The material described by AuCd3 crystallizes in the hexagonal P6_3cm space group. Au(1) is bonded in a 11-coordinate geometry to one Cd(2), two equivalent Cd(3), four equivalent Cd(1), and four equivalent Cd(4) atoms. There are four inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 2-coordinate geometry to four equivalent Au(1) atoms. In the second Cd site, Cd(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Au(1) atoms. In the third Cd site, Cd(3) is bonded in a trigonal planar geometry to three equivalent Au(1) atoms. In the fourth Cd site, Cd(4) is bonded in a 3-coordinate geometry to four equivalent Au(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cd3Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.196
_cell_length_b   8.196
_cell_length_c   8.635
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   502.314
_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
  Cd  Cd0  1  0.634  0.000  0.922  1.0
  Cd  Cd1  1  0.634  0.634  0.422  1.0
  Cd  Cd2  1  0.000  0.366  0.422  1.0
  Cd  Cd3  1  0.000  0.634  0.922  1.0
  Cd  Cd4  1  0.366  0.366  0.922  1.0
  Cd  Cd5  1  0.366  0.000  0.422  1.0
  Cd  Cd6  1  0.000  0.000  0.328  1.0
  Cd  Cd7  1  0.000  0.000  0.828  1.0
  Cd  Cd8  1  0.333  0.667  0.204  1.0
  Cd  Cd9  1  0.667  0.333  0.704  1.0
  Cd  Cd10  1  0.333  0.667  0.704  1.0
  Cd  Cd11  1  0.667  0.333  0.204  1.0
  Cd  Cd12  1  0.295  0.000  0.078  1.0
  Cd  Cd13  1  0.295  0.295  0.578  1.0
  Cd  Cd14  1  0.000  0.705  0.578  1.0
  Cd  Cd15  1  0.000  0.295  0.078  1.0
  Cd  Cd16  1  0.705  0.705  0.078  1.0
  Cd  Cd17  1  0.705  0.000  0.578  1.0
  Au  Au18  1  0.671  0.000  0.250  1.0
  Au  Au19  1  0.671  0.671  0.750  1.0
  Au  Au20  1  0.000  0.329  0.750  1.0
  Au  Au21  1  0.000  0.671  0.250  1.0
  Au  Au22  1  0.329  0.329  0.250  1.0
  Au  Au23  1  0.329  0.000  0.750  1.0
[/CIF]
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The material described by AuCd3 crystallizes in the hexagonal P6_3cm space group. Au(1) is bonded in a 11-coordinate geometry to one Cd(2), two equivalent Cd(3), four equivalent Cd(1), and four equivalent Cd(4) atoms. There are four inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 2-coordinate geometry to four equivalent Au(1) atoms. In the second Cd site, Cd(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Au(1) atoms. In the third Cd site, Cd(3) is bonded in a trigonal planar geometry to three equivalent Au(1) atoms. In the fourth Cd site, Cd(4) is bonded in a 3-coordinate geometry to four equivalent Au(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cd3Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.196
_cell_length_b   8.196
_cell_length_c   8.635
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   502.314
_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
  Cd  Cd0  1  0.634  0.000  0.922  1.0
  Cd  Cd1  1  0.634  0.634  0.422  1.0
  Cd  Cd2  1  0.000  0.366  0.422  1.0
  Cd  Cd3  1  0.000  0.634  0.922  1.0
  Cd  Cd4  1  0.366  0.366  0.922  1.0
  Cd  Cd5  1  0.366  0.000  0.422  1.0
  Cd  Cd6  1  0.000  0.000  0.328  1.0
  Cd  Cd7  1  0.000  0.000  0.828  1.0
  Cd  Cd8  1  0.333  0.667  0.204  1.0
  Cd  Cd9  1  0.667  0.333  0.704  1.0
  Cd  Cd10  1  0.333  0.667  0.704  1.0
  Cd  Cd11  1  0.667  0.333  0.204  1.0
  Cd  Cd12  1  0.295  0.000  0.078  1.0
  Cd  Cd13  1  0.295  0.295  0.578  1.0
  Cd  Cd14  1  0.000  0.705  0.578  1.0
  Cd  Cd15  1  0.000  0.295  0.078  1.0
  Cd  Cd16  1  0.705  0.705  0.078  1.0
  Cd  Cd17  1  0.705  0.000  0.578  1.0
  Au  Au18  1  0.671  0.000  0.250  1.0
  Au  Au19  1  0.671  0.671  0.750  1.0
  Au  Au20  1  0.000  0.329  0.750  1.0
  Au  Au21  1  0.000  0.671  0.250  1.0
  Au  Au22  1  0.329  0.329  0.250  1.0
  Au  Au23  1  0.329  0.000  0.750  1.0
[/CIF]
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