The structure described by MgCe2 is Cuprite structured and crystallizes in the tetragonal P4_2/mnm space group. Mg(1) is bonded to six equivalent Ce(1) atoms to form a mixture of distorted corner and edge-sharing MgCe6 octahedra. The corner-sharing octahedral tilt angles are 65°. Ce(1) is bonded in a 4-coordinate geometry to three equivalent Mg(1) and one Ce(1) atom. is represented by the CIF file [CIF]
data_Ce2Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.196
_cell_length_b   6.196
_cell_length_c   5.639
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   216.496
_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
  Ce  Ce0  1  0.350  0.350  0.000  1.0
  Ce  Ce1  1  0.650  0.650  0.000  1.0
  Ce  Ce2  1  0.150  0.850  0.500  1.0
  Ce  Ce3  1  0.850  0.150  0.500  1.0
  Mg  Mg4  1  0.000  0.000  0.000  1.0
  Mg  Mg5  1  0.500  0.500  0.500  1.0
[/CIF]
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The structure described by MgCe2 is Cuprite structured and crystallizes in the tetragonal P4_2/mnm space group. Mg(1) is bonded to six equivalent Ce(1) atoms to form a mixture of distorted corner and edge-sharing MgCe6 octahedra. The corner-sharing octahedral tilt angles are 65°. Ce(1) is bonded in a 4-coordinate geometry to three equivalent Mg(1) and one Ce(1) atom. is represented by the CIF file [CIF]
data_Ce2Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.196
_cell_length_b   6.196
_cell_length_c   5.639
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   216.496
_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
  Ce  Ce0  1  0.350  0.350  0.000  1.0
  Ce  Ce1  1  0.650  0.650  0.000  1.0
  Ce  Ce2  1  0.150  0.850  0.500  1.0
  Ce  Ce3  1  0.850  0.150  0.500  1.0
  Mg  Mg4  1  0.000  0.000  0.000  1.0
  Mg  Mg5  1  0.500  0.500  0.500  1.0
[/CIF]
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