The compound described by Mg2Cd is Molybdenite structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to nine equivalent Mg(1) and three equivalent Cd(1) atoms to form distorted MgMg9Cd3 cuboctahedra that share corners with six equivalent Cd(1)Mg6Cd6 cuboctahedra, corners with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, edges with six equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, faces with seven equivalent Cd(1)Mg6Cd6 cuboctahedra, and faces with thirteen equivalent Mg(1)Mg9Cd3 cuboctahedra. Cd(1) is bonded to six equivalent Mg(1) and six equivalent Cd(1) atoms to form distorted CdMg6Cd6 cuboctahedra that share corners with six equivalent Cd(1)Mg6Cd6 cuboctahedra, corners with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, edges with six equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, faces with six equivalent Cd(1)Mg6Cd6 cuboctahedra, and faces with fourteen equivalent Mg(1)Mg9Cd3 cuboctahedra. is represented by the CIF file [CIF]
data_Mg2Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.170
_cell_length_b   3.170
_cell_length_c   15.516
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   135.027
_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
  Mg  Mg0  1  0.333  0.667  0.915  1.0
  Mg  Mg1  1  0.333  0.667  0.585  1.0
  Mg  Mg2  1  0.667  0.333  0.415  1.0
  Mg  Mg3  1  0.667  0.333  0.085  1.0
  Cd  Cd4  1  0.667  0.333  0.750  1.0
  Cd  Cd5  1  0.333  0.667  0.250  1.0
[/CIF]
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The compound described by Mg2Cd is Molybdenite structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to nine equivalent Mg(1) and three equivalent Cd(1) atoms to form distorted MgMg9Cd3 cuboctahedra that share corners with six equivalent Cd(1)Mg6Cd6 cuboctahedra, corners with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, edges with six equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, faces with seven equivalent Cd(1)Mg6Cd6 cuboctahedra, and faces with thirteen equivalent Mg(1)Mg9Cd3 cuboctahedra. Cd(1) is bonded to six equivalent Mg(1) and six equivalent Cd(1) atoms to form distorted CdMg6Cd6 cuboctahedra that share corners with six equivalent Cd(1)Mg6Cd6 cuboctahedra, corners with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, edges with six equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Mg(1)Mg9Cd3 cuboctahedra, faces with six equivalent Cd(1)Mg6Cd6 cuboctahedra, and faces with fourteen equivalent Mg(1)Mg9Cd3 cuboctahedra. is represented by the CIF file [CIF]
data_Mg2Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.170
_cell_length_b   3.170
_cell_length_c   15.516
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   135.027
_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
  Mg  Mg0  1  0.333  0.667  0.915  1.0
  Mg  Mg1  1  0.333  0.667  0.585  1.0
  Mg  Mg2  1  0.667  0.333  0.415  1.0
  Mg  Mg3  1  0.667  0.333  0.085  1.0
  Cd  Cd4  1  0.667  0.333  0.750  1.0
  Cd  Cd5  1  0.333  0.667  0.250  1.0
[/CIF]
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