The structure described by Sr5Cd3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a square co-planar geometry to four equivalent Cd(2) atoms. In the second Sr site, Sr(2) is bonded to two equivalent Cd(1) and three equivalent Cd(2) atoms to form a mixture of distorted edge, corner, and face-sharing SrCd5 trigonal bipyramids. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 8-coordinate geometry to eight equivalent Sr(2) atoms. In the second Cd site, Cd(2) is bonded in a 9-coordinate geometry to two equivalent Sr(1), six equivalent Sr(2), and one Cd(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr5Cd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.772
_cell_length_b   8.772
_cell_length_c   10.287
_cell_angle_alpha   115.236
_cell_angle_beta   115.236
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   631.440
_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
  Sr  Sr0  1  0.000  0.000  0.000  1.0
  Sr  Sr1  1  0.500  0.500  0.000  1.0
  Sr  Sr2  1  0.316  0.816  0.294  1.0
  Sr  Sr3  1  0.478  0.316  0.294  1.0
  Sr  Sr4  1  0.816  0.978  0.294  1.0
  Sr  Sr5  1  0.522  0.684  0.706  1.0
  Sr  Sr6  1  0.184  0.022  0.706  1.0
  Sr  Sr7  1  0.022  0.522  0.706  1.0
  Sr  Sr8  1  0.684  0.184  0.706  1.0
  Sr  Sr9  1  0.978  0.478  0.294  1.0
  Cd  Cd10  1  0.250  0.250  0.500  1.0
  Cd  Cd11  1  0.750  0.750  0.500  1.0
  Cd  Cd12  1  0.379  0.879  0.000  1.0
  Cd  Cd13  1  0.121  0.379  0.000  1.0
  Cd  Cd14  1  0.879  0.621  0.000  1.0
  Cd  Cd15  1  0.621  0.121  0.000  1.0
[/CIF]
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The structure described by Sr5Cd3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a square co-planar geometry to four equivalent Cd(2) atoms. In the second Sr site, Sr(2) is bonded to two equivalent Cd(1) and three equivalent Cd(2) atoms to form a mixture of distorted edge, corner, and face-sharing SrCd5 trigonal bipyramids. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 8-coordinate geometry to eight equivalent Sr(2) atoms. In the second Cd site, Cd(2) is bonded in a 9-coordinate geometry to two equivalent Sr(1), six equivalent Sr(2), and one Cd(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr5Cd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.772
_cell_length_b   8.772
_cell_length_c   10.287
_cell_angle_alpha   115.236
_cell_angle_beta   115.236
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   631.440
_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
  Sr  Sr0  1  0.000  0.000  0.000  1.0
  Sr  Sr1  1  0.500  0.500  0.000  1.0
  Sr  Sr2  1  0.316  0.816  0.294  1.0
  Sr  Sr3  1  0.478  0.316  0.294  1.0
  Sr  Sr4  1  0.816  0.978  0.294  1.0
  Sr  Sr5  1  0.522  0.684  0.706  1.0
  Sr  Sr6  1  0.184  0.022  0.706  1.0
  Sr  Sr7  1  0.022  0.522  0.706  1.0
  Sr  Sr8  1  0.684  0.184  0.706  1.0
  Sr  Sr9  1  0.978  0.478  0.294  1.0
  Cd  Cd10  1  0.250  0.250  0.500  1.0
  Cd  Cd11  1  0.750  0.750  0.500  1.0
  Cd  Cd12  1  0.379  0.879  0.000  1.0
  Cd  Cd13  1  0.121  0.379  0.000  1.0
  Cd  Cd14  1  0.879  0.621  0.000  1.0
  Cd  Cd15  1  0.621  0.121  0.000  1.0
[/CIF]
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