The structure described by Ag3Ca5 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a distorted square co-planar geometry to two equivalent Ag(1) and four equivalent Ag(2) atoms. In the second Ca site, Ca(2) is bonded to two equivalent Ag(1) and three equivalent Ag(2) atoms to form a mixture of distorted corner, edge, and face-sharing CaAg5 trigonal bipyramids. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 10-coordinate geometry to two equivalent Ca(1) and eight equivalent Ca(2) atoms. In the second Ag site, Ag(2) is bonded in a 9-coordinate geometry to two equivalent Ca(1), six equivalent Ca(2), and one Ag(2) atom. is represented by the CIF file [CIF]
data_Ca5Ag3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.963
_cell_length_b   7.963
_cell_length_c   9.371
_cell_angle_alpha   115.144
_cell_angle_beta   115.144
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   475.001
_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  0.000  0.000  1.0
  Ca  Ca1  1  0.500  0.500  0.000  1.0
  Ca  Ca2  1  0.315  0.815  0.290  1.0
  Ca  Ca3  1  0.475  0.315  0.290  1.0
  Ca  Ca4  1  0.815  0.975  0.290  1.0
  Ca  Ca5  1  0.525  0.685  0.710  1.0
  Ca  Ca6  1  0.185  0.025  0.710  1.0
  Ca  Ca7  1  0.025  0.525  0.710  1.0
  Ca  Ca8  1  0.685  0.185  0.710  1.0
  Ca  Ca9  1  0.975  0.475  0.290  1.0
  Ag  Ag10  1  0.250  0.250  0.500  1.0
  Ag  Ag11  1  0.750  0.750  0.500  1.0
  Ag  Ag12  1  0.375  0.875  0.000  1.0
  Ag  Ag13  1  0.125  0.375  0.000  1.0
  Ag  Ag14  1  0.875  0.625  0.000  1.0
  Ag  Ag15  1  0.625  0.125  0.000  1.0
[/CIF]
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The structure described by Ag3Ca5 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a distorted square co-planar geometry to two equivalent Ag(1) and four equivalent Ag(2) atoms. In the second Ca site, Ca(2) is bonded to two equivalent Ag(1) and three equivalent Ag(2) atoms to form a mixture of distorted corner, edge, and face-sharing CaAg5 trigonal bipyramids. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 10-coordinate geometry to two equivalent Ca(1) and eight equivalent Ca(2) atoms. In the second Ag site, Ag(2) is bonded in a 9-coordinate geometry to two equivalent Ca(1), six equivalent Ca(2), and one Ag(2) atom. is represented by the CIF file [CIF]
data_Ca5Ag3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.963
_cell_length_b   7.963
_cell_length_c   9.371
_cell_angle_alpha   115.144
_cell_angle_beta   115.144
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   475.001
_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  0.000  0.000  1.0
  Ca  Ca1  1  0.500  0.500  0.000  1.0
  Ca  Ca2  1  0.315  0.815  0.290  1.0
  Ca  Ca3  1  0.475  0.315  0.290  1.0
  Ca  Ca4  1  0.815  0.975  0.290  1.0
  Ca  Ca5  1  0.525  0.685  0.710  1.0
  Ca  Ca6  1  0.185  0.025  0.710  1.0
  Ca  Ca7  1  0.025  0.525  0.710  1.0
  Ca  Ca8  1  0.685  0.185  0.710  1.0
  Ca  Ca9  1  0.975  0.475  0.290  1.0
  Ag  Ag10  1  0.250  0.250  0.500  1.0
  Ag  Ag11  1  0.750  0.750  0.500  1.0
  Ag  Ag12  1  0.375  0.875  0.000  1.0
  Ag  Ag13  1  0.125  0.375  0.000  1.0
  Ag  Ag14  1  0.875  0.625  0.000  1.0
  Ag  Ag15  1  0.625  0.125  0.000  1.0
[/CIF]
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