The material structure described by CeMg2 crystallizes in the monoclinic C2/c space group. Mg(1) is bonded to seven equivalent Mg(1) and five equivalent Ce(1) atoms to form distorted MgCe5Mg7 cuboctahedra that share corners with six equivalent Ce(1)Ce2Mg10 cuboctahedra, corners with twelve equivalent Mg(1)Ce5Mg7 cuboctahedra, edges with four equivalent Ce(1)Ce2Mg10 cuboctahedra, edges with fourteen equivalent Mg(1)Ce5Mg7 cuboctahedra, faces with eight equivalent Ce(1)Ce2Mg10 cuboctahedra, and faces with twelve equivalent Mg(1)Ce5Mg7 cuboctahedra. Ce(1) is bonded to ten equivalent Mg(1) and two equivalent Ce(1) atoms to form CeCe2Mg10 cuboctahedra that share corners with six equivalent Ce(1)Ce2Mg10 cuboctahedra, corners with twelve equivalent Mg(1)Ce5Mg7 cuboctahedra, edges with eight equivalent Mg(1)Ce5Mg7 cuboctahedra, edges with ten equivalent Ce(1)Ce2Mg10 cuboctahedra, faces with four equivalent Ce(1)Ce2Mg10 cuboctahedra, and faces with sixteen equivalent Mg(1)Ce5Mg7 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.812
_cell_length_b   5.812
_cell_length_c   6.001
_cell_angle_alpha   67.044
_cell_angle_beta   67.044
_cell_angle_gamma   59.282
_symmetry_Int_Tables_number   1
_cell_volume   155.725
_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  0.076  0.924  0.250  1.0
  Ce  Ce1  1  0.924  0.076  0.750  1.0
  Mg  Mg2  1  0.255  0.414  0.749  1.0
  Mg  Mg3  1  0.586  0.745  0.751  1.0
  Mg  Mg4  1  0.414  0.255  0.249  1.0
  Mg  Mg5  1  0.745  0.586  0.251  1.0
[/CIF]
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The material structure described by CeMg2 crystallizes in the monoclinic C2/c space group. Mg(1) is bonded to seven equivalent Mg(1) and five equivalent Ce(1) atoms to form distorted MgCe5Mg7 cuboctahedra that share corners with six equivalent Ce(1)Ce2Mg10 cuboctahedra, corners with twelve equivalent Mg(1)Ce5Mg7 cuboctahedra, edges with four equivalent Ce(1)Ce2Mg10 cuboctahedra, edges with fourteen equivalent Mg(1)Ce5Mg7 cuboctahedra, faces with eight equivalent Ce(1)Ce2Mg10 cuboctahedra, and faces with twelve equivalent Mg(1)Ce5Mg7 cuboctahedra. Ce(1) is bonded to ten equivalent Mg(1) and two equivalent Ce(1) atoms to form CeCe2Mg10 cuboctahedra that share corners with six equivalent Ce(1)Ce2Mg10 cuboctahedra, corners with twelve equivalent Mg(1)Ce5Mg7 cuboctahedra, edges with eight equivalent Mg(1)Ce5Mg7 cuboctahedra, edges with ten equivalent Ce(1)Ce2Mg10 cuboctahedra, faces with four equivalent Ce(1)Ce2Mg10 cuboctahedra, and faces with sixteen equivalent Mg(1)Ce5Mg7 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.812
_cell_length_b   5.812
_cell_length_c   6.001
_cell_angle_alpha   67.044
_cell_angle_beta   67.044
_cell_angle_gamma   59.282
_symmetry_Int_Tables_number   1
_cell_volume   155.725
_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  0.076  0.924  0.250  1.0
  Ce  Ce1  1  0.924  0.076  0.750  1.0
  Mg  Mg2  1  0.255  0.414  0.749  1.0
  Mg  Mg3  1  0.586  0.745  0.751  1.0
  Mg  Mg4  1  0.414  0.255  0.249  1.0
  Mg  Mg5  1  0.745  0.586  0.251  1.0
[/CIF]
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