The crystal structure described by Mg4CeY is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Mg(1) is bonded to six equivalent Mg(1), three equivalent Ce(1), and three equivalent Y(1) atoms to form a mixture of face, corner, and edge-sharing MgCe3Y3Mg6 cuboctahedra. Ce(1) is bonded in a 16-coordinate geometry to twelve equivalent Mg(1) and four equivalent Y(1) atoms. Y(1) is bonded in a 16-coordinate geometry to twelve equivalent Mg(1) and four equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_CeYMg4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.030
_cell_length_b   6.030
_cell_length_c   6.030
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   155.018
_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
  Ce  Ce0  1  0.250  0.250  0.250  1.0
  Y  Y1  1  0.000  0.000  0.000  1.0
  Mg  Mg2  1  0.125  0.625  0.625  1.0
  Mg  Mg3  1  0.625  0.125  0.625  1.0
  Mg  Mg4  1  0.625  0.625  0.125  1.0
  Mg  Mg5  1  0.625  0.625  0.625  1.0
[/CIF]
.
The crystal structure described by Mg4CeY is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Mg(1) is bonded to six equivalent Mg(1), three equivalent Ce(1), and three equivalent Y(1) atoms to form a mixture of face, corner, and edge-sharing MgCe3Y3Mg6 cuboctahedra. Ce(1) is bonded in a 16-coordinate geometry to twelve equivalent Mg(1) and four equivalent Y(1) atoms. Y(1) is bonded in a 16-coordinate geometry to twelve equivalent Mg(1) and four equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_CeYMg4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.030
_cell_length_b   6.030
_cell_length_c   6.030
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   155.018
_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
  Ce  Ce0  1  0.250  0.250  0.250  1.0
  Y  Y1  1  0.000  0.000  0.000  1.0
  Mg  Mg2  1  0.125  0.625  0.625  1.0
  Mg  Mg3  1  0.625  0.125  0.625  1.0
  Mg  Mg4  1  0.625  0.625  0.125  1.0
  Mg  Mg5  1  0.625  0.625  0.625  1.0
[/CIF]
.