The compound described by MgCd crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Cd(1), two equivalent Cd(3), and four equivalent Cd(2) atoms to form distorted MgMg2Cd8 cuboctahedra that share corners with two equivalent Cd(1)Mg8 cuboctahedra, corners with four equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with four equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with eight equivalent Mg(2)Mg6Cd6 cuboctahedra,  an edgeedge with one Mg(2)Mg6Cd6 cuboctahedra,  an edgeedge with one Cd(1)Mg8 cuboctahedra, edges with eight equivalent Mg(3)Mg4Cd8 cuboctahedra, faces with two equivalent Mg(3)Mg4Cd8 cuboctahedra, faces with two equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with four equivalent Mg(1)Mg2Cd8 cuboctahedra, and faces with six equivalent Cd(3)Mg8Cd4 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Cd(1), and four equivalent Cd(3) atoms to form distorted MgMg6Cd6 cuboctahedra that share corners with four equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with six equivalent Mg(2)Mg6Cd6 cuboctahedra, corners with eight equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with eight equivalent Cd(1)Mg8 cuboctahedra,  an edgeedge with one Mg(1)Mg2Cd8 cuboctahedra,  an edgeedge with one Cd(1)Mg8 cuboctahedra, edges with four equivalent Cd(2)Mg6Cd2 cuboctahedra, edges with four equivalent Cd(3)Mg8Cd4 cuboctahedra, faces with two equivalent Mg(1)Mg2Cd8 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, faces with four equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with four equivalent Cd(3)Mg8Cd4 cuboctahedra, and faces with six equivalent Mg(3)Mg4Cd8 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(2), two equivalent Mg(3), two equivalent Cd(2), two equivalent Cd(3), and four equivalent Cd(1) atoms to form distorted MgMg4Cd8 cuboctahedra that share corners with four equivalent Cd(1)Mg8 cuboctahedra, corners with six equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with six equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with six equivalent Cd(3)Mg8Cd4 cuboctahedra,  an edgeedge with one Cd(2)Mg6Cd2 cuboctahedra, edges with three equivalent Cd(3)Mg8Cd4 cuboctahedra, edges with four equivalent Cd(1)Mg8 cuboctahedra, edges with eight equivalent Mg(1)Mg2Cd8 cuboctahedra, faces with two equivalent Mg(1)Mg2Cd8 cuboctahedra, faces with two equivalent Cd(3)Mg8Cd4 cuboctahedra, faces with four equivalent Mg(3)Mg4Cd8 cuboctahedra, and faces with six equivalent Mg(2)Mg6Cd6 cuboctahedra. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent Mg(1), two equivalent Mg(2), and four equivalent Mg(3) atoms to form distorted CdMg8 cuboctahedra that share corners with two equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with four equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with four equivalent Cd(1)Mg8 cuboctahedra, corners with four equivalent Cd(3)Mg8Cd4 cuboctahedra, corners with eight equivalent Mg(2)Mg6Cd6 cuboctahedra,  an edgeedge with one Mg(1)Mg2Cd8 cuboctahedra,  an edgeedge with one Mg(2)Mg6Cd6 cuboctahedra, edges with two equivalent Cd(1)Mg8 cuboctahedra, edges with four equivalent Mg(3)Mg4Cd8 cuboctahedra, edges with four equivalent Cd(2)Mg6Cd2 cuboctahedra, edges with four equivalent Cd(3)Mg8Cd4 cuboctahedra, faces with two equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, and faces with two equivalent Cd(3)Mg8Cd4 cuboctahedra. In the second Cd site, Cd(2) is bonded to two equivalent Mg(3), four equivalent Mg(1), and two equivalent Cd(3) atoms to form distorted CdMg6Cd2 cuboctahedra that share corners with four equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with four equivalent Mg(2)Mg6Cd6 cuboctahedra, corners with four equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with six equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with eight equivalent Cd(3)Mg8Cd4 cuboctahedra,  an edgeedge with one Mg(3)Mg4Cd8 cuboctahedra,  an edgeedge with one Cd(3)Mg8Cd4 cuboctahedra, edges with two equivalent Cd(2)Mg6Cd2 cuboctahedra, edges with four equivalent Mg(2)Mg6Cd6 cuboctahedra, edges with four equivalent Cd(1)Mg8 cuboctahedra, faces with two equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, and faces with two equivalent Cd(3)Mg8Cd4 cuboctahedra. In the third Cd site, Cd(3) is bonded to two equivalent Mg(1), two equivalent Mg(3), four equivalent Mg(2), two equivalent Cd(2), and two equivalent Cd(3) atoms to form distorted CdMg8Cd4 cuboctahedra that share corners with four equivalent Cd(1)Mg8 cuboctahedra, corners with six equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with six equivalent Cd(3)Mg8Cd4 cuboctahedra, corners with eight equivalent Cd(2)Mg6Cd2 cuboctahedra,  an edgeedge with one Cd(2)Mg6Cd2 cuboctahedra, edges with three equivalent Mg(3)Mg4Cd8 cuboctahedra, edges with four equivalent Mg(2)Mg6Cd6 cuboctahedra, edges with four equivalent Cd(1)Mg8 cuboctahedra, faces with two equivalent Mg(3)Mg4Cd8 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, faces with four equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with four equivalent Cd(3)Mg8Cd4 cuboctahedra, and faces with six equivalent Mg(1)Mg2Cd8 cuboctahedra. is represented by the CIF card [CIF]
data_MgCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.243
_cell_length_b   8.075
_cell_length_c   4.923
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   78.417
_symmetry_Int_Tables_number   1
_cell_volume   126.270
_cell_formula_units_Z   3
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  0.994  0.011  0.000  1.0
  Mg  Mg1  1  0.666  0.669  0.000  1.0
  Mg  Mg2  1  0.782  0.435  0.500  1.0
  Cd  Cd3  1  0.331  0.338  0.000  1.0
  Cd  Cd4  1  0.447  0.107  0.500  1.0
  Cd  Cd5  1  0.113  0.773  0.500  1.0
[/CIF]
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The compound described by MgCd crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Cd(1), two equivalent Cd(3), and four equivalent Cd(2) atoms to form distorted MgMg2Cd8 cuboctahedra that share corners with two equivalent Cd(1)Mg8 cuboctahedra, corners with four equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with four equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with eight equivalent Mg(2)Mg6Cd6 cuboctahedra,  an edgeedge with one Mg(2)Mg6Cd6 cuboctahedra,  an edgeedge with one Cd(1)Mg8 cuboctahedra, edges with eight equivalent Mg(3)Mg4Cd8 cuboctahedra, faces with two equivalent Mg(3)Mg4Cd8 cuboctahedra, faces with two equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with four equivalent Mg(1)Mg2Cd8 cuboctahedra, and faces with six equivalent Cd(3)Mg8Cd4 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Cd(1), and four equivalent Cd(3) atoms to form distorted MgMg6Cd6 cuboctahedra that share corners with four equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with six equivalent Mg(2)Mg6Cd6 cuboctahedra, corners with eight equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with eight equivalent Cd(1)Mg8 cuboctahedra,  an edgeedge with one Mg(1)Mg2Cd8 cuboctahedra,  an edgeedge with one Cd(1)Mg8 cuboctahedra, edges with four equivalent Cd(2)Mg6Cd2 cuboctahedra, edges with four equivalent Cd(3)Mg8Cd4 cuboctahedra, faces with two equivalent Mg(1)Mg2Cd8 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, faces with four equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with four equivalent Cd(3)Mg8Cd4 cuboctahedra, and faces with six equivalent Mg(3)Mg4Cd8 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(2), two equivalent Mg(3), two equivalent Cd(2), two equivalent Cd(3), and four equivalent Cd(1) atoms to form distorted MgMg4Cd8 cuboctahedra that share corners with four equivalent Cd(1)Mg8 cuboctahedra, corners with six equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with six equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with six equivalent Cd(3)Mg8Cd4 cuboctahedra,  an edgeedge with one Cd(2)Mg6Cd2 cuboctahedra, edges with three equivalent Cd(3)Mg8Cd4 cuboctahedra, edges with four equivalent Cd(1)Mg8 cuboctahedra, edges with eight equivalent Mg(1)Mg2Cd8 cuboctahedra, faces with two equivalent Mg(1)Mg2Cd8 cuboctahedra, faces with two equivalent Cd(3)Mg8Cd4 cuboctahedra, faces with four equivalent Mg(3)Mg4Cd8 cuboctahedra, and faces with six equivalent Mg(2)Mg6Cd6 cuboctahedra. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent Mg(1), two equivalent Mg(2), and four equivalent Mg(3) atoms to form distorted CdMg8 cuboctahedra that share corners with two equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with four equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with four equivalent Cd(1)Mg8 cuboctahedra, corners with four equivalent Cd(3)Mg8Cd4 cuboctahedra, corners with eight equivalent Mg(2)Mg6Cd6 cuboctahedra,  an edgeedge with one Mg(1)Mg2Cd8 cuboctahedra,  an edgeedge with one Mg(2)Mg6Cd6 cuboctahedra, edges with two equivalent Cd(1)Mg8 cuboctahedra, edges with four equivalent Mg(3)Mg4Cd8 cuboctahedra, edges with four equivalent Cd(2)Mg6Cd2 cuboctahedra, edges with four equivalent Cd(3)Mg8Cd4 cuboctahedra, faces with two equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, and faces with two equivalent Cd(3)Mg8Cd4 cuboctahedra. In the second Cd site, Cd(2) is bonded to two equivalent Mg(3), four equivalent Mg(1), and two equivalent Cd(3) atoms to form distorted CdMg6Cd2 cuboctahedra that share corners with four equivalent Mg(1)Mg2Cd8 cuboctahedra, corners with four equivalent Mg(2)Mg6Cd6 cuboctahedra, corners with four equivalent Cd(2)Mg6Cd2 cuboctahedra, corners with six equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with eight equivalent Cd(3)Mg8Cd4 cuboctahedra,  an edgeedge with one Mg(3)Mg4Cd8 cuboctahedra,  an edgeedge with one Cd(3)Mg8Cd4 cuboctahedra, edges with two equivalent Cd(2)Mg6Cd2 cuboctahedra, edges with four equivalent Mg(2)Mg6Cd6 cuboctahedra, edges with four equivalent Cd(1)Mg8 cuboctahedra, faces with two equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, and faces with two equivalent Cd(3)Mg8Cd4 cuboctahedra. In the third Cd site, Cd(3) is bonded to two equivalent Mg(1), two equivalent Mg(3), four equivalent Mg(2), two equivalent Cd(2), and two equivalent Cd(3) atoms to form distorted CdMg8Cd4 cuboctahedra that share corners with four equivalent Cd(1)Mg8 cuboctahedra, corners with six equivalent Mg(3)Mg4Cd8 cuboctahedra, corners with six equivalent Cd(3)Mg8Cd4 cuboctahedra, corners with eight equivalent Cd(2)Mg6Cd2 cuboctahedra,  an edgeedge with one Cd(2)Mg6Cd2 cuboctahedra, edges with three equivalent Mg(3)Mg4Cd8 cuboctahedra, edges with four equivalent Mg(2)Mg6Cd6 cuboctahedra, edges with four equivalent Cd(1)Mg8 cuboctahedra, faces with two equivalent Mg(3)Mg4Cd8 cuboctahedra, faces with two equivalent Cd(2)Mg6Cd2 cuboctahedra, faces with two equivalent Cd(1)Mg8 cuboctahedra, faces with four equivalent Mg(2)Mg6Cd6 cuboctahedra, faces with four equivalent Cd(3)Mg8Cd4 cuboctahedra, and faces with six equivalent Mg(1)Mg2Cd8 cuboctahedra. is represented by the CIF card [CIF]
data_MgCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.243
_cell_length_b   8.075
_cell_length_c   4.923
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   78.417
_symmetry_Int_Tables_number   1
_cell_volume   126.270
_cell_formula_units_Z   3
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  0.994  0.011  0.000  1.0
  Mg  Mg1  1  0.666  0.669  0.000  1.0
  Mg  Mg2  1  0.782  0.435  0.500  1.0
  Cd  Cd3  1  0.331  0.338  0.000  1.0
  Cd  Cd4  1  0.447  0.107  0.500  1.0
  Cd  Cd5  1  0.113  0.773  0.500  1.0
[/CIF]
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