The structure described by La2Mg is beta-derived structured and crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded to two equivalent Mg(1) and ten equivalent La(1) atoms to form MgLa10Mg2 cuboctahedra that share corners with eighteen equivalent La(1)La7Mg5 cuboctahedra, edges with eight equivalent La(1)La7Mg5 cuboctahedra, edges with ten equivalent Mg(1)La10Mg2 cuboctahedra, faces with six equivalent Mg(1)La10Mg2 cuboctahedra, and faces with fourteen equivalent La(1)La7Mg5 cuboctahedra. La(1) is bonded to five equivalent Mg(1) and seven equivalent La(1) atoms to form distorted LaLa7Mg5 cuboctahedra that share corners with nine equivalent Mg(1)La10Mg2 cuboctahedra, corners with nine equivalent La(1)La7Mg5 cuboctahedra, edges with four equivalent Mg(1)La10Mg2 cuboctahedra, edges with fourteen equivalent La(1)La7Mg5 cuboctahedra, faces with seven equivalent Mg(1)La10Mg2 cuboctahedra, and faces with thirteen equivalent La(1)La7Mg5 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_La2Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.254
_cell_length_b   6.254
_cell_length_c   5.606
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.588
_symmetry_Int_Tables_number   1
_cell_volume   190.671
_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
  La  La0  1  0.001  0.304  0.750  1.0
  La  La1  1  0.304  0.001  0.750  1.0
  La  La2  1  0.696  0.999  0.250  1.0
  La  La3  1  0.999  0.696  0.250  1.0
  Mg  Mg4  1  0.646  0.646  0.750  1.0
  Mg  Mg5  1  0.354  0.354  0.250  1.0
[/CIF]
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The structure described by La2Mg is beta-derived structured and crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded to two equivalent Mg(1) and ten equivalent La(1) atoms to form MgLa10Mg2 cuboctahedra that share corners with eighteen equivalent La(1)La7Mg5 cuboctahedra, edges with eight equivalent La(1)La7Mg5 cuboctahedra, edges with ten equivalent Mg(1)La10Mg2 cuboctahedra, faces with six equivalent Mg(1)La10Mg2 cuboctahedra, and faces with fourteen equivalent La(1)La7Mg5 cuboctahedra. La(1) is bonded to five equivalent Mg(1) and seven equivalent La(1) atoms to form distorted LaLa7Mg5 cuboctahedra that share corners with nine equivalent Mg(1)La10Mg2 cuboctahedra, corners with nine equivalent La(1)La7Mg5 cuboctahedra, edges with four equivalent Mg(1)La10Mg2 cuboctahedra, edges with fourteen equivalent La(1)La7Mg5 cuboctahedra, faces with seven equivalent Mg(1)La10Mg2 cuboctahedra, and faces with thirteen equivalent La(1)La7Mg5 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_La2Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.254
_cell_length_b   6.254
_cell_length_c   5.606
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.588
_symmetry_Int_Tables_number   1
_cell_volume   190.671
_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
  La  La0  1  0.001  0.304  0.750  1.0
  La  La1  1  0.304  0.001  0.750  1.0
  La  La2  1  0.696  0.999  0.250  1.0
  La  La3  1  0.999  0.696  0.250  1.0
  Mg  Mg4  1  0.646  0.646  0.750  1.0
  Mg  Mg5  1  0.354  0.354  0.250  1.0
[/CIF]
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