The crystal structure described by CeMg is alpha La-derived structured and crystallizes in the hexagonal P-6m2 space group. Mg(1) is bonded to six equivalent Mg(1) and six equivalent Ce(1) atoms to form MgCe6Mg6 cuboctahedra that share corners with eighteen equivalent Mg(1)Ce6Mg6 cuboctahedra, edges with six equivalent Mg(1)Ce6Mg6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Mg6 cuboctahedra, faces with eight equivalent Mg(1)Ce6Mg6 cuboctahedra, and faces with twelve equivalent Ce(1)Ce6Mg6 cuboctahedra. Ce(1) is bonded to six equivalent Mg(1) and six equivalent Ce(1) atoms to form CeCe6Mg6 cuboctahedra that share corners with eighteen equivalent Ce(1)Ce6Mg6 cuboctahedra, edges with six equivalent Ce(1)Ce6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Ce6Mg6 cuboctahedra, faces with eight equivalent Ce(1)Ce6Mg6 cuboctahedra, and faces with twelve equivalent Mg(1)Ce6Mg6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.071
_cell_length_b   3.071
_cell_length_c   6.026
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   49.216
_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  0.333  0.667  0.500  1.0
  Mg  Mg1  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by CeMg is alpha La-derived structured and crystallizes in the hexagonal P-6m2 space group. Mg(1) is bonded to six equivalent Mg(1) and six equivalent Ce(1) atoms to form MgCe6Mg6 cuboctahedra that share corners with eighteen equivalent Mg(1)Ce6Mg6 cuboctahedra, edges with six equivalent Mg(1)Ce6Mg6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Mg6 cuboctahedra, faces with eight equivalent Mg(1)Ce6Mg6 cuboctahedra, and faces with twelve equivalent Ce(1)Ce6Mg6 cuboctahedra. Ce(1) is bonded to six equivalent Mg(1) and six equivalent Ce(1) atoms to form CeCe6Mg6 cuboctahedra that share corners with eighteen equivalent Ce(1)Ce6Mg6 cuboctahedra, edges with six equivalent Ce(1)Ce6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Ce6Mg6 cuboctahedra, faces with eight equivalent Ce(1)Ce6Mg6 cuboctahedra, and faces with twelve equivalent Mg(1)Ce6Mg6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.071
_cell_length_b   3.071
_cell_length_c   6.026
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   49.216
_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  0.333  0.667  0.500  1.0
  Mg  Mg1  1  0.000  0.000  0.000  1.0
[/CIF]
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