyramids, and corners with four equivalent O(17)CaAg3 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Ca(5), one Ag(7), and two equivalent Ag(4) atoms. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ag(5), and two equivalent Ag(6) atoms. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Ag(3), one Ag(9), and two equivalent Ag(6) atoms. In the seventeenth O site, O(17) is bonded to one Ca(6), one Ag(3), one Ag(6), and one Ag(9) atom to form OCaAg3 trigonal pyramids that share corners with two equivalent O(1)Ca2Ag2 tetrahedra, corners with two equivalent O(13)Ca2Ag2 tetrahedra,  a cornercorner with one O(17)CaAg3 trigonal pyramid,  a cornercorner with one O(3)CaAg3 trigonal pyramid,  a cornercorner with one O(8)CaAg3 trigonal pyramid,  an edgeedge with one O(17)CaAg3 trigonal pyramid, and  an edgeedge with one O(18)CaAg3 trigonal pyramid. In the eighteenth O site, O(18) is bonded to one Ca(6), one Ag(8), and two equivalent Ag(6) atoms to form distorted OCaAg3 trigonal pyramids that share corners with three equivalent O(13)Ca2Ag2 tetrahedra and edges with two equivalent O(17)CaAg3 trigonal pyramids. is represented by the CIF file [CIF]
data_Ca(AgO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.595
_cell_length_b   6.595
_cell_length_c   16.231
_cell_angle_alpha   89.580
_cell_angle_beta   89.580
_cell_angle_gamma   59.823
_symmetry_Int_Tables_number   1
_cell_volume   610.182
_cell_formula_units_Z   6
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  0.848  0.848  0.960  1.0
  Ca  Ca1  1  0.166  0.166  0.668  1.0
  Ca  Ca2  1  0.335  0.335  0.834  1.0
  Ca  Ca3  1  0.834  0.834  0.332  1.0
  Ca  Ca4  1  0.000  0.000  0.500  1.0
  Ca  Ca5  1  0.664  0.664  0.166  1.0
  Ag  Ag6  1  0.832  0.338  0.834  1.0
  Ag  Ag7  1  0.506  0.506  0.620  1.0
  Ag  Ag8  1  0.500  0.500  1.000  1.0
  Ag  Ag9  1  0.338  0.832  0.834  1.0
  Ag  Ag10  1  0.500  1.000  0.500  1.0
  Ag  Ag11  1  0.173  0.173  0.293  1.0
  Ag  Ag12  1  1.000  0.500  0.500  1.0
  Ag  Ag13  1  0.166  0.664  0.166  1.0
  Ag  Ag14  1  0.830  0.830  0.707  1.0
  Ag  Ag15  1  0.664  0.166  0.166  1.0
  Ag  Ag16  1  0.493  0.493  0.379  1.0
  Ag  Ag17  1  0.165  0.165  0.043  1.0
  O  O18  1  0.662  0.221  0.915  1.0
  O  O19  1  0.514  0.514  0.760  1.0
  O  O20  1  0.221  0.662  0.915  1.0
  O  O21  1  0.656  0.656  0.912  1.0
  O  O22  1  0.340  0.867  0.574  1.0
  O  O23  1  0.003  0.003  0.764  1.0
  O  O24  1  0.180  0.180  0.428  1.0
  O  O25  1  0.475  0.990  0.762  1.0
  O  O26  1  0.867  0.340  0.574  1.0
  O  O27  1  0.151  0.151  0.904  1.0
  O  O28  1  0.323  0.323  0.572  1.0
  O  O29  1  0.990  0.475  0.762  1.0
  O  O30  1  0.007  0.527  0.239  1.0
  O  O31  1  0.677  0.677  0.428  1.0
  O  O32  1  0.134  0.660  0.426  1.0
  O  O33  1  0.527  0.007  0.239  1.0
  O  O34  1  0.846  0.846  0.100  1.0
  O  O35  1  0.820  0.820  0.572  1.0
  O  O36  1  0.998  0.998  0.241  1.0
  O  O37  1  0.660  0.134  0.426  1.0
  O  O38  1  0.343  0.343  0.083  1.0
  O  O39  1  0.782  0.331  0.082  1.0
  O  O40  1  0.483  0.483  0.236  1.0
  O  O41  1  0.331  0.782  0.082  1.0
[/CIF]
.
The material structure described by Ca(AgO2)2 is Spinel-like structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(13), one O(3), and two equivalent O(1) atoms to form CaO4 tetrahedra that share  a cornercorner with one Ca(6)O6 octahedra, corners with two equivalent Ca(3)O6 octahedra, corners with two equivalent Ag(6)O6 octahedra, corners with three equivalent Ag(3)O6 octahedra, and corners with four equivalent Ag(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-63°. In the second Ca site, Ca(2) is bonded to one O(5), one O(9), two equivalent O(4), and two equivalent O(7) atoms to form CaO6 octahedra that share corners with three equivalent Ag(2)O4 tetrahedra, corners with three equivalent Ag(7)O4 tetrahedra,  an edgeedge with one Ca(3)O6 octahedra,  an edgeedge with one Ca(5)O6 octahedra, edges with two equivalent Ag(1)O6 octahedra, and edges with two equivalent Ag(4)O6 octahedra. In the third Ca site, Ca(3) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(7) atoms to form CaO6 octahedra that share  a cornercorner with one Ag(2)O4 tetrahedra,  a cornercorner with one Ag(9)O4 tetrahedra, corners with two equivalent Ca(1)O4 tetrahedra, corners with two equivalent Ag(7)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, and edges with four equivalent Ag(1)O6 octahedra. In the fourth Ca site, Ca(4) is bonded to one O(11), one O(15), two equivalent O(10), and two equivalent O(12) atoms to form CaO6 octahedra that share corners with three equivalent Ag(5)O4 tetrahedra, corners with three equivalent Ag(8)O4 tetrahedra,  an edgeedge with one Ca(5)O6 octahedra,  an edgeedge with one Ca(6)O6 octahedra, edges with two equivalent Ag(4)O6 octahedra, and edges with two equivalent Ag(6)O6 octahedra. In the fifth Ca site, Ca(5) is bonded to one O(14), one O(6), two equivalent O(12), and two equivalent O(4) atoms to form CaO6 octahedra that share  a cornercorner with one Ag(5)O4 tetrahedra,  a cornercorner with one Ag(7)O4 tetrahedra, corners with two equivalent Ag(2)O4 tetrahedra, corners with two equivalent Ag(8)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ca(4)O6 octahedra, and edges with four equivalent Ag(4)O6 octahedra. In the sixth Ca site, Ca(6) is bonded to one O(13), one O(18), two equivalent O(10), and two equivalent O(17) atoms to form CaO6 octahedra that share  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Ag(8)O4 tetrahedra, corners with two equivalent Ag(5)O4 tetrahedra, corners with two equivalent Ag(9)O4 tetrahedra,  an edgeedge with one Ca(4)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, and edges with four equivalent Ag(6)O6 octahedra. There are nine inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form AgO6 octahedra that share  a cornercorner with one Ag(2)O4 tetrahedra,  a cornercorner with one Ag(9)O4 tetrahedra, corners with two equivalent Ca(1)O4 tetrahedra, corners with two equivalent Ag(7)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, edges with two equivalent Ca(3)O6 octahedra, and edges with two equivalent Ag(1)O6 octahedra. In the second Ag site, Ag(2) is bonded to one O(2), one O(9), and two equivalent O(4) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(3)O6 octahedra, corners with two equivalent Ca(5)O6 octahedra, corners with two equivalent Ag(1)O6 octahedra, corners with three equivalent Ca(2)O6 octahedra, and corners with four equivalent Ag(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. In the third Ag site, Ag(3) is bonded to one O(16), one O(3), two equivalent O(1), and two equivalent O(17) atoms to form AgO6 octahedra that share corners with three equivalent Ca(1)O4 tetrahedra, corners with three equivalent Ag(9)O4 tetrahedra,  an edgeedge with one Ca(3)O6 octahedra,  an edgeedge with one Ca(6)O6 octahedra, edges with two equivalent Ag(1)O6 octahedra, and edges with two equivalent Ag(6)O6 octahedra. In the fourth Ag site, Ag(4) is bonded to one O(11), one O(12), one O(14), one O(4), one O(6), and one O(9) atom to form AgO6 octahedra that share  a cornercorner with one Ag(5)O4 tetrahedra,  a cornercorner with one Ag(7)O4 tetrahedra, corners with two equivalent Ag(2)O4 tetrahedra, corners with two equivalent Ag(8)O4 tetrahedra,  an edgeedge with one Ca(2)O6 octahedra,  an edgeedge with one Ca(4)O6 octahedra, edges with two equivalent Ca(5)O6 octahedra, and edges with two equivalent Ag(4)O6 octahedra. In the fifth Ag site, Ag(5) is bonded to one O(15), one O(6), and two equivalent O(10) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(5)O6 octahedra, corners with two equivalent Ca(6)O6 octahedra, corners with two equivalent Ag(4)O6 octahedra, corners with three equivalent Ca(4)O6 octahedra, and corners with four equivalent Ag(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-64°. In the sixth Ag site, Ag(6) is bonded to one O(10), one O(13), one O(15), one O(16), one O(17), and one O(18) atom to form AgO6 octahedra that share  a cornercorner with one Ca(1)O4 tetrahedra,  a cornercorner with one Ag(8)O4 tetrahedra, corners with two equivalent Ag(5)O4 tetrahedra, corners with two equivalent Ag(9)O4 tetrahedra,  an edgeedge with one Ca(4)O6 octahedra,  an edgeedge with one Ag(3)O6 octahedra, edges with two equivalent Ca(6)O6 octahedra, and edges with two equivalent Ag(6)O6 octahedra. In the seventh Ag site, Ag(7) is bonded to one O(14), one O(5), and two equivalent O(7) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(5)O6 octahedra, corners with two equivalent Ca(3)O6 octahedra, corners with two equivalent Ag(4)O6 octahedra, corners with three equivalent Ca(2)O6 octahedra, and corners with four equivalent Ag(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-65°. In the eighth Ag site, Ag(8) is bonded to one O(11), one O(18), and two equivalent O(12) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(6)O6 octahedra, corners with two equivalent Ca(5)O6 octahedra, corners with two equivalent Ag(6)O6 octahedra, corners with three equivalent Ca(4)O6 octahedra, and corners with four equivalent Ag(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-64°. In the ninth Ag site, Ag(9) is bonded to one O(16), one O(8), and two equivalent O(17) atoms to form AgO4 tetrahedra that share  a cornercorner with one Ca(3)O6 octahedra, corners with two equivalent Ca(6)O6 octahedra, corners with two equivalent Ag(1)O6 octahedra, corners with three equivalent Ag(3)O6 octahedra, and corners with four equivalent Ag(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-68°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded to one Ca(1), one Ca(3), one Ag(1), and one Ag(3) atom to form distorted OCa2Ag2 tetrahedra that share  a cornercorner with one O(1)Ca2Ag2 tetrahedra,  a cornercorner with one O(13)Ca2Ag2 tetrahedra,  a cornercorner with one O(3)CaAg3 trigonal pyramid, corners with two equivalent O(17)CaAg3 trigonal pyramids, corners with two equivalent O(8)CaAg3 trigonal pyramids,  an edgeedge with one O(1)Ca2Ag2 tetrahedra, and  an edgeedge with one O(3)CaAg3 trigonal pyramid. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Ca(3), one Ag(2), and two equivalent Ag(1) atoms. In the third O site, O(3) is bonded to one Ca(1), one Ag(3), and two equivalent Ag(1) atoms to form distorted OCaAg3 trigonal pyramids that share  a cornercorner with one O(13)Ca2Ag2 tetrahedra, corners with two equivalent O(1)Ca2Ag2 tetrahedra, corners with two equivalent O(17)CaAg3 trigonal pyramids, corners with two equivalent O(8)CaAg3 trigonal pyramids, and edges with two equivalent O(1)Ca2Ag2 tetrahedra. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ca(5), one Ag(2), and one Ag(4) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ag(7), and two equivalent Ag(1) atoms. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Ca(5), one Ag(5), and two equivalent Ag(4) atoms. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ca(3), one Ag(1), and one Ag(7) atom. In the eighth O site, O(8) is bonded to one Ca(3), one Ag(9), and two equivalent Ag(1) atoms to form OCaAg3 trigonal pyramids that share corners with four equivalent O(1)Ca2Ag2 tetrahedra, corners with two equivalent O(17)CaAg3 trigonal pyramids, and corners with two equivalent O(3)CaAg3 trigonal pyramids. In the ninth O site, O(9) is bonded in a rectangular see-saw-like geometry to one Ca(2), one Ag(2), and two equivalent Ag(4) atoms. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ca(6), one Ag(5), and one Ag(6) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ag(8), and two equivalent Ag(4) atoms. In the twelfth O site, O(12) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ca(5), one Ag(4), and one Ag(8) atom. In the thirteenth O site, O(13) is bonded to one Ca(1), one Ca(6), and two equivalent Ag(6) atoms to form distorted OCa2Ag2 tetrahedra that share corners with two equivalent O(1)Ca2Ag2 tetrahedra,  a cornercorner with one O(3)CaAg3 trigonal pyramid, corners with three equivalent O(18)CaAg3 trigonal pyramids, and corners with four equivalent O(17)CaAg3 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Ca(5), one Ag(7), and two equivalent Ag(4) atoms. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one Ca(4), one Ag(5), and two equivalent Ag(6) atoms. In the sixteenth O site, O(16) is bonded in a rectangular see-saw-like geometry to one Ag(3), one Ag(9), and two equivalent Ag(6) atoms. In the seventeenth O site, O(17) is bonded to one Ca(6), one Ag(3), one Ag(6), and one Ag(9) atom to form OCaAg3 trigonal pyramids that share corners with two equivalent O(1)Ca2Ag2 tetrahedra, corners with two equivalent O(13)Ca2Ag2 tetrahedra,  a cornercorner with one O(17)CaAg3 trigonal pyramid,  a cornercorner with one O(3)CaAg3 trigonal pyramid,  a cornercorner with one O(8)CaAg3 trigonal pyramid,  an edgeedge with one O(17)CaAg3 trigonal pyramid, and  an edgeedge with one O(18)CaAg3 trigonal pyramid. In the eighteenth O site, O(18) is bonded to one Ca(6), one Ag(8), and two equivalent Ag(6) atoms to form distorted OCaAg3 trigonal pyramids that share corners with three equivalent O(13)Ca2Ag2 tetrahedra and edges with two equivalent O(17)CaAg3 trigonal pyramids. is represented by the CIF file [CIF]
data_Ca(AgO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.595
_cell_length_b   6.595
_cell_length_c   16.231
_cell_angle_alpha   89.580
_cell_angle_beta   89.580
_cell_angle_gamma   59.823
_symmetry_Int_Tables_number   1
_cell_volume   610.182
_cell_formula_units_Z   6
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  0.848  0.848  0.960  1.0
  Ca  Ca1  1  0.166  0.166  0.668  1.0
  Ca  Ca2  1  0.335  0.335  0.834  1.0
  Ca  Ca3  1  0.834  0.834  0.332  1.0
  Ca  Ca4  1  0.000  0.000  0.500  1.0
  Ca  Ca5  1  0.664  0.664  0.166  1.0
  Ag  Ag6  1  0.832  0.338  0.834  1.0
  Ag  Ag7  1  0.506  0.506  0.620  1.0
  Ag  Ag8  1  0.500  0.500  1.000  1.0
  Ag  Ag9  1  0.338  0.832  0.834  1.0
  Ag  Ag10  1  0.500  1.000  0.500  1.0
  Ag  Ag11  1  0.173  0.173  0.293  1.0
  Ag  Ag12  1  1.000  0.500  0.500  1.0
  Ag  Ag13  1  0.166  0.664  0.166  1.0
  Ag  Ag14  1  0.830  0.830  0.707  1.0
  Ag  Ag15  1  0.664  0.166  0.166  1.0
  Ag  Ag16  1  0.493  0.493  0.379  1.0
  Ag  Ag17  1  0.165  0.165  0.043  1.0
  O  O18  1  0.662  0.221  0.915  1.0
  O  O19  1  0.514  0.514  0.760  1.0
  O  O20  1  0.221  0.662  0.915  1.0
  O  O21  1  0.656  0.656  0.912  1.0
  O  O22  1  0.340  0.867  0.574  1.0
  O  O23  1  0.003  0.003  0.764  1.0
  O  O24  1  0.180  0.180  0.428  1.0
  O  O25  1  0.475  0.990  0.762  1.0
  O  O26  1  0.867  0.340  0.574  1.0
  O  O27  1  0.151  0.151  0.904  1.0
  O  O28  1  0.323  0.323  0.572  1.0
  O  O29  1  0.990  0.475  0.762  1.0
  O  O30  1  0.007  0.527  0.239  1.0
  O  O31  1  0.677  0.677  0.428  1.0
  O  O32  1  0.134  0.660  0.426  1.0
  O  O33  1  0.527  0.007  0.239  1.0
  O  O34  1  0.846  0.846  0.100  1.0
  O  O35  1  0.820  0.820  0.572  1.0
  O  O36  1  0.998  0.998  0.241  1.0
  O  O37  1  0.660  0.134  0.426  1.0
  O  O38  1  0.343  0.343  0.083  1.0
  O  O39  1  0.782  0.331  0.082  1.0
  O  O40  1  0.483  0.483  0.236  1.0
  O  O41  1  0.331  0.782  0.082  1.0
[/CIF]
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