The structure described by Cu2Cd5 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Cu(1), two equivalent Cd(2), two equivalent Cd(3), and six equivalent Cd(1) atoms to form distorted CuCd10Cu2 cuboctahedra that share corners with four equivalent Cu(1)Cd10Cu2 cuboctahedra, faces with two equivalent Cd(3)Cd6Cu6 cuboctahedra, and faces with six equivalent Cu(1)Cd10Cu2 cuboctahedra. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to three equivalent Cd(2) and six equivalent Cd(1) atoms. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 13-coordinate geometry to one Cu(2), three equivalent Cu(1), one Cd(3), four equivalent Cd(1), and four equivalent Cd(2) atoms. In the second Cd site, Cd(2) is bonded in a distorted T-shaped geometry to one Cu(2), two equivalent Cu(1), and eight equivalent Cd(1) atoms. In the third Cd site, Cd(3) is bonded to six equivalent Cu(1) and six equivalent Cd(1) atoms to form distorted CdCd6Cu6 cuboctahedra that share faces with two equivalent Cd(3)Cd6Cu6 cuboctahedra and faces with six equivalent Cu(1)Cd10Cu2 cuboctahedra. is represented by the CIF file [CIF]
data_Cd5Cu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.172
_cell_length_b   8.172
_cell_length_c   8.853
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   511.952
_cell_formula_units_Z   4
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  0.204  0.408  0.959  1.0
  Cd  Cd1  1  0.796  0.204  0.459  1.0
  Cd  Cd2  1  0.408  0.204  0.459  1.0
  Cd  Cd3  1  0.592  0.796  0.959  1.0
  Cd  Cd4  1  0.204  0.796  0.959  1.0
  Cd  Cd5  1  0.796  0.592  0.041  1.0
  Cd  Cd6  1  0.796  0.204  0.041  1.0
  Cd  Cd7  1  0.796  0.592  0.459  1.0
  Cd  Cd8  1  0.408  0.204  0.041  1.0
  Cd  Cd9  1  0.592  0.796  0.541  1.0
  Cd  Cd10  1  0.204  0.408  0.541  1.0
  Cd  Cd11  1  0.204  0.796  0.541  1.0
  Cd  Cd12  1  0.537  0.075  0.750  1.0
  Cd  Cd13  1  0.463  0.537  0.250  1.0
  Cd  Cd14  1  0.075  0.537  0.250  1.0
  Cd  Cd15  1  0.925  0.463  0.750  1.0
  Cd  Cd16  1  0.537  0.463  0.750  1.0
  Cd  Cd17  1  0.463  0.925  0.250  1.0
  Cd  Cd18  1  0.000  0.000  0.500  1.0
  Cd  Cd19  1  0.000  0.000  0.000  1.0
  Cu  Cu20  1  0.890  0.780  0.750  1.0
  Cu  Cu21  1  0.110  0.890  0.250  1.0
  Cu  Cu22  1  0.780  0.890  0.250  1.0
  Cu  Cu23  1  0.220  0.110  0.750  1.0
  Cu  Cu24  1  0.890  0.110  0.750  1.0
  Cu  Cu25  1  0.110  0.220  0.250  1.0
  Cu  Cu26  1  0.667  0.333  0.250  1.0
  Cu  Cu27  1  0.333  0.667  0.750  1.0
[/CIF]
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The structure described by Cu2Cd5 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Cu(1), two equivalent Cd(2), two equivalent Cd(3), and six equivalent Cd(1) atoms to form distorted CuCd10Cu2 cuboctahedra that share corners with four equivalent Cu(1)Cd10Cu2 cuboctahedra, faces with two equivalent Cd(3)Cd6Cu6 cuboctahedra, and faces with six equivalent Cu(1)Cd10Cu2 cuboctahedra. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to three equivalent Cd(2) and six equivalent Cd(1) atoms. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 13-coordinate geometry to one Cu(2), three equivalent Cu(1), one Cd(3), four equivalent Cd(1), and four equivalent Cd(2) atoms. In the second Cd site, Cd(2) is bonded in a distorted T-shaped geometry to one Cu(2), two equivalent Cu(1), and eight equivalent Cd(1) atoms. In the third Cd site, Cd(3) is bonded to six equivalent Cu(1) and six equivalent Cd(1) atoms to form distorted CdCd6Cu6 cuboctahedra that share faces with two equivalent Cd(3)Cd6Cu6 cuboctahedra and faces with six equivalent Cu(1)Cd10Cu2 cuboctahedra. is represented by the CIF file [CIF]
data_Cd5Cu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.172
_cell_length_b   8.172
_cell_length_c   8.853
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   511.952
_cell_formula_units_Z   4
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  0.204  0.408  0.959  1.0
  Cd  Cd1  1  0.796  0.204  0.459  1.0
  Cd  Cd2  1  0.408  0.204  0.459  1.0
  Cd  Cd3  1  0.592  0.796  0.959  1.0
  Cd  Cd4  1  0.204  0.796  0.959  1.0
  Cd  Cd5  1  0.796  0.592  0.041  1.0
  Cd  Cd6  1  0.796  0.204  0.041  1.0
  Cd  Cd7  1  0.796  0.592  0.459  1.0
  Cd  Cd8  1  0.408  0.204  0.041  1.0
  Cd  Cd9  1  0.592  0.796  0.541  1.0
  Cd  Cd10  1  0.204  0.408  0.541  1.0
  Cd  Cd11  1  0.204  0.796  0.541  1.0
  Cd  Cd12  1  0.537  0.075  0.750  1.0
  Cd  Cd13  1  0.463  0.537  0.250  1.0
  Cd  Cd14  1  0.075  0.537  0.250  1.0
  Cd  Cd15  1  0.925  0.463  0.750  1.0
  Cd  Cd16  1  0.537  0.463  0.750  1.0
  Cd  Cd17  1  0.463  0.925  0.250  1.0
  Cd  Cd18  1  0.000  0.000  0.500  1.0
  Cd  Cd19  1  0.000  0.000  0.000  1.0
  Cu  Cu20  1  0.890  0.780  0.750  1.0
  Cu  Cu21  1  0.110  0.890  0.250  1.0
  Cu  Cu22  1  0.780  0.890  0.250  1.0
  Cu  Cu23  1  0.220  0.110  0.750  1.0
  Cu  Cu24  1  0.890  0.110  0.750  1.0
  Cu  Cu25  1  0.110  0.220  0.250  1.0
  Cu  Cu26  1  0.667  0.333  0.250  1.0
  Cu  Cu27  1  0.333  0.667  0.750  1.0
[/CIF]
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