The crystal structure described by Mg6CeCd crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 11-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Ce(1), and one Cd(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Ce(1), and two equivalent Cd(1) atoms. In the third Mg site, Mg(3) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Ce(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent Cd(1) atoms. Ce(1) is bonded to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Cd(1) atoms to form a mixture of distorted face and corner-sharing CeMg10Cd2 cuboctahedra. Cd(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg6Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.127
_cell_length_b   6.399
_cell_length_c   6.841
_cell_angle_alpha   117.882
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   198.377
_cell_formula_units_Z   1
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  0.500  0.649  0.299  1.0
  Ce  Ce1  1  0.500  0.184  0.367  1.0
  Mg  Mg2  1  0.500  0.680  0.856  1.0
  Mg  Mg3  1  0.500  0.176  0.856  1.0
  Mg  Mg4  1  1.000  0.829  0.153  1.0
  Mg  Mg5  1  1.000  0.324  0.153  1.0
  Mg  Mg6  1  1.000  0.344  0.688  1.0
  Mg  Mg7  1  1.000  0.814  0.629  1.0
[/CIF]
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The crystal structure described by Mg6CeCd crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 11-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Ce(1), and one Cd(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Ce(1), and two equivalent Cd(1) atoms. In the third Mg site, Mg(3) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Ce(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent Cd(1) atoms. Ce(1) is bonded to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Cd(1) atoms to form a mixture of distorted face and corner-sharing CeMg10Cd2 cuboctahedra. Cd(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg6Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.127
_cell_length_b   6.399
_cell_length_c   6.841
_cell_angle_alpha   117.882
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   198.377
_cell_formula_units_Z   1
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  0.500  0.649  0.299  1.0
  Ce  Ce1  1  0.500  0.184  0.367  1.0
  Mg  Mg2  1  0.500  0.680  0.856  1.0
  Mg  Mg3  1  0.500  0.176  0.856  1.0
  Mg  Mg4  1  1.000  0.829  0.153  1.0
  Mg  Mg5  1  1.000  0.324  0.153  1.0
  Mg  Mg6  1  1.000  0.344  0.688  1.0
  Mg  Mg7  1  1.000  0.814  0.629  1.0
[/CIF]
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